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Journal articles on the topic 'Microirrigation. Irrigation'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Solé-Torres, Duran-Ros, Arbat, Pujol, Ramírez de Cartagena, and Puig-Bargués. "Assessment of Field Water Uniformity Distribution in a Microirrigation System using a SCADA System." Water 11, no. 7 (2019): 1346. http://dx.doi.org/10.3390/w11071346.

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Microirrigation is an efficient irrigation technique, although when wastewater is used the probability of operation problems such as emitter clogging increases. In most of microirrigation systems, control of irrigation performance is manual and sporadic, therefore clogging problems may not be detected at the right time. As it is easier to prevent emitter clogging if it is detected earlier, close monitoring of pressure and flow rates in microirrigation systems is an important way to achieve microirrigation system requirements and accomplish higher irrigation efficiencies. A supervisory control

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2

Romashchenko, M. I., A. P. Shatkovskyi, V. V. Vasiuta, et al. "State and prospects of microirrigation’ application in the context of climate change." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 2 (December 21, 2020): 31–38. http://dx.doi.org/10.31073/mivg202002-262.

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The article provides a comprehensive analysis of the current state, reasonably promising directions for the development of microirrigation methods in Ukraine through the prism of climatic transformations. The dynamics of the areas of agricultural crops irrigated using microirrigation methods in the world and in Ukraine, as well as the structure of the areas of micro-irrigation in the context of regions of Ukraine and types of crops are shown. The largest agricultural enterprises, which are domestic leaders in the introduction of microirrigation methods, equipment manufacturers and suppliers of

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Romashchenko, M. I., A. P. Shatkovskyi, V. V. Vasiuta, et al. "SCIENTIFIC SCHOOL OF MICROIRRIGATION: ACHIEVEMENTS AND DEVELOPMENT PROSPECTS." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 2 (December 12, 2019): 68–77. http://dx.doi.org/10.31073/mivg201902-199.

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Microirrigation is by far the most progressive irrigation method, with efficiencies reaching 92-98 %. According to the International Commission on Irrigation and Drainage, the world's agricultural land, which is irrigated through micro-irrigation systems, is constantly growing and now stands at over 20 million hectares. By the "Irrigation and drainage strategy in Ukraine until 2030" micro-irrigation methods are defined as one of the strategic directions of the state policy of the branch. Research on the direction of "micro-irrigation of crops" in Ukraine began from the late 60's of the l

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Gilman, Edward F., Gary W. Knox, Catherine A. Neal, and Uday Yadav. "Microirrigation Affects Growth and Root Distribution of Trees in Fabric Containers." HortTechnology 4, no. 1 (1994): 43–45. http://dx.doi.org/10.21273/horttech.4.1.43.

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Lagertroemia indica L. × fauriei Koehne (`Natchez' crape myrtle) crown width increased after 13 months as irrigation frequency increased from every 3 days to every day, and the irrigated area around the fabric container increased from 20% to 100% of the circular area within 20 cm beyond the container. Restricting irrigation to within the fabric container plus 20% of the area 20 cm beyond the container edge resulted in less height and width for crape myrtle, but had no effect on root growth, compared to irrigating 100% of area 20 cm beyond the container. Restricting the pattern of irrigation to

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Beeson, Richard C. "105 PULSING MICROIRRIGATION IN CONTAINERS INCREASES TREE GROWTH." HortScience 29, no. 5 (1994): 443c—443. http://dx.doi.org/10.21273/hortsci.29.5.443c.

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Pulsing consists of applying subvolumes of a normal daily irrigation volume several times per day. Previous studies have shown splitting overhead irrigation into two subapplications increased growth of container-grown landscape ornamentals in the southeastern U.S. In Florida, water restrictions prohibit overhead irrigation during the critical mid-afternoon when irrigation is most beneficial. Using individual microirrigation spray stakes, only 25% of the water required for overhead irrigation per bed area was necessary to produce similar plants if irrigated once per day. When the same daily vol

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SMAJSTRLA, ALLEN G. "IMPLEMENTATION OF MICROIRRIGATION FOR CITRUS PRODUCTION IN FLORIDA." HortScience 25, no. 9 (1990): 1183F—1183. http://dx.doi.org/10.21273/hortsci.25.9.1183.

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The use of microirrigation in Florida citrus production has increased rapidly in recent years. Most new groves are now being developed with microspray or drip irrigation. Many existing sprinkler and seepage (subirrigation) systems have also been converted to micro irrigation. Although water management districts have encouraged the use of micro irrigation for water conservation, research results which solved problems with the practical implementation of this technology and which demonstrated economic incentives are primarily responsible for its popularity in Florida citrus production. Research

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SMAJSTRLA, ALLEN G. "IMPLEMENTATION OF MICROIRRIGATION FOR CITRUS PRODUCTION IN FLORIDA." HortScience 25, no. 9 (1990): 1183f—1183. http://dx.doi.org/10.21273/hortsci.25.9.1183f.

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The use of microirrigation in Florida citrus production has increased rapidly in recent years. Most new groves are now being developed with microspray or drip irrigation. Many existing sprinkler and seepage (subirrigation) systems have also been converted to micro irrigation. Although water management districts have encouraged the use of micro irrigation for water conservation, research results which solved problems with the practical implementation of this technology and which demonstrated economic incentives are primarily responsible for its popularity in Florida citrus production. Research

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Khatun, S., SU Ahmed, SMA Faiz, and AHM Mustafizur Rahmana. "Impacts of tillage operations and microirrigation practices on weed infestation of BRRI Dhan 28." Dhaka University Journal of Biological Sciences 24, no. 2 (2015): 131–36. http://dx.doi.org/10.3329/dujbs.v24i2.46320.

