To see the other types of publications on this topic, follow the link: Reduced irrigation.
Journal articles on the topic 'Reduced irrigation'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Reduced irrigation.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Kasniya, Pawan Kumar, and Opinder Singh Sandhu. "Alternate wetting and drying irrigation: A strategic approach to increase water productivity and managing of sheath blight disease in rice." JOURNAL OF MYCOLOGY AND PLANT PATHOLOGY 54, no. 02 (2024): 122. http://dx.doi.org/10.59467/jmpp.2024.54.122.
Full textAbstract:
The traditional practice of continuous flooding irrigation in rice cultivation has resulted in excessive groundwater exploitation and low water productivity of crop. This study aimed to evaluate the impact of two irrigation techniques, alternate wetting and drying (AWD) and continuous flooding (CF) on the development of sheath blight disease (Rhizoctonia solani Kuhn) and water productivity of poplar rice cultivar PR 121 during the kharif seasons 2021 and 2022. Irrigating the rice fields two days after percolation of ponded water as follow AWD technique was identified the optimal irrigation practice for saving irrigation water and managing of sheath blight disease in rice crop. The AWD technique of irrigation was significantly reduced the disease severity (32.3%), number of irrigations (21.3%) and volume of irrigation water (20.3%), while increasing water productivity (29.9%) and grain yield (1.26%) as compared to the traditional continuous flooding system in rice cultivation.. KEYWORDS :Irrigation, severity, sheath blight, water productivity, yield
2
Barber, J. S., and R. S. Jessop. "Factors affecting yield and quality in irrigated wheat." Journal of Agricultural Science 109, no. 1 (1987): 19–26. http://dx.doi.org/10.1017/s002185960008093x.
Full textAbstract:
SummaryTwo field experiments examined the effects of nitrogen fertilizer, irrigation frequency and three wheat varieties on the yield and quality of irrigated wheat on a heavy clay soil. In the first experiment, with irrigation supplied to all plots at mid-tillering and close to ear emergence, there were negative effects of nitrogen fertilizer on grain yield with the reverse occurring with grain protein. The variety Songlen had one of the highest grain yields combined with higher milling yields and flour protein. In the second experiment, yield was maximized with at least two irrigations, whilst increasing irrigation frequency reduced flour protein and dough development time. While WW15 gave the highest yields irrespective of nitrogen or irrigation treatments, this variety had the lowest flour protein. With only one irrigation or without irrigation, nitrogen fertilizer increased grain protein; more frequent irrigation reduced mean flour protein.
3
Taylor, Donald C. "Reduced Pressure Irrigation Investment Economics." Water Resources Research 22, no. 2 (1986): 121–28. http://dx.doi.org/10.1029/wr022i002p00121.
Full text
4
Chen, Ji-Jhong, Youping Sun, Lorence R. Oki, et al. "Climate-ready Landscape Plants: Garden Roses Trialed at Reduced Irrigation Frequency in Utah, USA." HortTechnology 33, no. 5 (2023): 477–92. http://dx.doi.org/10.21273/horttech05252-23.
Full textAbstract:
Increased urban and suburban populations in the arid western United States have resulted in more water demand; however, water availability in the region has become limited because of inadequate precipitation. Recent droughts have led to restrictions on irrigating landscape plants. Garden rose (Rosa ×hybrida) is commonly used as flowering plants in residential landscapes, but its drought tolerance has not been widely studied. The objective of this study was to determine the impact of reduced irrigation frequency on visual quality, plant growth, and physiology of five garden rose cultivars, including ChewPatout (Oso Easy® Urban Legend®), Meibenbino (Petite Knock Out®), MEIRIFTDAY (Oso Easy® Double Pink), Overedclimb (Cherry Frost™), and Radbeauty (Sitting Pretty™). Twenty-four plants of each rose cultivar were established in a trial plot at Utah Agricultural Experiment Station Greenville Research Farm (North Logan, UT, USA) in Summer 2021. Plants were randomly assigned to one of three deficit irrigation treatments for which irrigation frequencies were calculated using 80% reference evapotranspiration (ETO) (high), 50% ETO (medium), and 20% ETO (low). The total volumes of irrigation water applied to each plant were 345.6, 172.8, and 43.2 L for the high, medium, and low irrigation frequencies, respectively, during the deficit irrigation trial from 12 May to 30 Sep 2022. Root zones were wetted more frequently as irrigation frequency increased from low to high irrigation frequencies. Decreased irrigation frequency increased the number of visibly wilted and damaged leaves on all rose cultivars. However, only ‘Meibenbino’ and ‘MEIRIFTDAY’ exhibited a reduction in overall appearance under decreased irrigation frequency. The relative growth indices of both ‘Meibenbino’ and ‘MEIRIFTDAY’ decreased by 6%, whereas the dry weights of their leaves decreased by 37% and 36%, respectively, as irrigation decreased from high to low frequencies. Roses in this study appeared to decrease stomatal conductance up to 51% when irrigation decreased from high to low frequencies, or when air temperature increased. ‘Meibenbino’ and ‘MEIRIFTDAY’ exhibited unacceptable overall appearance, growth reduction, and higher leaf–air temperature differences, and they were less tolerant to reduced irrigation. Although the ‘Radbeauty’ maintained plant growth under the reduced irrigation frequency, the large leaf size led to a more visibly wilted appearance and the potential for heat stress, thus impairing visual quality. ‘ChewPatout’ and ‘Overedclimb’ were most tolerant to deficit irrigation at 20% ETO and maintained plant growth with acceptable visual quality and lower leaf temperatures when they received one irrigation during the growing season.
5
Zaman, R., A. R. Akanda, S. K. Biswas, and M. R. Islam. "Effect of Deficit Irrigation on Raised Bed Wheat Cultivation." Cercetari Agronomice in Moldova 50, no. 4 (2017): 17–28. http://dx.doi.org/10.1515/cerce-2017-0032.
Full textAbstract:
Abstract The experiment was conducted during Rabi season of 2015-2016 and 2016-2017 at the Regional Agricultural Research station, BARI, Ishurdi, Pabna, Bangladesh, to determine the water requirements of wheat on raised bed and the effect of different deficit irrigation on yield, water use efficiency and applied water productivity under raised bed wheat. This study consisted of following irrigation treatments: T1 = Irrigations up to 100% field capacity (FC) at crown root initiation (CRI), botting and grain filling stages (flat bed), T2 = Irrigations up to 100% FC at CRI, botting and grain filling stages on raised bed, T3 = Irrigations up to 80% FC at CRI, botting and grain filling stages on raised bed and T4 = Irrigations up to 60% FC at CRI, botting and grain filling stages on raised bed and laid out in a randomize complete block design with three replications. The result showed that significant effect of irrigation treatments were observed on plant height, spike per m2 and grain yield. Highest grain yield (4.66 t/ha) was obtained from treatment, irrigations up to 100% FC at CRI, botting and grain filling stages on raised bed, followed by irrigation up to 100% FC at same stages on flat bed. At raised bed wheat cultivation saving 14.30% water with increasing 15.66% grain yield than flat bed. Besides, comparing deficit irrigation (20% and 40% of full irrigation) and full irrigation condition on raised bed seeding system water use could be reduced about 4.18% to 5.57%, while scarifying 18.20% to 32.33% grain yield, where reduced 14.17% to 27.54% water use efficiency. Maximum applied water productivity 1.81 kg m−3 was observed in raised bed full irrigation condition. The rate of daily evaporation started to increase as the temperature started to rise and humidity started to decrease during the crop growing period. The results will be helpful for taking policy decision regarding efficient irrigation and water management under prevailing water scarce situation.
6
Sapkota, Anish, Amir Haghverdi, Claudia C. E. Avila, and Samantha C. Ying. "Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies." Soil Systems 4, no. 2 (2020): 20. http://dx.doi.org/10.3390/soilsystems4020020.
Full textAbstract:
Irrigation practices can greatly influence greenhouse gas (GHG) emissions because of their control on soil microbial activity and substrate supply. However, the effects of different irrigation management practices, such as flood irrigations versus reduced volume methods, including drip and sprinkler irrigation, on GHG emissions are still poorly understood. Therefore, this review was performed to investigate the effects of different irrigation management strategies on the emission of nitrous oxide (N2O), carbon dioxide (CO2), and methane (CH4) by synthesizing existing research that either directly or indirectly examined the effects of at least two irrigation rates on GHG emissions within a single field-based study. Out of thirty-two articles selected for review, reduced irrigation was found to be effective in lowering the rate of CH4 emissions, while flood irrigation had the highest CH4 emission. The rate of CO2 emission increased mostly under low irrigation, and the effect of irrigation strategies on N2O emissions were inconsistent, though a majority of studies reported low N2O emissions in continuously flooded field treatments. The global warming potential (GWP) demonstrated that reduced or water-saving irrigation strategies have the potential to decrease the effect of GHG emissions. In general, GWP was higher for the field that was continuously flooded. The major finding from this review is that optimizing irrigation may help to reduce CH4 emissions and net GWP. However, more field research assessing the effect of varying rates of irrigation on the emission of GHGs from the agricultural field is warranted.
7
Honorata, Danilčenko, Jarienė Elvyra, Televičiutė Dalė, et al. "Reduced microbiological contamination following irrigation of germinated seed for foods." Czech Journal of Food Sciences 36, No. 2 (2018): 139–45. http://dx.doi.org/10.17221/267/2017-cjfs.
