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Journal articles on the topic 'Dry weight of weeds'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Khan, Bilal Ahmad. "COMPARATIVE EFFICACY OF DIFFERENT HERBICIDES FOR WEED MANAGEMENT IN LENTIL (Lens culinaris L.)." JOURNAL OF WEED SCIENCE RESEARCH 28, no. 3 (2022): 29–44. http://dx.doi.org/10.28941/pjwsr.v28i1.994.

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Weeds are a major threat to global crop productivity and food security. Weeds compete with plants for applied inputs and resources and resultant cause a significant reduction in final productivity. A study was conducted at Agronomic Research Area, University of Agriculture, Faisalabad. The study was comprised of two lentil varieties (Punjab Masoor-2009, Punjab Masoor-2020) and seven treatments i.e., weedy check (control), manual weeding, Pendimethalin 33 EC @ 247 ml ha-1, S. metolachlor 960 EC @ 1976 ml ha-1, Pendimethalin +S. metolachlor @ 2223 ml ha-1, Flumetsulam 80 WG @ 18.525 g ha-1 and F

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Charles, Graham W., Brian M. Sindel, Annette L. Cowie, and Oliver G. G. Knox. "The value of using mimic weeds in competition experiments in irrigated cotton." Weed Technology 33, no. 04 (2019): 601–9. http://dx.doi.org/10.1017/wet.2019.35.

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AbstractCrop plants have been used as mimic weeds to substitute for real weeds in competition studies. These mimic weeds have the advantages of availability of seed, uniform germination and growth, and the potential to confer better experimental controllability and repeatability. However, the underlying assumption that the competitive effects of mimic weeds are similar to real weeds has not been tested. We compared a range of morphological traits (plant height, node and leaf number, leaf area, leaf size, and dry weight) between the mimic weeds and real weeds: Japanese millet vs. junglerice, mu

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3

Jursík, M., J. Holec, J. Soukup, and V. Venclová. "Competitive relationships between sugar beet and weeds in dependence on time of weed control." Plant, Soil and Environment 54, No. 3 (2008): 108–16. http://dx.doi.org/10.17221/2687-pse.

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Small plot trials were carried out in years 2001–2003 with sugar beet. In the treatment without weed control, dry weight of sugar beet top and LAI of sugar beet were very low (approx. 50 g/m<sup>2</sup> and 0.5 m<sup>2</sup>/m<sup>2</sup>, respectively). Yield loss of sugar beet was 80–93%. Dominant weeds were <I>Chenopodium album, Fumaria officinalis</I> and <I>Galium aparine</I>. In the treatments where weeds were removed (by hand) until 4 leaf stage of sugar beet, dry weight of sugar beet top and LAI of sugar beet at first increase

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4

Arridho, Subhan. "Response Of Weed Seed Germination From Fruit Crops Planting Soil To Application Of Metsulfuron Methyl Herbicide And Rice Husk Biochar." JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) 3, no. 2 (2021): 91–103. http://dx.doi.org/10.36378/juatika.v3i2.1409.

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This study aims to determine the effect of the pre-emergence application of the herbicide metsulfuron methyl on the soil mixed with rice husk biochar to the germination of weeds. This study used a factorial completely randomized design (CRD) with two levels of herbicide metsulfuron methyl (0 gr/ha and 300 gr/ha) and four levels of rice husk biochar (0%, 5%, 10%, and 15% of the total weight of the planting medium). The parameters observed were the number of weeds, wet weight of weeds, and dry weight of weeds. The results showed that the interaction of the herbicide metsulfuron methyl and rice h

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LAKHAN BHALSE, A.K. JHA, BADAL VERMA, SHIVANGI RAGHUWANSHI, MUSKAN PORWAL, and M.P. SAHU. "Efficacy of pyroxasulfone and its combinations against weeds in wheat (Triticum aestivum)." Indian Journal of Agronomy 68, no. 4 (2024): 443–46. http://dx.doi.org/10.59797/ija.v68i4.5470.

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A field experiment was conducted during the winter (rabi) season of 2021–22 at the research farm of Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh to study the efficacy of pre-emergence herbicides against weeds in wheat (Triticum aestivum L.). The experiment was laid out in a randomized block design with 3 replications and 8 weed control treatments. Major weed flora in the experimental site, viz. Medicago polymorpha (L.) (28.97%) and Cichorium intybus (L.) (26.19%) were predominant in dicot weeds and in monocot weeds, Phalaris minor (17.82%) was dominant. The weedy check pl

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6

Mubeen, Khuram, Muhammad Shehzad, Naeem Sarwar, et al. "The impact of horse purslane (Trianthema portulacastrum L.) infestation on soybean [Glycine max (L.) Merrill] productivity in northern irrigated plains of Pakistan." PLOS ONE 16, no. 9 (2021): e0257083. http://dx.doi.org/10.1371/journal.pone.0257083.

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Horse purslane (Trianthema portulacstrum L.) is an important weed of soybean crop capable of causing significant yield reduction. Therefore, this study assessed the impact of horse purslane and other weeds’ infestation on the productivity of soybean. Ten treatments, i.e., weed-free throughout the growing season, horse purslane-free till 20, 40 and 60 days after emergence (DAE), all weeds-free till 20, 40 and 60 DAE, weedy-check (excluding horse purslane), weedy-check (horse purslane alone) and weedy-check (all weeds) were included in the study. Data relating to density and dry weight of record

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McGiffne, Milton E., and Chad Hutchinson. "404 Cowpea Cover Crop Mulch Controls Weeds in Transplanted Bell Peppers." HortScience 35, no. 3 (2000): 462D—462. http://dx.doi.org/10.21273/hortsci.35.3.462d.

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A 2-year field project was conducted in Thermal, Calif., on cowpea (Vigna unguiculata) mulch as an alternative weed control option in pepper (Capsicum annuum) production. Treatments included a bare ground production system with hand weeding, bare ground with no weeding, a cowpea mulch production system with hand weeding, and cowpea mulch with no weeding. Cowpea was seeded in July in 76-cm beds and irrigated with a buried drip line. In September, irrigation water was turned off to dry cowpea plants. The cowpea plants then were cut at the soil-line to form mulch. Pepper plants were transplanted

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8

Takim, F. "Weed competition in maize (Zea mays L.) as a function of the timing of hand-hoeing weed control in the southern Guinea savanna zone of Nigeria." Acta Agronomica Hungarica 60, no. 3 (2012): 257–64. http://dx.doi.org/10.1556/aagr.60.2012.3.8.

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Field studies were conducted in 2010 and 2011 at the Teaching and Research Farm of the University of Ilorin, Nigeria (9°29′ N, 4°35′ E) to evaluate the effect of early weed competition on the growth and yield of maize. The experiment was designed as a randomized complete block (RCBD) with a split-plot arrangement and three replications. The main plots consisted of three weed control treatments included weedy (no herbicide), grass weeds (pre-emergence atrazine) and broadleaf weeds (pre-emergence metolachlor), while the sub-plots consisted of six durations of weed infestation (3, 4, 5, 6, 7 and

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9

Berry, Adrian D., William M. Stall, B. Rathinasabapathi, Gregory E. Macdonald, and R. Charudattan. "Smooth Pigweed (Amaranthus hybridusL.) and Livid Amaranth (Amaranthus lividus) Interference with Cucumber (Cucumis sativus)." Weed Technology 20, no. 1 (2006): 227–31. http://dx.doi.org/10.1614/wt-04-239r.1.

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Field studies were conducted to determine the effect of season-long interference of smooth pigweed or livid amaranth on the shoot dry weight and fruit yield of cucumber. Smooth pigweed or livid amaranth densities as low as 1 to 2 weeds per m2caused a 10% yield reduction in cucumber. The biological threshold of smooth pigweed or livid amaranth with cucumber is between 6 to 8 weeds per m2. Consequently, weed interference resulted in a reduction in cucumber fruit yield. Smooth pigweed, livid amaranth, and cucumber plant dry weight decreased as weed density increased. Evaluation of smooth pigweed,

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Galal, A. H. "Effect of weed control treatments and hill-spacing on soybean and associated weeds." Acta Agronomica Hungarica 52, no. 1 (2004): 81–93. http://dx.doi.org/10.1556/aagr.52.2004.1.10.

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Two field experiments were carried out at the Experimental Farm of Assiut University, during the 2000 and 2001 summer seasons, to study the effect of three hill spacings (5, 10 and 15 cm) and six weed control treatments on the associated weeds, plant growth, yield and quality of soybean. The weed control treatments were carried out with trifluralin, linuron, pendimethalin, bentazon and hand hoeing, with an unweeded treatment as the control. All the weed control treatments exerted a significant influence on the dry weight of weeds. Hand hoeing and pendimethalin treatment significantly decreased

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11

Tadele, Worku, Taye Tessema, and Samuel Tegene. "Determination of critical period of weed competition in Sugarcane (Saccharum officinarum L.) at Arjo Didessa sugar estate, western Ethiopia." Journal of Current Opinion in Crop Science 3, no. 2 (2022): 62–71. http://dx.doi.org/10.62773/jcocs.v3i2.165.

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Weeds limit sugar cane production. A field experiment employing cultivar NCO334 and Randomized Complete Block Design (RCBD) was done to assess weed competition crucial period. After planting, experimental plots were either weed-free or weedy (0, 25, 50, 75, 100, 125, and 150 DAP). Weed density, weed dry weight, sugarcane sprout, tiller number, cane height, millable cane number, girth, weight, and predicted cane and sugar production traits were evaluated. For different periods, weed competition affects tiller number, cane height, girth, weight, millable cane number, and cane and sugar yield. Ti

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12

Hutchinson, Chad M., and Milton E. McGiffen. "Cowpea Cover Crop Mulch for Weed Control in Desert Pepper Production." HortScience 35, no. 2 (2000): 196–98. http://dx.doi.org/10.21273/hortsci.35.2.196.

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A 2-year field project was conducted in Thermal, Calif., to investigate cowpea [Vigna unguiculata (L.) Walp.] mulch as an alternative weed control option in pepper (Capsicum annuum L.) production. Treatments included: bare ground (BG) with hand weeding, BG with no weeding, cowpea mulch (CM) with hand weeding, and CM with no weeding. Cowpea was seeded in July on 76-cm beds and irrigated with buried drip line. Two weeks prior to transplanting peppers, irrigation water was turned off to desiccate the cowpea plants. In September, cowpea was cut at the soil line, mulch was returned to the top of th

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13

Wright, Shawn R., Harold D. Coble, C. David Raper, and Thomas W. Rufty. "Comparative responses of soybean (Glycine max), sicklepod (Senna obtusifolia), and Palmer amaranth (Amaranthus palmeri) to root zone and aerial temperatures." Weed Science 47, no. 2 (1999): 167–74. http://dx.doi.org/10.1017/s004317450009158x.