Full textAbstract:
Germinated seeds are rich in various nutrients but are vulnerable to fungal contamination which favours micromycete formation on the sprouts. The main aim of this work was an investigation of strategies to reduce the contamination of sprouted seed foods. Over the course of 96 hours of sprouting, seeds of organic spring wheat (Triticum aestivum L.), winter wheat (Triticum aestivum L.), naked oat (Avena nuda L.), triticale (xTriticosecale) and rye (Secale cereale L.) were irrigated in water filtered using the Pazdroid Med-1500 filtration device with and without 4% ethyl alcohol. Germinated seeds were stored at 18°C for one, three and seven days and the levels of Mucor spp., Penicillium spp., Alternaria spp., Aspergillus spp., Fusarium spp. and Bipolaris spp were determined. Micromycete numbers were greater in sprouted winter wheat and rye but were reduced when these were soaked and irrigated with filtered water and filtered water containing 4% ethyl alcohol. Filtered water led to greater reductions in micromycete numbers in sprouted winter and spring wheat than in other seeds.
8
Xu, C., and D. I. Leskovar. "Growth, physiology and yield responses of cabbage to deficit irrigation." Horticultural Science 41, No. 3 (2014): 138–46. http://dx.doi.org/10.17221/208/2013-hortsci.
Full textAbstract:
Field experiments were conducted in two seasons to investigate growth, physiology and yield responses of cabbage (Brassica oleracea L. cvs Pennant and Rio Grande) to deficit irrigation. In 2012 season, 50% of crop evapotranspiration (ETc) irrigation temporarily decreased plant size, reduced leaf area, fresh weight, relative water content, specific leaf area and gas exchange during late development, and decreased head fresh weight, size, marketable and total yield. Deficit irrigation at 75% ETc had little influence on plant growth and physiology, but it still reduced both marketable and total yield. In 2013 season, 75% ETc irrigation had little influence on plant growth, leaf characteristics, photosynthetic rate, head fresh weight and size, but it temporarily increased chlorophyll and carotenoid content, and decreased stomata conductance, transpiration, and marketable yield. Pennant, the green-head cultivar, had higher photosynthetic rate, head fresh weight, marketable and total yield than the red-head cultivar Rio Grande. In both seasons, deficit irrigations did not influence cabbage head dry weight, indicating that most yield reduction under deficit irrigations is related to water content.  
9
Kirnak, H., C. Kaya, D. Higgs, I. Bolat, M. Simsek, and A. Ikinci. "Effects of preharvest drip-irrigation scheduling on strawberry yield, quality and growth." Australian Journal of Experimental Agriculture 43, no. 1 (2003): 105. http://dx.doi.org/10.1071/ea02045.
Full textAbstract:
Strawberry (Fragaria × ananassa Duch) cultivars, Oso Grande and Camarosa were grown in the field from July 1999 to May 2000 in order to investigate the effectiveness of preharvest drip-irrigation management on fruit yield, quality (i.e. soluble dry matter, fruit size), leaf macro-nutrient composition and normal growth parameters. All plots were irrigated uniformly until 2 weeks before harvest. Differential treatments were then imposed ranging from a complete cut-off of irrigation to full irrigation through the harvest period. Preharvest drip-irrigation management treatments were (i) complete irrigation cut-off, dry (D), (ii) normal irrigation based on class A pan and percentage cover (C), (iii) 75% of normal irrigation, C (IR1), (iv) 50% of normal irrigation, C (IR2), and (v) 25% of normal irrigation, C (IR3). Normal irrigation (control, C) was created by irrigating plants once every 2 days at 100% A pan (Epan) evaporation. No irrigation (D) and IR3 treatments caused reductions in most parameters measured, except water-soluble dry matter concentrations (SDM) in fruit compared with other treatments. There were no significant differences between C, IR1, and IR2 treatments in normal growth parameters or leaf nutrient composition. Fruit size and SDM were both significantly affected by late-season irrigation management; individual fruit weight was significantly reduced and SDM increased even in the IR2 and IR3 treatments compared with control values. Fruit yield was not affected significantly by reduced water application except in the D treatment. These results clearly indicate that reduced preharvest irrigation was partially detrimental; a small reduction in irrigation (IR1) had little or no effect but 50% or less of normal irrigation, while not reducing overall fruit yield, resulted in smaller fruits.
10
Giotakis, A. I., E. M. Karow, M. O. Scheithauer, R. Weber, and H. Riechelmann. "Saline irrigations following sinus surgery - a controlled, single blinded, randomized trial." Rhinology journal 54, no. 4 (2016): 302–10. http://dx.doi.org/10.4193/rhino16.026.
Full textAbstract:
Background: Chronic rhinosinusitis (CRS) is a common health problem. If medical treatment fails, endonasal sinus surgery is a valuable treatment option. A thorough postsurgical treatment is needed including, among others, nasal saline irrigations (NSI). In this prospective, controlled, single blinded, randomized trial, we aimed to evaluate efficacy of nasal saline irrigations following endonasal sinus surgery in CRS-patients with nasal polyps. Methodology: We examined patient's nasal symptoms, general quality of life and postoperative condition of the mucosa. We also investigated whether or not NSI reduced the number of missed workdays after surgery (MWD). Patients were randomized into an irrigation and non-irrigation arm. Results: Following treatment, mean nasal sum-score in the irrigation arm was 4.4 and in the non-irrigation arm it was 6.3. Accordingly, mean general sum-score in the irrigation arm was 2.5 and in the non-irrigation arm 4.8. Thus, nasal irrigation led to a more pronounced improvement of nasal and general symptoms than in the non-irrigation arm. No differences were observed in postoperative condition of mucosa or number of MWD. Conclusions: Nasal irrigation improves symptoms score after ESS in patients with CRSwNP.
11
EAJAZ AHMAD DAR, AJMER SINGH BRAR, MUSHTAQ AHMAD, MOHAMMAD AMIN BHAT, and TODARMAL POONIA. "Growth, yield and economics of drip-irrigated wheat (Triticum aestivum L.) as influenced by timing and depth of irrigation water application." Indian Journal of Agronomy 64, no. 3 (2001): 360–67. http://dx.doi.org/10.59797/ija.v64i3.5284.
Full textAbstract:
An experiment was conducted during 201415 and 201516 at Ludhiana, Punjab, to study the effect of time and depth of irrigation water on growth, yield and economics of drip-irrigated wheat (Triticum aestivum L.). The ex- periment was conducted in a split-plot design comprising 3 irrigation timings [3 irrigations at crown-root initiation, booting and milking (CBM); 4 irrigations at crown-root initiation, tillering, booting and milking (CTBM) and 5 irriga- tions at crown-root initiation, tillering, booting, milking and dough (CTBMD)] in main plots and 4 irrigation depth [50 mm at each stage in 2 splits (2 SP); 75 mm at each stage in 3 splits (3SP); 100 mm at each stage in 4 splits (4SP); 75 mm at each stage conventionally (CP)] in subplots, replicated 4 times. Five irrigations at CTBMD resulted in significantly higher growth and yield attributes as well as grain yield than 3 irrigations at CBM; however, it was at par with 4 irrigations at CTBMD. The grain yield reduced by 12.9% and 13.6% in CBM than CTBMD during 2014 15 and 201516, respectively. Four splits of 100 mm irrigation depth resulted in significantly higher growth and yield attributes as well as grain yield than 2 splits and CP. Grain yield reduced by 10.7 and 10.2% in CP than 4 SP during 201415 and 201516, respectively. Though grain yield in 2 SP and CP was similar, there was water sav- ing of 33.3% in 2 SP as compared to CP. The highest net returns (35.8 103 /ha) and benefit: cost ratio (1.90) were recorded with application of 5 irrigations at CTBMD. Similarly, the highest net returns (34.7 103 /ha) were recorded with water application in 4 irrigation splits (4SP), but benefit: cost ratio (1.89) was the highest with 3 irri- gation splits (3 SP).
12
Li, Wei, Junliang Yin, Dongfang Ma, et al. "Acceptable Salinity Level for Saline Water Irrigation of Tall Wheatgrass in Edaphoclimatic Scenarios of the Coastal Saline–Alkaline Land around Bohai Sea." Agriculture 13, no. 11 (2023): 2117. http://dx.doi.org/10.3390/agriculture13112117.
Full textAbstract:
Saline water irrigation contributes significantly to forage yield. However, the acceptable salinity levels for saline water irrigation of tall wheatgrass remains unclear. In this study, field supplemental irrigations of transplanted-tall wheatgrass with saline drainage waters having salinities of electrical conductivity (ECw) = 2.45, 4.36, 4.42, and 5.42 dS m−1 were conducted to evaluate the effects of saline water irrigation on forage yield and soil salinization. In addition, the effects of plastic film mulching, fertilization, and saline water irrigation on sward establishment of seed-propagated tall wheatgrass were determined. Finally, a pot experiment was carried out to confirm the above field results. The results showed that two irrigations with ECw = 2.45 and 4.36 dS m−1 saline waters produced the highest dry matter yield, followed by one irrigation with ECw = 4.42 or 5.42 dS m−1. After rainfall leaching, the soil EC1:5 was reduced by 41.7–79.3% for the saline water irrigation treatments. In combination with saline water irrigation, plastic film mulching promoted sward establishment and enhanced the plant height and dry matter yield of seed-propagated tall wheatgrass, while fertilization played a marginal role. However, two irrigations with ECw = 7.13 and 4.36 dS m−1 saline waters resulted in rates of 3.2% and 16.0% of dead plants under the mulching and no mulching conditions, respectively. Furthermore, a pot experiment demonstrated that irrigation with ECw = 5.79 dS m−1 saline water led to the lowest reduction in forage yield and the highest crude protein content in leaves. However, the plants irrigated with ECw ≥ 6.31 dS m−1 saline water enhanced soil salinity and reduced the plant height, leaf size, and gas exchange rate. Conclusively, one irrigation with ECw ≤ 5.42 dS m−1 and SAR ≤ 36.31 saline water at the end of April or early May could be acceptable for tall wheatgrass production and minimize the soil salinization risk in the coastal saline–alkaline land around the Bohai Sea.