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Experiments were conducted to compare germination efficiencies and vegetative growth of soybean and the competing weed species, sicklepod and Palmer amaranth, over a range of temperatures in the root zone and aerial environments. From genetic origins we hypothesized that the weeds would have a higher temperature optimum, which would help explain competitive interactions seen in the southeastern U.S. Germination experiments indicated that germination efficiency of the weeds was much more sensitive to low temperature than soybean, being markedly inhibited below 18 C. Similarly, experiments in an

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14

O'Donovan, John T. "Green Foxtail (Setaria viridis) and Pale Smartweed (Polygonum lapathifolium) Interference in Field Crops." Weed Technology 8, no. 2 (1994): 311–16. http://dx.doi.org/10.1017/s0890037x00038835.

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Field experiments were conducted at Vegreville, Alberta in 1984, 1985, 1986, and 1988 to determine the effects of green foxtail and pale smartweed on yield of wheat, barley, and canola. There was considerable variation among years in the response of crop yield to both weeds and in the relationship between weed dry weight and weed density. Mostly relationships between crop yield and either weed density or dry weight were poor, suggesting that the weeds competed weakly with the crops. Thus density or dry weight may be poor predictors of crop yield losses due to green foxtail or pale smartweed. W

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15

DHARAM BIR YADAV, ASHOK YADAV, and S.S. PUNIA. "Impact of long-term green manuring and herbicides on weed biomass, crop productivity and profitability in rice (Oryza sativa)wheat (Triticum aestivum) cropping system in Haryana." Indian Journal of Agronomy 64, no. 2 (2001): 172–79. http://dx.doi.org/10.59797/ija.v64i2.5250.

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A long-term field experiment was conducted from 19992000 to 201516 at Karnal, Haryana, to study the ef- fect of green manuring (GM) and continuous or rotational use of herbicides on weed pressure, crop productivity and soil properties in rice (Oryza sativa L.)wheat (Triticum aestivum L.) system. Based on data from 200809 on- ward (results from 19992000 to 200708 published elsewhere), the dry-weight of grassy weeds in rice was lower or similar under GM (103407 g/m2) as compared to without green manuring (WGM) (153472 g/m2) except higher dry-weights during 2011 and 2014. The dry-weight of broad

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16

Hasanuddin H, R. Husna, Zulwanis, et al. "Application of clomazone and oxyfluorfen herbicide mixture and its effect on weed growth." IOP Conference Series: Earth and Environmental Science 1476, no. 1 (2025): 012065. https://doi.org/10.1088/1755-1315/1476/1/012065.

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Abstract This research aims to determine the growth of weeds due to the application of a mixture of clomazone and oxyfluorfen herbicides. The experimental design was a Randomized Completely Block Design. The treatments were: without herbicide (control), 3.125L/ha of clomazone, 6.250L/ha of oxyfluorfen, 1.563L/ha of clomazone + 3.125L/ha of oxyfluorfen, 2.084 L/ha of clomazone + 4.167L/ha oxyfluorfen, 1.042L/ha of clomazone + 4.167L/ha of oxyfluorfen, 2.084L/ha of clomazone + 2.084L/ha of oxyfluorfen, 1.042L/ha of clomazone + 2.084L/ha of oxyfluorfen. The variables observed were: weed control p

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17

Mubassir Ahmad, Muhammad Ibrahim, Amjad Ali, et al. "Response of maize productivity to nitrogen management and mulching practices." Journal of Agriculture Sustainability and Environment 1, no. 1 (2022): 52–61. http://dx.doi.org/10.56556/jase.v1i1.882.

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The present experiment was conducted to evaluate the effect of different nitrogen levels and mulch practice on days to physiological maturity, plant height, mean leaf area, mean weeds population, weeds fresh weight, weeds dry weight of maize at Agriculture Research Station Swabi, Khyber Pakhtunkhwa during summer 2019. The experiment was laid out in a randomized complete block design (RCBD) with three replicates. Data was recorded on six quantitative traits i.e. days to physiological maturity, plant height, mean leaf area, mean weeds population, weeds fresh weight, weeds dry weight. Results ind

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Sairam, Gaini, A. K. Jha, Badal Verma, Muskan Porwal, Abhijeet Dubey, and R. K. Meshram. "Effect of Mesotrione 40% SC on Weed Growth, Yield and Economics of Maize (Zea mays L.)." International Journal of Environment and Climate Change 13, no. 7 (2023): 608–16. http://dx.doi.org/10.9734/ijecc/2023/v13i71913.

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Newer herbicides are required to reduce the losses cause by the weeds in maize crop. Therefore, a field experiment was conducted during kharif 2019 at Research Farm, AICRP on Forage Crops, Department of Agronomy, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (Madhya Pradesh) to study the effect of different weed management practices on productivity of Maize (Zea mays L.). The experiment was conducted in randomized block design with eight treatments (six herbicidal treatments with hand weeding twice at 20 and 40 DAS and weedy check) replicated thrice. Observations were recorded for various

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Hasanuddin, H., G. Erida, S. Hafsah, A. Marliah, Y. Agustiawan, and D. S. Aryani. "Application of oxyfluorfen and pendimethalin to control weeds on soybean plantation." IOP Conference Series: Earth and Environmental Science 951, no. 1 (2022): 012066. http://dx.doi.org/10.1088/1755-1315/951/1/012066.

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Abstract The appearance of weeds on crops has led to the significant loss of crop yield. Therefore, chemical control with herbicides has been an important tool for rapid and efficient weed management in crops. The objective of this study was to evaluate the effect of herbicides oxyfluorfen and pendimethalin against weeds on soybean plantation. This research employed Randomized Completely Block Design (RCBD) Factorial with 2 factors. The first factor was the type of herbicides: oxyfluorfen and pendimethalin. The second factor was herbicide doses: 0, 500, 1000, 1500 and 2000 g a.i ha-1, applied

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SaadatGhaleh joogh, Seyedeh Azaam, Ahmad Tobeh, Abdolghayoum Golipori, and Mehran Ochi. "Management of cover crops of cold cereal, on total fresh weight, total dry weight weed, yield and yield components peppermint." Journal of Research in Science, Engineering and Technology 4, no. 01 (2019): 31–36. http://dx.doi.org/10.24200/jrset.vol4iss01pp31-36.

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To study the effect of cover crop and how manage cover crop an experiment was conducted in Agricultural Research Center of University of Mohaghegh Ardabili , the experiment was factorial based on complete randomized block design with three replications. winter cover crops and spring cover crops as the main factor with six levels( winter wheat, spring wheat, winter barley , spring barley, winter rye, winter rye+ winter barley) and how manage cover crop with three levels (living mulch, heading mulch, mulch with herbicide) as a second factor. For comparison, two controls (without cover crop with

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SUBHASHINI, D. V. "Bioherbicidal activity of Streptomyces spp isolated from tobacco rhizosphere against certain dicot and monocot weeds." Indian Journal of Agricultural Sciences 82, no. 12 (2013): 1079–82. http://dx.doi.org/10.56093/ijas.v82i12.26260.

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A bioherbicide is a biologically based control agent for weeds that utilize such naturally occurring enemies, rather than depending on man-made chemicals. Out of 12 isolates of Streptomyces spp. obtained from tobacco rhizosphere two isolates (SI and SII) were found to be efficient in suppressing the weeds. Growth pattern of the isolates was studied. Isolate SII was found to be more effective against weeds. Weedicidal activity of Streptomyces was tested against two dicot and two monocot weeds of tobacco fields, viz. Solanum nigrum, Sorghum halepense, Eleusine indica and Euphorbia hirta. Strepto

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Abdelhamid, M. T., and I. M. El-Metwally. "Growth, nodulation, and yield of soybean and associated weeds as affected by weed management." Planta Daninha 26, no. 4 (2008): 855–63. http://dx.doi.org/10.1590/s0100-83582008000400017.

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Two field experiments were conducted at the experimental farm of the National Research Centre at Shalakan, Kalubia Governorate, Egypt, during 2006 and 2007 seasons, to study the effect of three pre-emergence herbicides, prometryn [at the rate of 0.75, 1.5 and 2.25 kg ha-1], oxadiargyl [at the rate of 240, 480 and 720 g ha-1] and butralin [at the rate of 1.20, 2.40 and 3.36 kg ha-1], two hand hoeing treatments and a nonweeded check, on weed infestation, nodulation, growth, yield and yield attributes of soybean plants. Two hand hoeing treatments resulted in the highest weed depression expressed

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Ali, Salman, Muhammad Arif, Mehran Ali, et al. "Biochar and integrated phosphorus management suppress weed density in maize crop." JOURNAL OF WEED SCIENCE RESEARCH 27, no. 2 (2020): 491–98. http://dx.doi.org/10.28941/pjwsr.v26i4.911.

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Weeds pose a significant threat to successful crop production. To meet the increasing future food demand, sustainable and efficient weed control remains a cornerstone practice. Usage of high doses of herbicides for killing weeds has created several ecological and environmental problems which cannot be overlooked. Therefore, other weed control practices and techniques should be adopted to minimize weed-crop competition and increase the growth and productivity of crop, instead of chemicals. An experiment was established at Agronomy Research Farm, the University of Agriculture Peshawar to evaluat

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Teotia, Vikas, Sonu, Manoj Kumar Singh, Saroj Kumar Prasad, and Karam Husain. "Evaluation of Various Herbicide Combinations for Weed Control in Wheat Crop." Ecology, Environment and Conservation 30, SUPPL (2024): S368—S372. http://dx.doi.org/10.53550/eec.2024.v30i03s.063.

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Now a day’s herbicides are important tool for weed management in wheat crop. As weeds develop resistance against herbicide, cause the serious threat to wheat growers. There is urgent need to find out the new herbicide mixture to control the weeds successfully. A research was conducted in complete randomized block design having eight herbicide mixture Sulfosulfuron (SUL) + Carfentrazone [25+20], SUL+ (Halauxifenmethyl + Florasulam) (HAL+FLO) [25+12.76], SUL+ Metsulfuron (MET) [25+4], Clodinofop (CP) + (HAL+FLO)* [60+12.76], SUL+ Pyroxsulam (PYR) [25+18], CLO+PYR [60+18], CLO+MET [60+4] and Meso

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MUHAMMAD ATHER NADEEM, ASlF TANVEER, ASGHAR ALI, M. AYUB, and MUHAMMAD TAHlR. "Effect of weed-control practice and irrigation levels on weeds and yield of wheat (Triticum aestivum)." Indian Journal of Agronomy 52, no. 1 (2001): 60–43. http://dx.doi.org/10.59797/ija.v52i1.4891.