13
Chauhan, Bhagirath S. "Growth Response of Itchgrass (Rottboellia cochinchinensis) to Water Stress." Weed Science 61, no. 1 (2013): 98–103. http://dx.doi.org/10.1614/ws-d-12-00060.1.
Full textAbstract:
Greenhouse studies were conducted to evaluate the growth response of itchgrass to water stress. Itchgrass plants produced the greatest aboveground biomass and seeds at 75% of field capacity and these parameters at 50 and 100% of field capacity were similar. With further increase in water stress, seed production was sharply reduced, but itchgrass was still able to produce an average of 63 and 9 seeds plant−1at 25 and 12.5% of field capacity, respectively. Itchgrass plants responded to increasing water stress with increased leaf weight ratio; it was 2.5 times greater at 12.5% of field capacity than at 100% of field capacity. In another study, compared with daily irrigation, intervals of 9 d between irrigations reduced aboveground biomass of itchgrass by 27% and 12-d intervals reduced aboveground biomass by 67%. Compared with the daily irrigation regime, itchgrass seed production was reduced by 61% at intervals of 12 d between irrigations; however, the weed plants produced a considerable number of seeds (153 seeds plant−1) at the 12-d intervals. The ability of itchgrass to produce biomass and seeds under water stressed conditions necessitates strategies that minimize weed survival while maximizing irrigation efficiency for the crop at the same time.
14
Chen, Taotao, Erping Cui, Ke Sun, et al. "Multiple Nitrogen Sources Application Inhibits Increasing Ammonia Volatilization Under Reducing Irrigation." Agronomy 14, no. 12 (2024): 2927. https://doi.org/10.3390/agronomy14122927.
Full textAbstract:
Farmland ammonia (NH3) volatilization is an important source of NH3, and the application of chemical fertilizer nitrogen (N) is the main factor affecting NH3 volatilization. The optimal substitution of chemical fertilizer with organic manure and straw reportedly reduces NH3 volatilization, while reducing irrigation increases NH3 volatilization. However, the combined effect of nitrogen fertilizer substitution and reducing irrigation on NH3 volatilization and the role of microorganisms in this process remains unclear. In a soil column experiment, NH3 volatilization and microbial composition were measured under both multiple N sources and different irrigation levels by the vented-chamber method and metagenomic sequencing. The results revealed that multiple N sources application reduced cumulative NH3 volatilization by 16.5–75.4% compared to single chemical fertilizer application, and the decreasing trend of NH3 volatilization under reduced irrigation conditions was greater. Microorganisms had a more important effect on NH3 volatilization of reduced irrigation than conventional irrigation. The abundance of nirA, arcC, E3.5.1.49, and E3.5.5.1 (ammonia-producing) genes varied significantly at the two irrigation levels. Overall, multiple N sources could inhibit NH3 volatilization increasing under reducing irrigation compared to a single chemical fertilizer. Our findings contribute valuable insights into the combined effect of reduced irrigation and multiple N sources on NH3 volatilization.
15
Feibert, Erik B. G., Clinton C. Shock, and Lamont D. Saunders. "A Comparison of Onion Production Under Sprinkler, Subsurface Drip, and Furrow Irrigation." HortScience 30, no. 4 (1995): 839A—839. http://dx.doi.org/10.21273/hortsci.30.4.839a.
Full textAbstract:
Onion yield and grade were compared under sprinkler, subsurface drip, and furrow irrigation in 1992, 1993, and 1994. Furrow-irrigated onions were planted on two double rows on 1.12-m-wide beds at 352,000 seeds/ha. Sprinkler- and drip-irrigated onions were planted in nine single rows on a 2.24-m-wide bed at 432,100 seeds/acre. Drip plots had three drip lines buried 0.10 m deep in each 2.24-m bed. Soil water potential at 0.2-m depth was measured by tensiometers and granular matrix sensors (Watermark Model 200SS, Irrometer Co., Riverside, Calif.). Furrow irrigations were started when the soil water potential at the 0.2-m depth reached –25 kPa. Drip-irrigated onions had soil water potential at the 0.2-m depth kept wetter than –25 kPa by daily replacement of crop evapotranspiration (Etc). Sprinkler irrigations were started when the accumulated Etc reached 25 mm. Sprinkler irrigation resulted in significantly higher onion yield than furrow irrigation in 1993 and 1994. Sprinkler irrigation resulted in higher marketable onion yield than furrow irrigation in 1993. Drip irrigation resulted in significantly higher onion yield than furrow irrigation every year. Drip irrigation resulted in higher marketable onion yield than furrow irrigation in 1992 and 1994. Marketable onion yield was reduced in 1993 due to rot during storage.
16
Choi, C., I. Song, S. Stine, J. Pimentel, and C. Gerba. "Role of irrigation and wastewater reuse: comparison of subsurface irrigation and furrow irrigation." Water Science and Technology 50, no. 2 (2004): 61–68. http://dx.doi.org/10.2166/wst.2004.0089.
Full textAbstract:
Two different irrigation systems, subsurface drip irrigation and furrow irrigation, are tested to investigate the level of viral contamination and survival when tertiary effluent is used in arid and semi-arid regions. The effluent was injected with bacteriophages of PRD1 and MS2. A greater number of PRD1 and MS2 were recovered from the lettuce in the subsurface drip-irrigated plots as compared to those in the furrow-irrigated plots. Shallow drip tape installation and preferential water paths through cracks on the soil surface appeared to be the main causes of high viral contamination in subsurface drip irrigation plots, which led to the direct contact of the lettuce stems with the irrigation water which penetrated the soil surface. The water use efficiency of the subsurface drip irrigation system was higher than that of the furrow irrigation system. Thus, subsurface drip irrigation is an efficient irrigation method for vegetable crops in arid and semi-arid regions if viral contamination can be reduced. Deeper installation of drip tapes, frequent irrigations, and timely harvests based on cumulative heat units may further reduce health risks by ensuring viral die-off under various field conditions.
17
Shock, C. C., E. B. G. Feibert, and L. D. Saunders. "Potato Yield and Quality Response to Deficit Irrigation." HortScience 33, no. 4 (1998): 655–59. http://dx.doi.org/10.21273/hortsci.33.4.655.
Full textAbstract:
Four potato (Solanum tuberosum L.) varieties were grown under four season-long sprinkler irrigation treatments in three successive years (1992-94) on silt loam soil in eastern Oregon. The check treatment was irrigated when soil water potential (SWP) at the 0.2-m depth reached -60 J·kg-1 and received at most the accumulated evapotranspiration (Etc) to avoid exceeding the water-holding capacity of the top 0.3 m of soil. The three deficit irrigation treatments were irrigated when SWP at the 0.2-m depth reached -80 J·kg-1 and had the following percent of the accumulated Etc applied at each irrigation: 1) 100%, 2) 70%, and 3) 70% during tuber bulking with 50% thereafter. Based on regression of applied water over 3 years, potatoes lost both total and U.S. No. 1 yields when irrigations were reduced. Based on regression on applied water, when irrigation was reduced gross revenues declined more than production costs, resulting in a reduction in profits. Leaching potential, as determined by the SWP treatments, was low for all treatments. The results of the study suggest that deficit irrigation of potatoes in the Treasure Valley of Oregon would not be a viable management tool, because the small financial benefits would not offset the high risks of reduced yields and profits from the reduced water applications.
18
Mundy, GN, HR Jones, and WK Mason. "Nitrogen fixation activity by white clover pastures during flood irrigation cycles." Australian Journal of Agricultural Research 39, no. 3 (1988): 409. http://dx.doi.org/10.1071/ar9880409.
Full textAbstract:
The effect of flood irrigation on clover nitrogen fixation (acetylene reduction activity) was investigated in unfertilized pastures and pastures fertilized with 100 kg N/ha as NH4N03. During the experiment acetylene reduction activities were monitored between successive flood irrigations. The rate of ethylene production increased with decreasing soil water content, peaking 13 days after irrigation. Measured nodule activity then declined, possibly owing to water stress. Nitrogen fertilizer reduced acetylene reduction activities to about half that of the unfertilized pastures. For most of the irrigation cycle acetylene reduction by the pasture was below the measured maximum.
19
Mundy, GN, HR Jones, and WK Mason. "Corrigendum - Nitrogen fixation activity by white clover pastures during flood irrigation cycles." Australian Journal of Agricultural Research 39, no. 3 (1988): 409. http://dx.doi.org/10.1071/ar9880409c.
Full textAbstract:
The effect of flood irrigation on clover nitrogen fixation (acetylene reduction activity) was investigated in unfertilized pastures and pastures fertilized with 100 kg N/ha as NH4N03. During the experiment acetylene reduction activities were monitored between successive flood irrigations. The rate of ethylene production increased with decreasing soil water content, peaking 13 days after irrigation. Measured nodule activity then declined, possibly owing to water stress. Nitrogen fertilizer reduced acetylene reduction activities to about half that of the unfertilized pastures. For most of the irrigation cycle acetylene reduction by the pasture was below the measured maximum.