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A field experiment was conducted to study the effect of different weed-control practices and irrigation levels on weeds and yield of wheat (Triticum aestivum L. emend. Fiori & Paol.) in winter 2002-03 and 2003-04 in Paki- stan. The experiment comprised four weed-control practices, viz. weedy check, pre-emergence application of pendimethalin, post-emergence application of isoproturon + carfentrazone ethyl and manual weed control (two hoeings), and four irrigation levels, viz. 0.50, 0.75, 1 .OO and 1.25 irrigation water (IW): cumulative pan evapora- tion (CPE). The manual hoeing resulted in

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Safi, Suhad Mathkoor A., Watheq Falhi Hammood, and Rafid Ahmed Abbas Al-Khaldy. "Response of Barley Cultivars to Weed Control with Herbicides and Datura Leaf Extract and Its Reflection on Growth Indicators." IOP Conference Series: Earth and Environmental Science 1158, no. 6 (2023): 062018. http://dx.doi.org/10.1088/1755-1315/1158/6/062018.

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Abstract A field experiment was carried out to find out the effect of selected chemical herbicides (Crash+ U46-Combifiluid) and Datura leaf extract (4 leaf age) on companion weeds of two barley cultivars (IPA99 and IPA 265), coupled with certain growth indicators of these two cultivars. The results showed the superiority of the two treatments of spraying weed herbicides (T1) and Datura leaf extract (T2), as they recorded the lowest weed dry weight amounted to 4.75 and 17.18 grams/meters-2. Along with, the highest inhibition ratio in dry weight was 96.14% and 86.09%, the highest number of tille

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Lejeune, Katherine R., James L. Griffin, Daniel B. Reynolds, and Arnold M. Saxton. "Itchgrass (Rottboellia cochinchinensis) Interference in Soybean (Glycine max)." Weed Technology 8, no. 4 (1994): 733–37. http://dx.doi.org/10.1017/s0890037x00028608.

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Interference between itchgrass and soybean was evaluated over two years using area-of-influence procedures. Soybean seed weight within 20 cm of the weed was reduced 15 to 21%. In the first year, seed weight reduction of 9% was detected at a distance of 40 to 60 cm from the weed. Weight reductions were attributed to decreases in seed number of 12 to 22% within 40 cm of the weed compared with the 140 to 160 cm control area. Itchgrass interference increased soybean height within 40 cm of the weed, but soybean canopy width was generally unaffected. Soybean interference did not affect height of itc

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Bordelon, Bruce P., and Stephen C. Weller. "Cover Crop Effects on Weed Control and Growth of First-year Grapevines." HortScience 30, no. 4 (1995): 801E—801. http://dx.doi.org/10.21273/hortsci.30.4.801e.

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Four cover crops were evaluated for weed control and effects on first-year vine growth. Winter wheat (cv. Cardinal), rye (cv. Wheeler), oats (cv. Ogle), and hairy vetch (no cultivar name) were either fall- or spring-planted and compared to cultivated and weedy control plots. Cover crop and weed biomass dry weight was collected twice during the growing season. Vines (Vitis labrusca cv. Steuben) were planted in the spring and destructively sampled at the end of the growing season for analysis of leaf area, leaf number, shoot length., shoot number, top growth dry weight, and root system dry weigh

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Alaa A. J. AL-Behadili. "ALLELOPATHIC EFFECT OF ROOT EXUDATES FROM SOME SUNFLOWER CULTIVARS ON ACCOMPANYING WEEDS." IRAQI JOURNAL OF AGRICULTURAL SCIENCES 56, no. 2 (2025): 776–83. https://doi.org/10.36103/kay68203.

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The study looked at what happened to the weeds growth in the field when different types of sunflowers released root exudates grown in the summer of 2023. The goal was to determine if sunflower types' allelopathic potential affects weed growth and number. The results showed that after 30, 60, 90, and 120 days of cultivation, the Flamme cultivar did better than the Sakha, Aqmar, and Abba5 cultivars in reducing the number of weeds and their dry weight. The weed density dropped by 60%, 46%, 38%, and 35% compared to the control treatment, and the weeds' dry weight dropped by 61%, 66%, 62%, and 53%

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EL- Delfi, Mahmoud Radi, and Suhad Mathkoor A. Safi. "EFFECT OF INHIBITION OF WEEDS DRY WEIGHT ON WHEAT GROWTH INDICATORS." Iraqi Journal of Market Research and Consumer Protection 15, no. 1 (2023): 213–21. http://dx.doi.org/10.28936/jmracpc15.1.2023.(19).

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The experiment was carried out in the experimental field during the winter season of the year 2021-2022. The current study was carried out with the aim of evaluating the efficiency of the herbicide H-199 and comparing it with some herbicides used in the control of companion weeds with three cultivars of wheat and its effect on some growth characteristics. The experiment was applied according to the randomized complete block design (RCBD) with split plot arrangement by four replicates. Cultivars (IPA 99, Sham 6, and Rasheed) represent the main plots, while control treatments (H-199, Chevalier,

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La Bonte, D. R., H. F. Harrison, and C. E. Motsenbocker. "EFFECT OF CANOPY TYPE ON WEED COMPETITION IN SWEETPOTATOES." HortScience 30, no. 3 (1995): 442c—442. http://dx.doi.org/10.21273/hortsci.30.3.442c.

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The objective of this study was to identify a sweetpotato canopy type ideally suited to suppress weed growth. With this knowledge, breeders could select sweetpotatoes that require less weed control. Diverse canopy types, ranging from upright, short-internode bunch types to long-internode trailing types, were compared in a split-plot design (hand-weeded and weed treatments). We also included lines with deeply lobed leaves (palmate) and more entire-leaf types. Our results show no significant differences between lines for total ground surface area covered after 6 weeks of growth, no differences i

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Gawęda, Dorota, and Piotr Andrzej Kopcewicz. "Weed infestation of soybean depending on the cultivar and row spacing under organic and conventional cultivation conditions." Agronomy Science 78, no. 1 (2023): 41–51. http://dx.doi.org/10.24326/as.2023.5005.

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An experiment in growing soybean was conducted at the Czesławice Experimental Farm, belonging to the University of Life Sciences in Lublin, over the period 2018–2020. Three experimental factors were included in this study: cultivation method (conventional and organic), soybean cultivar (Aldana and Merlin), and row spacing (22.5 cm and 35 cm). The species composition, number, and air-dry weight of weeds were evaluated. The Shannon-Wiener diversity index (H’) and the Simpson dominance index (SI) were also calculated for the weed community in the soybean crop. Compared to conventional farming, or

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33

Kharwal, Nitesh, and Deependra Yadav. "Effect of Integrated Weed Management Practices on Growth and Yield of Green Chilli (Capsicum annum L.)." International Journal of Plant & Soil Science 35, no. 18 (2023): 1763–70. http://dx.doi.org/10.9734/ijpss/2023/v35i183456.

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Weed infestation in chilli production, especially during early growth stages, is a major constraint leading to significant yield loss. Effective weed management during this critical phase is crucial for maximizing chilli crop productivity. Keeping this in view a field experiment was conducted at the research farm of Abhilashi University, Mandi (H.P) during the Kharif season of 2022-23. The main objective was to assess the impact of various integrated weed management strategies on the growth and yield of green chilli crops. The experiment consisted of seven treatments with control, laid out in

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Aktar, Shamima, MA Hossain, A. Siddika, Nazmun Naher, and MR Amin. "Efficacy of Herbicides on the Yield of Lentil (Lens culinaris Medik.)." Agriculturists 11, no. 1 (2013): 89–94. http://dx.doi.org/10.3329/agric.v11i1.15248.

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A field experiment was conducted at Bangladesh Agricultural Research Institute, Gazipur during rabi (winter) season of 2008-09 to observe the efficacy of two herbicides on the yield of lentil (BARI masur-5). Paraxon, Whipsuper, Ronstar and Topstar were the herbicidal treatments applied after sowing of seeds and two leaf stage of weeds according to their mode of action. Dry weight of weed samples were recorded at 25 DAS and 40 DAS. The dry weight of weeds was found to be maximum in unweeded control. The highest yield of lentil 1086.6 kg ha-1 was observed when Whipsuper was applied while the con

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Ogg, Alex G. "Control of Downy Brome (Bromus tectorum) and Volunteer Wheat (Triticum aestivum) in Fallow with Tillage and Pronamide." Weed Technology 7, no. 3 (1993): 686–92. http://dx.doi.org/10.1017/s0890037x00037556.

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Field studies were conducted in 1986-87 and 1988-89 to compare chiseling, disking, and skewtreading to no-till and to compare 0.3 and 0.4 kg ai ha−1pronamide applied before or after fall tillages for weed control in fallow. Chiseling or disking in October 1986 when weeds were emerged reduced the dry weight of volunteer wheat about 90% the following spring; however, only disking reduced the dry weight of downy brome 90%. Disking or skewtreading in October 1988 before weeds germinated reduced the dry weight of volunteer wheat about 95% 6 mo later, but none of the three tillages reduced the dry w

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Younis, Muhammad, Nabeel A. Ikram, Shahid Iqbal, et al. "Weed-competition effects on proso millet (Panicum miliaceum L.): implications for the farmers." International Journal of Agricultural Extension 9, no. 3 (2021): 329–34. http://dx.doi.org/10.33687/ijae.009.03.3564.

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Climate resilient proso millet (Panicum miliaceum L.) is viable option to mitigate increasing abiotic stresses due to climate change and food security in the long run. An experiment was conducted at research area of MNS-University of Agriculture, Multan in 2019 to evaluate the impact of weed competition on growth and yield of proso millet. Proso millet variety Upea was sown in the last week of February 2019 with 20 cm row to row spacing using 5 kg seed per acre. Experiment was comprised of treatments of weeds competition period for viz; zero competition, competition for 2 weeks after emergence

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G, VELU, and SANKARAN S. "IMPACT OF HERBICIDE APPLICATION ON WEED CHARACTERISTICS AND YIELD POTENTIAL IN GREEN GRAM." Madras Agricultural Journal 84, November December (1997): 644–47. http://dx.doi.org/10.29321/maj.10.a00931.

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The efficiency of three herbicides viz., fluchloralin (0.90 kg ha''), thiobencarb (1.25 kg ha) and metolachlor (1.00 kg ha¹) on weed characteristics such as weed flora, relative density and relative dry weight of weeds, weed control efficiency, weed index and gran yield of three green gram cultivars viz., Co 4. NARP I and Co GG 89047 were evaluated in the field conditions. Among them, metolachlor followed by fluchloralin and thiobencarb reduced the relative density and relative dry weight of weeds over unweeded control. The sedge (Cyperus rotundus) was dominant followed by broad leaved weeds v

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Y., M. Ramesha, Bhanuvally Manjunatha, Kumar Gaddi Ashok, Krishamurthy D., and R. Umesh M. "Efficacy of Propanil against Weeds in Direct Seeded Rice and Its Effect on Succeding Crop." International Journal of Plant & Soil Science 17, no. 3 (2017): 1–7. https://doi.org/10.9734/IJPSS/2017/33555.