20
Raymond, Michael A., Jeffrey C. Stark, and Glen A. Murray. "Final Irrigation Timing for Spring Pea Seed Production." Journal of the American Society for Horticultural Science 113, no. 6 (1988): 827–30. http://dx.doi.org/10.21273/jashs.113.6.827.
Full textAbstract:
Abstract Field studies were conducted in 1985 and 1986 to evaluate the effects of final irrigation timing on spring pea (Pisum sativum L. cv. Mars) seed yield, percent germination, and distribution of yield within the canopy. Final irrigations were applied on 10 dates during the period from 10% bloom to early senescence. Total seed yield did not increase with irrigations applied past 237 degree-days (base 4.5°C) after bloom (DDAB) in 1985 or 366 DDAB in 1986. However, the highest germination percentages and viable seed yields in 1985 and 1986 were obtained when final irrigations were applied at 487 and 450 DDAB, respectively. In 1986, total seed yield, percent germination, and viable seed yield throughout the canopy increased when the final irrigation was applied at 366 or 588 DDAB compared to earlier final irrigations. Viable seed yield reductions for the early irrigation cut-off dates resulted primarily from reduced numbers of pods per plant, and seeds per pod in the upper canopy (nodes 14 to 17) and decreased germination of seed produced throughout the canopy. We conclude that application of the final irrigation at ≈450 to 500 DDAB (usually 2 weeks after final pod set) should produce viable seed yields similar to those obtained with continued irrigation through early senescence.
21
Fare, Donna C., Charles H. Gilliam, Gary J. Keever, and John W. Olive. "Cyclic Irrigation Reduces Container Leachate Nitrate-nitrogen Concentration." HortScience 29, no. 12 (1994): 1514–17. http://dx.doi.org/10.21273/hortsci.29.12.1514.
Full textAbstract:
Two experiments were conducted to evaluate the effects of cyclic irrigation on leachate NO3-N concentration, container leachate volume, total effluent volume, and growth of Ilex crenata Thunb. `Compacta'. In Expt. 1, container leachate volume was reduced 34% when 13 mm of water was applied in three cycles compared to continuous irrigation of 13 mm per unit time. Forty-nine percent less container leachate volume was collected from a continuous application of 8 mm than from that of 13 mm water. In Expt. 2, container leachate volume was reduced 71% when 6 mm was applied in a single application over 30 minutes compared to 13 mm applied continuously for 1 hour. Total effluent was reduced by 14% and 10% in Expts. 1 and 2, respectively, when 13-mm irrigation was applied in three cycles compared to one continuous irrigation. Container leachate NO3-N concentrations from cyclic irrigation were generally less than leachate NO3-N concentrations from continuous irrigation treatments. The percentage of applied N leached as NO3-N ranged from 46% when 13-mm irrigation was applied in three cycles to 63% when 13-mm irrigation was applied in a single cycle. Leachate NO3-N concentration was reduced as irrigation volume was reduced from 13 to 6 mm in Expt. 2. Percentage of applied N leached as NO3-N was 63%, 56%, and 47% when 13-mm irrigation was applied in one, two, and three cycles, respectively, compared to 19%, 16%, and 15% when 6-mm irrigation was applied in one, two, and three cycles, respectively. `Compacta' holly shoot and root growth were minimally affected by cyclic irrigation or irrigation volume.
22
Shem-Tov, Shachar, Steve A. Fennimore, and W. Thomas Lanini. "Weed Management in Lettuce (Lactuca Sativa) with Preplant Irrigation." Weed Technology 20, no. 4 (2006): 1058–65. http://dx.doi.org/10.1614/wt-05-085.1.
Full textAbstract:
During dry weather, preplant irrigation of raised beds followed by shallow tillage to create a smooth planting bed is necessary to establish a good lettuce stand. Depletion of germinable weed seeds in the top 5 cm of soil by the sequence of preplant irrigation, followed 7 to 14 d later by shallow tillage to prepare a seedbed, reduces weed density in the subsequent crop. Preplant irrigation and tillage reduces weed density and, when used together with preplant herbicide, provides effective weed control in the cropping season. Preplant and in-crop weed densities resulting from furrow or sprinkler preplant irrigation, followed by shallow tillage and lettuce planting 7 or 14 d later, were compared with the no preplant irrigation control. During the 14-d preplant period, up to 127 weeds/m2emerged and were removed by shallow tillage before crop planting. Preplant irrigation and shallow tillage reduced in-crop weed density by up to 77% and reduced hand-weeding and crop-thinning time by up to 50% compared with the no preplant irrigation and no herbicide control. Delaying tillage for 14 d following preplant irrigation provided sufficient time for adequate heat unit accumulation (>120 growing degree days, base 10 C), allowing for many weeds to germinate and be killed by shallow tillage. However, 7 d between preplant irrigation and tillage resulted in less heat unit accumulation (<50 growing degree days, base 10 C) and less weed germination before tillage. Preplant irrigation together with pronamide at either 0.67 or 1.34 kg ai/ha reduced weed density compared with the no preplant irrigation. Effective use of preplant irrigation and preplant weed removal may increase the consistency of weed control with lower pronamide rates. Preplant irrigation followed by shallow tillage is an effective cultural practice to control in-crop weeds for conventional lettuce production.
23
Shehata, Rania S., Hanan Moawad, Hanan Z. Amer, Syed A. Hasan, Rehab A. Dawoud, and Amira A. Kasem. "Mitigate Environmental Stress and Enhance Crop Productivity." Biotechnology Journal International 29, no. 3 (2025): 93–103. https://doi.org/10.9734/bji/2025/v29i3780.
Full textAbstract:
A field experiment was conducted during the wheat-growing season on a clay-loam soil to investigate the interaction between irrigation management, sowing dates, and winter wheat productivity. A split-plot design tested three planting dates (PD₁: 15 November, PD₂: 30 November, PD₃: 15 December) and three irrigation levels (Irr₁: five irrigations, Irr₂: four, Irr₃: three irrigations). Results revealed that early sowing (PD₁) under full irrigation (Irr₁) maximized grain yield (6.8 tons/ha) and 1000-grain weight (49.3 g) but required the highest water applied (5,608 m³/ha). Conversely, PD₃ with reduced irrigation (Irr₃) conserved water (3,282 m³/ha) but incurred yield penalties (4.6 t/ha grain). Critically, PD₂ under Irr₂ achieved 94% of PD₁’s yield with 18% less water, highlighting its viability for balancing productivity and sustainability. Water productivity (WP) improved under water-saving strategies, with PD₃Irr₃ yielding the highest WP (1.41 kg/m³). The findings underscore that planting date (mid-November) is more suitable for yield than maximal irrigation, offering actionable strategies for farmers in water-scarce regions to enhance climate resilience while safeguarding food security.
24
Ahmed, Zeeshan, Junhe Liu, Ejaz Ahmad Waraich, et al. "Differential physio-biochemical and yield responses of Camelina sativa L. under varying irrigation water regimes in semi-arid climatic conditions." PLOS ONE 15, no. 12 (2020): e0242441. http://dx.doi.org/10.1371/journal.pone.0242441.
Full textAbstract:
Camelina sativa L. is an oilseed crop with wide nutritional and industrial applications. Because of favorable agronomic characteristics of C. sativa in a water-limiting environment interest in its production has increased worldwide. In this study the effect of different irrigation regimes (I0 = three irrigations, I1 = two irrigations, I2 = one irrigation and I3 = one irrigation) on physio-biochemical responses and seed yield attributes of two C. sativa genotypes was explored under semi-arid conditions. Results indicated that maximum physio-biochemical activity, seed yield and oil contents appeared in genotype 7126 with three irrigations (I0). In contrast water deficit stress created by withholding irrigation (I1, I2 and I3) at different growth stages significantly reduced the physio-biochemical activity as well as yield responses in both C. sativa genotypes. Nonetheless the highest reduction in physio-biochemical and yield attributes were observed in genotype 8046 when irrigation was skipped at vegetative and flowering stages of crop (I3). In genotypic comparison, C. sativa genotype 7126 performed better than 8046 under all I1, I2 and I3 irrigation treatments. Because 7126 exhibited better maintenance of tissue water content, leaf gas exchange traits and chlorophyll pigment production, resulting in better seed yield and oil production. Findings of this study suggest that to achieve maximum yield potential in camelina three irrigations are needed under semi-arid conditions, however application of two irrigations one at flowering and second at silique development stage can ensure an economic seed yield and oil contents. Furthermore, genotype 7126 should be adopted for cultivation under water limited arid and semi-arid regions due to its better adaptability.
25
Wood, Clinton Wilks, Jeff Gore, Angus Catchot, Don Cook, Darrin M. Dodds, and Jason Krutz. "Impact of Irrigation Timing on Tarnished Plant Bug Populations and Yield of Cotton." Journal of Cotton Science 23, no. 1 (2019): 21–27. http://dx.doi.org/10.56454/ycur2379.
Full textAbstract:
The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), is the most significant insect pest of cotton, Gossypium hirsutum (L.), in the mid-southern United States (Arkansas, Louisiana, Mississippi, Missouri, and Tennessee). Past research has shown the impact that planting date, nitrogen rate, and variety selection has on tarnished plant bug populations, but a paucity of data exists on the effect irrigation timing has on tarnished plant bug. Experiments were conducted at the Mississippi State University Delta Research and Extension Center in Stoneville, MS to determine if insecticide applications targeting the tarnished plant bug could be reduced in response to irrigation timings. Treatments were in a strip-block arrangement, with the main plot factor being irrigations initiated at squaring, first flower, peak flower, and a non-irrigated control. The sub-plot factor was tarnished plant bug management that consisted of insecticide applications made weekly, at threshold, and a non-treated control. Overall, insecticide applications for tarnished plant bug increase yield. Irrigation initiated at squaring resulted in tarnished plant bugs exceeding the recommended treatment threshold significantly more than when irrigations were initiated later in the growing season. Also, when irrigation was postponed until peak flower, no yield loss or delay in maturity was observed. These results indicate that irrigation timing could be a potential cultural control practice that reduces the number of insecticide applications targeting tarnished plant bug populations in Mid-South cotton.