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<strong>Aims:</strong> To assess the efficacy of propanil against weeds in direct seeded rice. <strong>Place and Duration:</strong> A field study was conducted during <em>Kharif</em> 2015 and <em>summer </em>2016, at Agricultural Research Station, Dhadesugur, University of Agricultural Sciences, Raichur, Karnataka, India. <strong>Methodology:</strong> An investigation comprises of eight treatments and replicated thrice. The weeds which were dominant in trials field are<em> Echinichloa sp. Panicum repens, Leptochloa chinensis, Brachiaria mutica, Digitaria sanguinalis</em> among grasses, <em>Ecl

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Mohamed, A. I., and M. O. M. Nour. "Weed Competition, Yield and Tuber Size of Potato as Affected by Herbicides Under Sudanese Conditions." Experimental Agriculture 22, no. 1 (1986): 59–65. http://dx.doi.org/10.1017/s0014479700014046.

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SUMMARYThe effects on the potato crop of the herbicides metribuzin, linuron and metobromuron, singly and in combination with each other and with hand weeding, were investigated and compared with cropped and uncropped weedy controls. Weed competition was determined by measuring weed dry weight. When the three herbicides were applied singly metribuzin gave the lowest weed dry weight, while the combination of metribuzin, metobromuron and hand weeding gave the lowest weed dry weight per unit area of all treatments in both seasons. However, the best potato yield was obtained from the combination of

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Mishkhal, Al-Sadiq Fawzi Mayouf, and Layla Ismail Mohammad Al-Majidi. "Impact of Weed and Seeding Rates on Crop Growth Rate of Five Barley Cultivars." IOP Conference Series: Earth and Environmental Science 1262, no. 5 (2023): 052056. http://dx.doi.org/10.1088/1755-1315/1262/5/052056.

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Abstract A randomized complete block design with split-split plot arrangement was used to evaluate the effects of weeds and seeding rates on barley cultivar growth rate and yield in the College of Engineering Agricultural Sciences - University of Baghdad - Jadriyah fields in winter 2021–2022. The main plots had two treatments, weedy and weed-free, and the subplots had 120, 140, and There were significant differences in dry matter weight, crop growth rate, and yield between cultivars. The cultivar Amal had the highest grain yield per unit area (6.98 tons ha-1), dry matter weight at full floweri

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R.P. SINGH, DHIMAN MUKHERJEE, and R.K. SINGH. "Efficacy of oryzalin on weeds and yield of wheat (Triticum aestivum)." Indian Journal of Agronomy 50, no. 4 (2001): 300–302. http://dx.doi.org/10.59797/ija.v50i4.5132.

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A field experiment was conducted during the winter (rabq season of 2000-01 and 2001-02 to assess the effi- cacy of oryzalin, trisulfuron and pendimethalin as pre-emergence, and dicamba as post-emergence in late-sown wheat (Trticum aestivum L. emend. Fiori & Paol.). All herbicidal treatments reduced the density and dry weight of both narrow and broad-leaf weeds significantly from weedy check. Pre-emergence application of oryzalin at 1.25 kgha had minimum population and dry weight of weeds than other herbicides and doses. Dicamba at 0.025 kg1 ha was the most effective against broad-leaf weed

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GHAMARI, Hossein. "Weed Interference Effects on Leaves, Internode and Harvest Index of Dry Bean (Phaseolus vulgaris L.)." Notulae Scientia Biologicae 7, no. 1 (2015): 111–15. http://dx.doi.org/10.15835/nsb719415.

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The development of appropriate weed management strategies and efficient use of herbicides relies upon understanding weed-crop interactions. A field study was carried out to assess the effect of weed interference on leaves, internode and harvest index of dry bean (Phaseolus vulgaris L.). The experiment was established under a randomized complete block design with two types of weed interference treatments: plots with weeds and plots without weeds at different time intervals (0, 10, 20, 30, 40 and 50 days after crop emergence). The sigmoid Boltzmann model was used to quantify the crop traits as i

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43

N.K. CHOPRA, NlSHA CHOPRA, and HARPAL SlNGH. "Bio-efficacy of herbicide mixtures against complex weed flora in wheat (Triticum aestivum)." Indian Journal of Agronomy 53, no. 1 (2001): 62–65. http://dx.doi.org/10.59797/ija.v53i1.4836.

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A field experiment was conducted at Baraut in Uttar Pradesh during 2001 -02 and 2002-03 to study the effect of different herbicides as sole and their tank mixtures on wheat (Triticum aestivum L. emend. Fiori & Paol.). The highest grain yield of 4.49 t/ha was recorded with fenoxaprop-p-ethyl + carfentrazone (100 + 10 glha) applied 30 days after sowing, which was at par with weed-free treatment. The lowest dry weight of weeds (22.0'g/m2) and highest weed-control efficiency (84.7%) were observed with fenoxaprop-p-ethyl + carfentrazone due to control of grassy and broad-leaf weeds. Although th

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44

El-Metwally, Ibrahim M., Osama A. M. Ali, and Magdi T. Abdelhamid. "Response Of Wheat (Triticum aestivum L.) And Associated Grassy Weeds Grown In Salt-Affected Soil To Effects Of Graminicides And Indole Acetic Acid." Agriculture (Polnohospodárstvo) 61, no. 1 (2015): 1–11. http://dx.doi.org/10.1515/agri-2015-0005.