26
Stevens, Rob M., Gordon Harvey, and Gerry Davies. "Separating the Effects of Foliar and Root Salt Uptake on Growth and Mineral Composition of Four Grapevine Cultivars on their Own Roots and on `Ramsey' Rootstock." Journal of the American Society for Horticultural Science 121, no. 3 (1996): 569–75. http://dx.doi.org/10.21273/jashs.121.3.569.
Full textAbstract:
The effect of foliar salt uptake on potted grapevine growth and ionic composition was investigated in a split plot trial. The main plot was a 2 × 2 factorial consisting of separately irrigating the roots and foliage with nonsaline or saline (25 mm NaCl) solutions. The subplot was a 4 × 2 factorial consisting of four grape (Vitis vinifera) cultivars on their own roots or `Ramsey' (Vitis champini) rootstock. Saline foliar irrigation over 27 weeks reduced total vine growth by 14% while saline root irrigation had no effect. Leaf Na and Cl concentrations were elevated by saline foliar and saline root irrigation. The increases in concentrations with saline foliar irrigation were four times those with saline root irrigation. Leaf K concentration was reduced by saline foliar irrigation and increased by saline root irrigation. With saline irrigation of roots and foliage the Cl and Na levels were highest in the leaves of `Shiraz', but with saline irrigation of only the roots `Sultana' had the higher levels of leaf Cl and `Shiraz' the highest leaf Na. Saline foliar irrigation had no effect on the concentrations of Na, Cl, and K in the roots. In `Sultana', saline foliar irrigation did not affect the leaf concentrations of N, NO3-N, P, Mg, Zn, and Cu. It increased the leaf concentration of Fe, and decreased that of Mn. Rootstock modified the effect of salinity on Fe concentrations. The B concentration was decreased by saline irrigation of either the foliage or the roots, but not by saline irrigation of both. In roots, saline foliar irrigation increased B in own-rooted vines, but not in those on `Ramsey' rootstock.
27
Dhage, Sagar, and Ravi Patil. "Strategies to cope with warming and reduced rainfall in green gram for northern transition zone of Karnataka, India." Environment Conservation Journal 24, no. 1 (2023): 28–34. http://dx.doi.org/10.36953/ecj.12562354.
Full textAbstract:
South West monsoon has become more erratic and unpredictable in the northern Transition Zone of Karnataka and in the coming decades this will continue further with warming. To cope with change in climate, agronomic adaptation strategies (optimum sowing window and application of irrigation at critical stages) are required to maintain higher yields of greengram. As a result, the DSSAT model was used to investigate the influence of climate change on greengram. The study included a combination of two temperature (+1 and +2 °C) and two reduced rainfall (˗10 and ˗20 %) scenarios in comparison with the baseline scenario (i.e., current climate). These scenarios were built for 32 years using historical weather data from 1985-2016. With regard to adaptation strategies, six dates of sowing; starting from June 1st week to July 2nd week at a weekly interval and four irrigation treatments each of 60 mm; one at pre-flowering stage, one at pod formation stage, one each at pre-flowering and pod formation stages, and no irrigation (rainfed) were included. Between sowing dates, the model's simulation of average grain yield across 32 years revealed that, 3rd (513 kg ha-1) and 4th (508 kg ha-1) week of June were found to be optimum under future climate. Irrigation at any of the critical stages increased the yield, but largest positive yield response was replicated with two irrigations: one at pre-flowering and the other during the pod formation stage (556 kg/ha). This study clearly showed that under future climates of 1 to 2 ℃ warming with reduced rainfall scenarios (-10 % & -20 %), sowing on 3rd and 4th week of June is best one, providing two irrigations (60 mm each) one at pre-flowering and the other at pod formation stage would more than compensate the loss in yield projected under changing climates in coming decades.
28
Lohr, Virginia I., and Caroline H. Pearson-Mims. "ORGANIC MATTER INCORPORATION AND IRRIGATION RATES FOR BEDDING PLANTS." HortScience 26, no. 6 (1991): 716G—716. http://dx.doi.org/10.21273/hortsci.26.6.716g.
Full textAbstract:
The effect of organic matter addition and irrigation rates on the growth of bedding plants was found to vary with species. Marigold and sweet alyssum were field-grown with or without added peat moss under normal or 50 percent reduced irrigation. Regardless of organic matter treatment, marigolds with reduced irrigation were shorter than those with normal irrigation. Under normal irrigation, adding organic matter had no effect on height. Under reduced irrigation, incorporating organic matter was beneficial to marigolds: plants in these plots were 10% taller than plants under reduced irrigation without added organic matter. Sweet alyssum, a relatively drought-tolerant plant, was wider under reduced than under normal irrigation. It did not benefit from added organic matter: plants grown with added organic matter were 17% narrower than those without added organic matter, regardless of irrigation level. Blanket recommendations to add organic matter to conserve water should be avoided.
29
Pei, Lisi, Nathan Moore, Shiyuan Zhong, Anthony D. Kendall, Zhiqiu Gao, and David W. Hyndman. "Effects of Irrigation on Summer Precipitation over the United States." Journal of Climate 29, no. 10 (2016): 3541–58. http://dx.doi.org/10.1175/jcli-d-15-0337.1.
Full textAbstract:
Abstract Irrigation’s effects on precipitation during an exceptionally dry summer (June–August 2012) in the United States were quantified by incorporating a novel dynamic irrigation scheme into the Weather Research and Forecasting (WRF) Model. The scheme is designed to represent a typical application strategy for farmlands across the conterminous United States (CONUS) and a satellite-derived irrigation map was incorporated into the WRF-Noah-Mosaic module to realistically trigger the irrigation. Results show that this new irrigation approach can dynamically generate irrigation water amounts that are in close agreement with the actual irrigation water amounts across the high plains (HP), where the prescribed scheme best matches real-world irrigation practices. Surface energy and water budgets have been substantially altered by irrigation, leading to modified large-scale atmospheric circulations. In the studied dry summer, irrigation was found to strengthen the dominant interior high pressure system over the southern and central United States and deepen the trough over the upper Midwest. For the HP and central United States, the rainfall amount is slightly reduced over irrigated areas, likely as a result of a reduction in both local convection and large-scale moisture convergence resulting from interactions and feedbacks between the land surface and atmosphere. In areas downwind of heavily irrigated regions, precipitation is enhanced, resulting in a 20%–100% reduction in the dry biases (relative to the observations) simulated over a large portion of the downwind areas without irrigation in the model. The introduction of irrigation reduces the overall mean biases and root-mean-square errors in the simulated daily precipitation over the CONUS.
30
Mills, Tessa M., Jianming Li, and M. Hossein Behboudian. "Physiological Responses of Gold Kiwifruit (Actinidia chinensis) to Reduced Irrigation." Journal of the American Society for Horticultural Science 134, no. 6 (2009): 677–83. http://dx.doi.org/10.21273/jashs.134.6.677.
Full textAbstract:
Information on water relations and water stress physiology of Actinidia chinensis Planch. is scant. We aimed at providing such information by exposing potted 1-year-old plants to reduced irrigation in a glasshouse. The treatments were control (C) receiving sufficient water to replace 100% of evapotranspiration, early (E) reduced irrigation for 13 days earlier in the experiment, late (L) reduced irrigation for 13 days later in the experiment, and recovery (R) undergoing E and L with 5 days of full irrigation in between to recover from E. All plants were fully watered between early and late episodes of reduced irrigation. Soil volumetric water content was lower in E, L, and R compared with C, leading to lower leaf water potential, photosynthetic rate (Pn), and stomatal conductance (gs). Pn was lower in the reduced irrigation vines only when gs was below 0.1 mol·m−2·s−1. High leaf temperature in the glasshouse imposed nonstomatal limitations to photosynthesis as indicated by elevated internal leaf CO2 concentrations (Ci). Following rewatering, the stressed vines showed rapid recovery of leaf water potential and photosynthesis. However, Ci and gs were slower to respond. There was an indication of osmotic adjustment in leaves under reduced irrigation. Discrimination against 13CO2 was the same among the treatments. A. chinensis had better stomatal control under water stress compared with Actinidia deliciosa, for which some information is available. Water stress history in A. chinensis encouraged more drought resistance in the subsequent water stress period, but this was not sustained. Although field performance of A. chinensis under water stress is expected to be better than what we have presented here, long periods of deficit irrigation for this species cannot be recommended.
31
Reid, K., J. Sisneroz, D. Fujino, and L. Oki. "Evaluating landscape rose performance on reduced irrigation." Acta Horticulturae, no. 1232 (February 2019): 151–56. http://dx.doi.org/10.17660/actahortic.2019.1232.23.
Full text
32
C. D. Yonts, J. A. Smith, and J. E. Bailie. "Furrow Irrigation Performance In Reduced-Tillage Systems." Transactions of the ASAE 34, no. 1 (1991): 0091. http://dx.doi.org/10.13031/2013.31629.
Full text
33
Marouelli, Waldir A., Washington L. C. Silva, and Celso L. Moretti. "Production, quality and water use efficiency of processing tomato as affected by the final irrigation timing." Horticultura Brasileira 22, no. 2 (2004): 226–31. http://dx.doi.org/10.1590/s0102-05362004000200013.