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Abstract Two field experiments were carried out in two successive seasons to examine the effect of weed management on wheat crop under saline condition and how herbicides can interact with foliar application with indole-3-acetic acid (IAA) to improve weed suppression and enhance crop growth and productivity under salinity stress. Clodinafop-propargyl was the best option to attain acceptable grassy weeds control. Increasing IAA from 0 up to 150 ppm significantly increased number and dry weight of grassy weeds in wheat after 80 days from sowing. Application of IAA at 150 ppm recorded the highest

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Majidi, Mohammad Reza, Bahram Mirshekari, Batoul Samedani, Farhad Farahvash, and Hassan Hajnajari. "Effect of four pre-planted cover crop species on weed control and population dynamics." Italian Journal of Agronomy 15, no. 3 (2020): 253–60. http://dx.doi.org/10.4081/ija.2020.1595.

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The present research was conducted to assess the competition of four cover crop species including the Festuca ovina L., Festuca rubra L., Agropyron desertorum (Fischer ex Link) Shultes, and Bromus tomentellus Boiss with the weeds as well as enhancement of their establishment. B. tomentellus with 7.7 and 8.73 t h–1 had the highest dry weight production in 2016 and 2017, respectively. In 2016, the highest reduction in the dry weight of the weeds (73%) was observed for the F. ovina, at the rate of 600 g active ingredient per ha–1 of herbicide. In 2017, the highest reduction in the dry weight of t

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Hammood, Watheq Falhi, Rafid Ahmed Abbas Al-Khaldy, Suhad Mathkoor A. Safi, and Nagham M. Al-Azawi. "Impact of Some Herbicides on Growth Indicators of Some Wheat Cultivars and Weight of Companion Weeds." IOP Conference Series: Earth and Environmental Science 1158, no. 6 (2023): 062026. http://dx.doi.org/10.1088/1755-1315/1158/6/062026.

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Abstract An experiment was implemented in the experimental field of the Department of Field Crops, College of Agricultural Engineering Sciences, University of Baghdad, Jadriya during the year 2020-2021. The study aimed to investigate the effect of some herbicides (Crash + U46-Combifiluid) combination and Axial, Weed Free and Weedy, on the companion weeds and growth indicators for three cultivars of wheat (Shame6, Samur, and GRAIME). The experiment was conducted according to a RCBD (in a split-plot arrangement with three replicates), while the cultivars represent the main treatments and herbici

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Vera, Dina Yulianti Sisca, Edhi Turmudi, and Eko Suprijono. "PENGARUH JARAK TANAM DAN FREKUENSI PENYIANGAN TERHADAP PERTUMBUHAN, HASIL KACANG TANAH (Arachis hypogaea L ) DAN POPULASI GULMA." Jurnal Ilmu-Ilmu Pertanian Indonesia 22, no. 1 (2020): 16–22. http://dx.doi.org/10.31186/jipi.22.1.16-22.

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[THE EFFECT OF PLANTING DISTANCE AND WEDDING FREQUENCY ON GROWTH, YIELD OF PEANUT (Arachis hypogaea L) AND WEED POPULATION]. This study was aimed to determine planting distance and frequency of weeding which gives the highest growth and yield of peanuts. Peanut plants were planted in the Experimental Field of the Faculty of Agriculture, Bengkulu University from October to December 2018. The study was arranged in a Complete Randomized Block Design (RCBD) with 2 factors and 3 replications. The first factor is the planting distance of 40 cm x 20 cm; 40 cm x 30 cm and 40 cm x 40 cm. The second fac

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48

Gawęda, Dorota, and Cezary A. Kwiatkowski. "Weed infestation of spring common wheat (Triticum aestivum L.) grown in monoculture depending on the cover crop and weed control method." Acta Agrobotanica 65, no. 3 (2012): 119–26. http://dx.doi.org/10.5586/aa.2012.015.

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The aim of this 3-year field study was to evaluate the effect of some stubble crops and in-crop weed control methods on the species composition, number and air-dry weight of weeds in a wheat crop grown in short-term monoculture. The study was conducted in the period 2009-2011 in the Uhrusk Experimental Farm on mixed rendzina soil classified as very good rye soil complex. It included various types of stubble crops ploughed in each year (control treatment without cover crop, white mustard, lacy phacelia, a mixture of legumes – narrow-leaf lupin + field pea) and methods of weed control in spring

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Jamriška, P. "The effect of undersowing time of clover crops and weeds on silage maize yields." Plant, Soil and Environment 48, No. 8 (2011): 361–67. http://dx.doi.org/10.17221/4381-pse.

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In field experiments conducted on loamy luvic chernozem (170 m altitude, 48&deg;34&rsquo; N 17&deg;45&rsquo; E), the effects of undersowing time (5 days after maize was sown and into emerged stand) of lucerne, red clover and sainfoin on silage maize dry matter have been studied. The total dry matter yields were affected by time of undersowing of clover crops. The stands undersown after emergence of maize gave higher yields than former time of undersowing. The late time of undersowing improved conditions for growth of maize and formation of its yield. The number of maize plants

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Burnside, Orvin C., Melvin J. Wiens, Bobby J. Holder, et al. "Critical periods for weed control in dry beans (Phaseolus vulgaris)." Weed Science 46, no. 3 (1998): 301–6. http://dx.doi.org/10.1017/s0043174500089451.

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Weed removal experiments in dry edible beans were conducted during 1992 and 1993 at Crookston and Staples, MN. Ten manual weed removal treatments were studied to determine when a natural infestation of weeds first reduced dry bean yield, and when weed removal could be discontinued without further loss of seed yield. Major weeds in order of average biomass production on weedy check plots at dry bean harvest over locations and years were wild mustard, foxtail spp., redroot pigweed, common ragweed, wild buckwheat, hairy nightshade, and common lambsquarters. Hairy nightshade also emerged late in t

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