Full textAbstract:
A field study was conducted under "Cerrado" conditions of Brazil, during the dry season of 2000, to evaluate the effect of final irrigation timing on fruit yield, quality, and the use of water in processing tomatoes. Fourteen irrigation cut-off times were employed, 7 days apart, from blossom until harvest. Maximum marketable fruit yield took place when irrigations were cut-off 21 days before harvest (10% of red fruit). Total soluble solids content was linearly reduced at the rate of 0.34 ºBrix per each additional 10 days period of irrigation. Maximum pulp yield was obtained ending irrigation 34 days before harvest (20% of plants holding at least one red fruit). The highest tomato water use efficiency was observed when the last irrigation occurred between 37 and 45 days after blossom, respectively for fruit and pulp yield.
34
A.K. DIXIT, SUNIL KUMAR, ARVIND K. RAI, and T. KIRAN KUMAR. "Tillage and irrigation management in chickpea (Cicer arietinum)fodder sorghum (Sorghum bicolor) cropping system under semi-arid conditions of India." Indian Journal of Agronomy 59, no. 4 (2001): 575–80. http://dx.doi.org/10.59797/ija.v59i4.4572.
Full textAbstract:
A field experiment was conducted at Jhansi during the winter season (rabi) of 200910 to rainy season (kharif) of 2012 to study the impact of tillage practices and irrigation management on chickpea (Cicer arietinum L.) and their carry-over effects on succeeding fodder sorghum [Sorghum bicolour (L.) Moench]. Reduced tillage recorded 1.74 t/ha grain yield of chickpea and was on a par with conventional tillage. However, reduced tillage (57.7%) and zero tillage (57.4%) recorded significantly higher harvest index than conventional tillage (55.2%). Similarly, appli- cation of 2 irrigations to chickpea recorded higher grain yield (1.90 t/ha) and system productivity in terms of chickpea-equivalent yield (4.00 t/ha) but application of only 1 irrigation recorded higher irrigation water-use effi- ciency (295 kg grain /ha-cm). Significantly higher plant height, plant population, grains per pod, 100-seed weight, weeds count and weed dry matter were also recorded in irrigated plots than unirrigated control. Higher system productivity in terms of chickpea-equivalent yield (CEY) was recorded under reduced tillage (3.85 t/ha) and con- ventional tillage (3.90 t/ha) than zero tillage. Reduced tillage and 2 irrigations in chickpea recorded higher net re- turns i.e. 33.1 103 and 34.6 103/ha and benefit: cost ratio i.e. 0.85 and 0.87, from whole system. After 3 years, the bulk density of 1530 cm soil depths was lower in zero tillage (1.34 Mg/m3) than conventional (1.40 Mg/ m3) and reduced tillage (1.37 Mg/m3). Similarly, significantly higher values of total organic carbon (10.31 g/kg), electrical conductivity (0.20 dS/m), available N (260.1 kg/ha) and available K (197.7 kg/ha) were recorded under zero tillage. Application of 2 irrigations recorded lower electrical conductivity (0.152 dS/m) and available N (237.0 kg/ha) and higher available K (189.8 kg/ha) status.
35
Trout, Thomas J., Terry A. Howell, Marshall J. English, and Derrel L. Martin. "Deficit Irrigation Strategies for the Western U.S." Transactions of the ASABE 63, no. 6 (2020): 1813–25. http://dx.doi.org/10.13031/trans.14114.
Full textAbstract:
HighlightsDeficit irrigation may maximize net income when irrigation water supplies are limited or expensive.Water production functions are used with economic parameters to maximize net income with deficit irrigation.Net income may be insensitive to the amount of deficit irrigation if production costs are appropriate for anticipated yield.Deficit irrigation increases risk.Abstract. Competition for, regulation of, and depletion of water supplies in the western U.S. has resulted in reduced water available for irrigating crops. When the water supply is expensive or inadequate to meet full crop water requirements, deficit irrigation (DI) may maximize net income (NI) by reducing use of expensive water or irrigating more land with limited irrigation supplies. Managed DI entails rational planning and strategic water allocation to maximize NI when water supplies are constrained. Biophysical and economic relationships were used to develop NI models for DI and determine water allocation strategies that maximize NI under three types of water supply constraints. The analyses determined that potential benefits of DI are greatest when water is expensive, irrigation efficiency is low, the water supply is flexible, and rainfed production is not economically viable. When production costs are appropriate for anticipated yields, NI is less sensitive to DI planning decisions. Deficit irrigation will become more important as irrigation water supplies continue to decline in the future. Net income analysis can assist growers in making rational DI decisions. Keywords: Deficit irrigation, Economic analysis, Irrigation management, Net income, Optimization, Water productivity.
36
K. D. SHARMA and R. K. PANNU. "Physiological response of wheat (Triticum durum L.) to limited irrigation." Journal of Agrometeorology 10, no. 2 (2008): 113–17. http://dx.doi.org/10.54386/jam.v10i2.1188.
Full textAbstract:
A field study was conducted at CCS Haryana Agricultural University, Hisar, during two consecutive rabi seasons of 2002-03 and 2003-04 on wheat genotypes. The main plots treatment consisted of three irrigation schedules viz., normal irrigation (Control), two irrigations at 45 and 85 DAS (limited irrigation) and no post sowing irrigation (rainfed) and in sub-plots five genotypes were grown namely WH 896, WH 912, WHD 935, WHD 936, PDW 233, Raj 1555. The restricted irrigation decreased the leaf water potential (LWP), canopy temperature depression (CTD), transpiration rate, stomatal conductance and photosynthesis significantly over irrigated control, while, significant increase was observed in plant water retention. Reduction in grain yield under rainfed condition was 23.4 per cent. Reduced irrigation application decreased the yield attributes with maximum reduction in number of grains per spike. Genotype PDW 233 yielded significantly higher than all other tested genotypes. It maintained higher plant water status and higher rate of photosynthesis than other genotypes.
37
Fare, Donna C., Charles H. Gilliam, Gary J. Keever, and R. Bruce Reed. "Cyclic Irrigation and Media Affect Container Leachate and Ageratum Growth." Journal of Environmental Horticulture 14, no. 1 (1996): 17–21. http://dx.doi.org/10.24266/0738-2898-14.1.17.
Full textAbstract:
Abstract Two experiments were conducted with container-grown Ageratum houstonianum Mill. ‘Blue Puffs’ to compare cyclic and continuous irrigations. In experiment 1, leachate volumes were reduced about 54% with 0.4 cm (0.16 in) cyclic irrigation treatments applied with either a 30 min or 2 hr resting phase compared to continuous inigation of 0.4 cm (0.15 in). Total N leached was about 47% less with the cyclic treatments compared to continuous irrigation. In experiment 2, container leachate volumes and N leached were higher from a pine bark:sand medium, while plants were smaller compared to a pine bark:peat medium. Growth index and root distribution weresimilar with cyclic and continuous irrigation.
38
Culpepper, A. Stanley, Timothy L. Grey, and Theodore M. Webster. "Vegetable Response to Herbicides Applied to Low-Density Polyethylene Mulch Prior to Transplant." Weed Technology 23, no. 3 (2009): 444–49. http://dx.doi.org/10.1614/wt-08-135.1.
Full textAbstract:
Few herbicides are available for weed control in vegetable production systems using low-density polyethylene (LDPE) plastic mulch. With the elimination of methyl bromide for pest management and subsequent use of various alternative fumigants, the need for herbicides in vegetable production systems has increased. An experiment was conducted to evaluate tolerance of transplant summer squash and tomato to carfentrazone, flumioxazin, glyphosate, halosulfuron, or paraquat applied to the mulch prior to transplanting. After applying herbicides overtop of the mulch but prior to vegetable transplant, the mulch was either irrigated with 1.0 cm of water or not irrigated. Carfentrazone did not affect either crop regardless of irrigation. Irrigation readily removed glyphosate and paraquat from the mulch, as there was no adverse crop injury in these treatments. In the absence of irrigation, glyphosate and paraquat reduced squash diameter and tomato heights 18 to 34% at 3 wk after transplanting (WAT). Squash and tomato fruit numbers and fruit biomass (yield) were reduced 17 to 37%, and 25 to 33%, respectively. Halosulfuron reduced squash diameter and yield 71 to 74% and tomato heights and yields 16 to 37% when mulch was not irrigated prior to transplanting. After irrigating, halosulfuron had no affect on tomato, but reduced squash growth and yield 40 to 44%. Flumioxazin killed both crops when the mulch was not irrigated; and reduced squash yield 56% when irrigated. With irrigation, flumioxazin did not impact tomato fruit number, but did reduce tomato weight by 25%. These studies demonstrate the safety of carfentrazone, applied on mulch prior to transplanting either squash or tomato, regardless of irrigation, and also demonstrate the safety of glyphosate and paraquat if irrigated prior to transplanting. Conversely, flumioxazin should not be applied over mulch before transplanting either crop, regardless of irrigation. Halosulfuron application over mulch should be avoided before transplanting squash, regardless of irrigation, but can be applied prior to transplanting tomato if irrigated.
39
Ibrahim, Mohamed Abdullahi MOHAMUD, and BAYHAN Yilmaz. "The Effect of Different Irrigation Systems for Reduced Tillage on Characteristics of Sunflower." Journal of Scientific and Engineering Research 10, no. 12 (2023): 27–33. https://doi.org/10.5281/zenodo.10466069.
Full textAbstract:
<strong>Abstract </strong>This research will examine the potential yield impact of utilizing drip irrigation systems on sloped fields as a means of exploring an alternate irrigation strategy. Experiments in the field were first conducted in 2022 at the village of Cene, Hayrabolu District, Tekirdag Province. Two irrigation systems were used in the research and ane is drip irrigation (flat drip pipes) and the other is a sprinkler system (Automatic drum irrıgation machine). In the research, percentage of emerged seedlings, stem diameter and plant height were determined. The sprinkler irrigation system had the highest occurrence rate at 89.05%, followed by the drip irrigation system at 88.05%. The drip irrigation system ranked second in terms of germination rate compared to the traditional method, due to the seeds absorbing moisture. No-tillage and low tillage had higher water content and higher emergence rates. Statistically significant differences were found between the approaches with respect to plant height, stem diameter, head diameter, and productivity.
40
Yazar, Attila, Çigdem Incekaya, S. Metin Sezen, and Sven-Erik Jacobsen. "Saline water irrigation of quinoa (Chenopodium quinoa) under Mediterranean conditions." Crop and Pasture Science 66, no. 10 (2015): 993. http://dx.doi.org/10.1071/cp14243.
Full textAbstract:
Field experiments were set up in order to evaluate the yield response of quinoa (Chenopodium quinoa Willd. cv. Titicaca) to irrigation with saline and fresh water under Mediterranean climate from 2010 to 2012 in Adana, Turkey. Irrigation treatments in 2010 and 2011 comprised full irrigation with fresh water, full irrigation with saline water of different salt concentrations (40, 30, 20, 10 dS m–1), deficit irrigations with fresh water (50%, 75% of full irrigation), partial root-zone drying, and deficit irrigation with saline water of 40 dS m–1 (50%). In 2012, in addition to the full irrigation treatments, two deficit irrigation levels of 67% and 33% of full irrigation with fresh or saline (30, 20, 10 dS m–1) water were considered. The results indicated that grain yields were slightly reduced by irrigation water salinity up to 30 dS m–1 compared with fresh water irrigation. Salinity and drought stress together interfered considerably with crop grain and biomass yields. However, salinity stress alone did not interfere with grain and biomass yield significantly; therefore, quinoa may be defined as a crop tolerant to salinity. Yield parameters such as aboveground biomass, seed yield and harvest index suggested a good adaptation of quinoa cv. Titicaca to Mediterranean environments.
41
Parsons*, Larry R., and Ed Etxeberria. "Effects of Reduced Fall and Winter Irrigation on Citrus Fruit Quality." HortScience 39, no. 4 (2004): 886C—886. http://dx.doi.org/10.21273/hortsci.39.4.886c.
Full textAbstract:
Earlier work has shown that moderate water deficits imposed on citrus trees can increase fruit Brix without adversely affecting yield. Increased water restrictions have been imposed on citrus growers as Florida's population continues to increase. The objectives of this study were to determine: 1) the effects of no irrigation in the fall and winter on orange fruit quality parameters in Florida; and 2) amount of potential irrigation water savings. Trees were irrigated identically in the spring and summer. A non-irrigation treatment was started on Hamlin and Valencia oranges in September and October, respectively, while controls continued to be irrigated following established irrigation practices. An additional non-irrigated treatment was started at the same time on the Valencias that consisted of a soil covering with a water barrier (Tyvek) to exclude rainfall. Stem water potential was monitored during the fall and winter to estimate differences in water stress among the treatments. Brix and organic acids increased in fruit from non-irrigated treatments when compared to fruit from irrigated trees. Results also demonstrate that reduced irrigation did not affect yield greatly. Amount of irrigation savings was determined for both cultivars that differ in maturity dates.
42
Raymond, Michael A., Jeffrey C. Stark, and Glen A. Murray. "Irrigation Management Effects on Spring Pea Seed Yield and Quality." HortScience 22, no. 6 (1987): 1262–63. http://dx.doi.org/10.21273/hortsci.22.6.1262.
Full textAbstract:
Abstract Seed yield and quality of four spring pea cultivars (Pisum sativum L.) were evaluated when subjected to deficient, optimal, and excessive irrigation levels. Irrigation at 100% of the estimated optimal irrigation amount (IR) resulted in the greatest seed yields, whereas irrigation at 60% or 140% IR reduced yields by 468 and 222 kg·ha−1, respectively. Yield reductions for individual cultivars were as large as 694 and 350 kg·ha−1 for deficient and excessive irrigation, respectively. Increased yields for the 100% IR treatment resulted from increases in pods per plant and seeds per pod. Irrigation at 140% IR reduced germination of pea seed by 5% to 13%. Deficient irrigation reduced seed yield more than did excessive irrigation, whereas excessive irrigation caused the greatest reduction of seed quality.
43
Thompson, JA, and DL Chase. "Effect of limited irrigation on growth and yield of a semi-dwarf wheat in southern New South Wales." Australian Journal of Experimental Agriculture 32, no. 6 (1992): 725. http://dx.doi.org/10.1071/ea9920725.
Full textAbstract:
The semi-dwarf wheat cv. Egret, was subjected to moisture stress at specific growth stages in a field experiment in the Murmmbidgee Irrigation Area of New South Wales. The 6 treatments ranged from natural rainfall (129 mm of effective rainfall) to flood irrigations in the spring. Moisture stress during spike emergence and anthesis reduced yield from 7.0 to 3.3 t/ha through reductions in spikesJm2 (37%), individual grain weight (15%) and grain number per spike (13%). Stress during grain filling reduced yield by 20% mainly through a 16% reduction in individual grain weight. Irrigation treatment also significantly influenced dry matter production, plant height, leaf area, duration of grain filling and grain protein. Where irrigation water supply is limited, the best strategy would be avoidance of moisture stress during tillering through to spike emergence. An effective rooting depth of 70-80 cm was extended to >110 cm under severe moisture stress during grain filling, but at the expense of considerable yield.
44
Gurina, Irina V., and Alexander P. Tishchenko. "Irrigation regimes for sweet peppers." Land Reclamation and Hydraulic Engineering 13, no. 4 (2023): 243–62. http://dx.doi.org/10.31774/2712-9357-2023-13-4-243-262.
Full textAbstract:
Purpose: to study the features of irrigation regimes and their impact on the yield of sweet pepper based on the analysis of scientific sources of information. Discussion. Sweet pepper is a moisture-loving crop. For its normal growth and development, optimal soil moisture is required. Plants experience a special need for moisture when planting seedlings, flowering, as well as during fruit set and formation. Since sweet pepper crops are located in southern regions with a moisture deficit, irrigation acts as a guarantor of obtaining the planned yield of this crop. The main elements of the irrigation regime are irrigation, irrigation norms, the number of irrigations, the timing of their implementation to maintain a given level of soil moisture during crop cultivation. Modern irrigation regimes for sweet pepper have been developed both for conditions of full provision of water resources and for conditions of their deficiency. Under conditions of full water supply, maximum productivity and product quality indicators, more efficient use of irrigation water are ensured by drip irrigation mode with maintaining the pre-irrigation moisture threshold of the calculated soil layer at least 70–80 % of the lowest moisture capacity during the growing season. In differentiated irrigation regimes, higher values of pre-irrigation soil moisture thresholds are maintained in the first half of the growing season, when it is necessary to create favorable conditions for the rooting of seedlings, growth and development of plants. However, during this period the size of the calculated soil layer is reduced. By the stage of technical ripeness and until the end of fruit harvesting, soil moisture thresholds are reduced to 70–75 % of the lowest moisture capacity, but the moistened layer is increased. Conclusions. Optimal irrigation regimes make it possible to maintain the vital processes of plants and obtain the planned productivity even in dry conditions. The combination of irrigation modes with other elements of the technological process (mulching, fertilizing, etc.) increases the productivity of sweet pepper by 15–20 %.
45
Karim, MR, MM Alam, JK Ladha, MS Islam, and MR Islam. "Effect of different irrigation and tillage methods on yield and resource use efficiency of boro rice (Oryza sativa)." Bangladesh Journal of Agricultural Research 39, no. 1 (2014): 151–63. http://dx.doi.org/10.3329/bjar.v39i1.20165.
Full textAbstract:
An experiment was carried out in Bangladesh Agricultural Research Institute (BARI) farm during 2010-11 to evaluate yield and resource use efficiency of transplanted boro rice under two tillage and three irrigation methods. Two tillage methods viz., conventional tillage with puddle transplanted rice and reduced tillage unpuddled transplanted rice and three irrigation methods viz., sprinkler irrigation, alternate wetting and drying (AWD) and flood irrigation were used as treatment variables. Grain yield was 7.62% higher in sprinkler and 4.72% higher in AWD irrigation method over flood irrigation method. Irrespective of tillage methods, reduced tillage method holds 4.62% higher yield production over conventional tillage method. Water use efficiency was found highest in sprinkler irrigation method (0.83 kg/m3) and in reduced tillage method (0.773 kg/m3). Labour required for land preparation was 15 md/ha in reduced tillage, whereas it was 38 md/ha in conventional tillage method. Seedling uprooting and transplanting required higher labour in reduced tillage method over conventional tillage. Fuel consumptions (49.78 l/ha) and electricity (3475.11 Kwhr/ha) was also less in reduced tillage method. Reduced tillage had less land preparation and fuel cost over conventional tillage method. But seedling uprooting and transplanting cost was higher in reduced tillage. Irrigation and total cost of production was 7753 Tk./ha and 69972 Tk./ha in Sprinkler × RT method. Benefit cost ratio was also higher in sprinkler irrigation (1.81) and reduced tillage method (1.82). DOI: http://dx.doi.org/10.3329/bjar.v39i1.20165 Bangladesh J. Agril. Res. 39(1): 151-163, March 2014
46
Jajere, Ibrahim Ahmed, Ibraheem Alhassan, Ishaku James Dantata, and Aminu Maidala. "Optimizing yield and irrigation water productivity of wheat under Sahel conditions in North East Nigeria." Current Research in Agricultural Sciences 11, no. 2 (2024): 39–47. http://dx.doi.org/10.18488/cras.v11i2.3916.
Full textAbstract:
Unsustainable irrigation practices are a major threat to the available water resources and food security of the country. This research was conducted to determine the optimal wheat grain yield and water productivity (WP) under limited irrigation practices for the enhanced livelihood of small farmer holdings in the Sahel region of northeast, Nigeria. The research was carried out in randomized complete block design (RCBD) with split plot arrangement and replicated three times. The main plot treatment was 7 (I1), 10 (I2), and 14(I3) days irrigation intervals, while the subplot factor was 100 (V1), 85 (V2), and 70% (V3), of crop water requirement (ETc) replacement. The cropWat model was used to determine the crop water requirement (ETc) of the wheat (var. Norman) used in the research. The findings indicated that a 7-day irrigation interval increased grain yield by 20.18 over a 10-day irrigation interval and by 63.10% over 14-day irrigation intervals. Grain yield was found to decrease by 44.80 and 747.25kgHa-1 respectively for 85 and 70% ETc replacement irrigations from full ETc replacement irrigation. Crop water use efficiency was higher and better (0.74 mm-kg/ha) with I1V2 irrigation treatment for wheat and saved 11.55.50 m3 irrigation water over other irrigation schedules. It is recommended that 7 7-day irrigation interval be maintained, while irrigation depth can be reduced by up to 15% for optimum water productivity.
47
McNiesh, C. M., N. C. Welch, and R. D. Nelson. "Trickle Irrigation Requirements for Strawberries in Coastal California." Journal of the American Society for Horticultural Science 110, no. 5 (1985): 714–18. http://dx.doi.org/10.21273/jashs.110.5.714.
Full textAbstract:
Abstract Controlled trickle irrigation applications in commercial strawberry [Fragaria xananassa Duch. ‘Heidi’] plantings in coastal California were used to estimate crop coefficients (Kc) relating applied water requirements to reference evapotranspiration (ETo) and Class A pan evaporation (Epan). The value of Kc increased with foliar growth during spring and leveled off at a relatively constant maximum through summer and early autumn. Since rates of ETo averaged 13% higher than Epan, lower Kc values were recommended for irrigation schedules based on ETo than for schedules based on Epan. The value of maximum Kc for ETo scheduling was fixed between 0.45 ≤ Kc ≤ 0.7, whereas the limits for Epan scheduling were 0.55 ≤ Kc ≤ 0.8. Upper Kc limits were established by scheduling small volume irrigations only as necessary to maintain favorable soil moisture conditions. Harvest results and soil matric potential measurements indicated that irrigations scheduled at the lower Kc limits could lead to production loss. An evaluation of grower irrigation practices showed that current applied water rates could be reduced significantly by scheduling irrigations with recommended Kc values.
48
Mojid, MA, and ABM Zahid Hossain. "Conjunctive Use of Saline and Fresh Water for Irrigating Wheat (Triticum aestivum L.) at Different Growth Stages." Agriculturists 11, no. 1 (2013): 15–23. http://dx.doi.org/10.3329/agric.v11i1.15237.
Full textAbstract:
An experiment was conducted at the Bangladesh Agricultural University, Mymensingh during 2008 2009 and 20092010 to investigate the impacts of irrigation by saline water (7 dS m-1) at different growth stages of wheat (Triticum aestivum L.). Irrigations at crown root initiation (CRI) (T1) or booting (T2) or flowering (T3) or grain filling (T4) stage by saline water but at other growth stages by fresh water, and irrigation at all growth stages by fresh water (T5, control) were applied. Wheat was cultivated in two consecutive years (2008 2010) under four irrigations and with recommended fertilizer doses. Irrigation water having salinity of 7 dS m-1 did not significantly influence plant height, spike density, spikelets per spike, 1000-grain weight, grain yield, biomass yield and harvest index. The observed diminutive variations among the treatments reflected only non harmful impacts of salinity. Irrigation water salinity, however, significantly reduced spike length and grains per spike in most cases in the first year only. Treatment T4 producing, on an average over two years, the lowest grain yield (30% less compared to T5), grains per spike, spike length and spikelets per spike revealed that the grain filling stage of wheat was the most sensitive to irrigation water salinity. Although application of one of four irrigations by water of salinity 7 dS m-1 did not impart significant effect on wheat production, it was beneficial to avoid such irrigation at the grain filling stage. DOI: http://dx.doi.org/10.3329/agric.v11i1.15237 The Agriculturists 2013; 11(1) 15-23
49
G.S. BUTTAR, H.S. THIND, K.S. SEKHON, and ANUREET KAUR. "Agronomic strategies for sustainable use of poor quality water in wheat (Triticum aestivum) and hybrid Bt cotton (Gossypium hirsutum) in a calcareous soil." Indian Journal of Agronomy 59, no. 4 (2001): 568–74. http://dx.doi.org/10.59797/ija.v59i4.4598.
Full textAbstract:
A field experiment was conducted from 200506 to 200809 on calcareous soil in semi-arid area, to evaluate the response of each furrow and alternate furrow irrigation in wheat [Triticum aestivum (L.) emend. Fiori & Paol.] hybrid Bt cotton (Gossypium hirsutum L.) cropping system using irrigation waters of different qualities. Irrigation was applied to each and alternate furrow on bed-planted wheat followed by cotton for comparison with standard check-basin method of irrigation to both the crops. Three water qualities, namely good quality water (GW), sa- line-sodic water ( SSW) and pre-sowing irrigation to each crop with GW and all subsequent irrigations with SSW (GWpsi+SSW), were evaluated under 3 methods of irrigation (check-basin, each furrow and alternate furrow). The pooled results over 3 years revealed that wheat grain yield was not affected significantly by the quality of irri- gation water. However, significant wheat yield reduction was observed in alternate bed irrigation in all the water qualities. In hybrid Bt cotton, saline sodic water significantly reduced the seed-cotton yield in all the 3 methods of planting. The pre-sowing irrigation with GW and all subsequent irrigations with saline sodic water improved the seed-cotton yield as compared to the application of saline sodic water alone. However, in alternate furrow the yield increase was significant and the yield obtained was equal to the yield under alternate furrow in GW. Re- duced use of irrigation water under alternate furrow resulted in 21, 21 and 25% higher water-use efficiency in wheat under GW, SSW and GWpsi+SSW respectively. The corresponding increase under Bt cotton was 28, 19 and 36%.
50
Kerr, Robert Andrew, Lambert B. McCarty, Matthew Cutulle, William Bridges, and Christopher Saski. "Goosegrass Control and Turfgrass Injury Following Metribuzin and Topramezone Application with Immediate Irrigation." HortScience 54, no. 9 (2019): 1621–24. http://dx.doi.org/10.21273/hortsci14187-19.
Full textAbstract:
Goosegrass (Eleusine indica L. Gaertn.) is a problematic C4 weedy grass species, occurring in the warmer regions of the world where it is difficult to selectively control without injuring the turfgrass. Furthermore, control efficacy is affected by plant maturity. End-user options for satisfactory goosegrass control has decreased; thus, the need for developing management techniques to improve the selectivity of POST goosegrass control options in turfgrass systems is ever increasing. One possible means of providing control, yet maintaining turf quality is immediately incorporating applied products via irrigation. Greenhouse and field trials were conducted in Pickens County, SC, with the objectives of 1) evaluating turfgrass injury following use of POST goosegrass control options; 2) assessing if irrigating (0.6 cm) immediately following the herbicide application reduces injury of ‘Tifway 419’ bermudagrass [Cynodon dactylon (L.) Pers. × Cynodon transvaalensis Burtt-Davy]; and 3) determining if immediate irrigation influences goosegrass control at one- to three-tiller and mature growth stage. Following the application of herbicide treatments, irrigation was applied (+) or not applied (−). Treatments included the following: control (+/− irrigation); topramezone at 12.3 g a.i./ha (+/− irrigation); metribuzin at 420 g a.i./ha (+/− irrigation); and topramezone plus metribuzin (+/− irrigation) at 12.3 and 420 g a.i./ha. Irrigation treatment had minimum effect on greenhouse-grown goosegrass biomass, all treatments provided >85% control of 1- to 3-tiller goosegrass plants. However, control for mature plants was <50% for topramezone- and 60% to 70% for metribuzin-containing treatments. In field studies, at 1 week after treatment (WAT), the irrigated metribuzin and topramezone plus metribuzin had ≈37% and ≈16%, respectively, less goosegrass control vs. nonirrigated treatments. At 2WAT, irrigated metribuzin and irrigated topramezone plus metribuzin–treated plots, had ≈50% less mature goosegrass control vs. nonirrigated treatments. Irrigated herbicide treatments, however, experienced ≈23% less turfgrass injury at this time. At 4 WAT, irrigated metribuzin- and irrigated topramezone plus metribuzin–treated plots experienced reduced mature goosegrass control by ≈65% and ≈59%, respectively. Overall, incorporating POST herbicide applications via 0.6 cm of irrigation reduced turfgrass injury by at least 20% for all herbicide treatments, while maintaining goosegrass control.