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An experiment was conducted with BRRI dhan 28 following four irrigation treatments (flood, drip, alternate wetting and drying, sprinkler) and two tillage methods (conventional or puddled and unpuddled). Highest number of weed infestation over conventional tillage was observed when herbicide was not applied. Weed biomass was recorded maximum in sprinkler irrigation followed by alternate wetting and drying (AWD) and flood irrigation. The main type of weed in the rice field was sedges. Weed infestation at 20 and 40 days after herbicide application was found to be the highest due to sprinkler irri

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9

Rosa, Jadir Aparecido, Allen George Smajstrla, Kenneth Leonard Campbell, and Salvadore Jose Locascio. "Evaluation of a computer model to simulate water table response to subirrigation." Pesquisa Agropecuária Brasileira 37, no. 12 (2002): 1743–50. http://dx.doi.org/10.1590/s0100-204x2002001200010.

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The objective of this work was to evaluate the water flow computer model, WATABLE, using experimental field observations on water table management plots from a site located near Hastings, FL, USA. The experimental field had scale drainage systems with provisions for subirrigation with buried microirrigation and conventional seepage irrigation systems. Potato (Solanum tuberosum L.) growing seasons from years 1996 and 1997 were used to simulate the hydrology of the area. Water table levels, precipitation, irrigation and runoff volumes were continuously monitored. The model simulated the water mo

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Funt, Richard C., Mark C. Schmittgen, and Glen O. Schwab. "Raised Beds and Microirrigation Influence Peach Production." HortScience 32, no. 4 (1997): 677–82. http://dx.doi.org/10.21273/hortsci.32.4.677.

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The performance of peach trees [Prunus persica (L.) Batsch cv. Redhaven/Siberian C.] on raised beds as compared to the conventional flat (unraised) orchard floor surface was evaluated from 1982 to 1991. The raised bed was similar to the flat bed in cation exchange capacity (CEC), Ca, P, K, Mg, B, and Zn soil levels in the 0-15 cm depth. Microirrigation, using two 3.7 L.h-1 emitters per tree vs. no irrigation, was applied to trees planted in a north-south orientation on a silt loam, noncalcareous soil. Raised beds increased trunk cross-sectional area (TCA) and yield-efficiency over 5 years. Irr

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Ferrarezi, Rhuanito Soranz, Thomas C. Geiger, Jayar Greenidge, Shamali Dennery, Stuart A. Weiss, and Gustavo H. S. Vieira. "Microirrigation Equipment for Okra Cultivation in the U.S. Virgin Islands." HortScience 55, no. 7 (2020): 1045–52. http://dx.doi.org/10.21273/hortsci15021-20.

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Drip irrigation presents higher distribution efficiency than sprinkler irrigation. Proper system design and the use of pressure-compensating emitters have important roles in irrigation uniformity and efficiency, which directly affect plant growth. This study evaluated the performance of four pressure-compensating and noncompensating emitters and the effects of these irrigation equipment on the yield of three okra [Abelmoschus esculentus] varieties cultivated in the U.S. Virgin Islands. Trials were performed in two seasons (Spring and Fall 2016), and tested four types of irrigation equipment (f

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12

Beeson, R. C., and J. Haydu. "Cyclic Microirrigation in Container-grown Landscape Plants Improves Plant Growth and Water Conservation." Journal of Environmental Horticulture 13, no. 1 (1995): 6–11. http://dx.doi.org/10.24266/0738-2898-13.1.6.

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Abstract Four tree (Acer rubrum L., Ulmus alata Michx., Quercus virginiana Mill, and Lagerstroemia indica L.) and two landscape shrub species (Rhododendron indicum L. ‘Formosa’ and Elaeagnus pungens Thunb.) were grown in 10-liter (#3) polyethylene containers. Plants were irrigated with overhead impact sprinklers (control) or with individual low volume spray stakes. Microirrigated treatments consisted of same or double volume per day per container as controls applied as one to three cyclic subvolumes. Shrub growth was seldom influenced by irrigation treatment. Xeric tree species (U. alata and Q

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Hanson, Blaine R., Jan Hopmans, and Jirka Simunek. "Effect of Fertigation Strategy on Nitrogen Availability and Nitrate Leaching using Microirrigation." HortScience 40, no. 4 (2005): 1096A—1096. http://dx.doi.org/10.21273/hortsci.40.4.1096a.

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Injection during the middle one-third or the middle one-half of the irrigation is recommended for fertigation using microirrigation. However, short fertigation events are commonly used by growers. This project investigated the effect of fertigation practices on nitrate availability and leaching. The first phase of the project (completed) determined nitrate distributions in the root zone for four microirrigation systems, three soil types, and five fertigation strategies using the HYDRUS-2D computer simulation model. Fertigation strategies included injecting for short time periods at the beginni

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Ya.E., Pulatov. "Water-saving irrigation technologies and water use efficiency in agriculture." Ekologiya i stroitelstvo 4 (2017): 21–26. http://dx.doi.org/10.35688/2413-8452-2017-04-004.

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Results of researches of water saving up technologies for irrigation of agricultural crops and effective utilization of water resources in the Tajikistan are described. The comparative estimation of usage methods of water savings is spent and proved that the cheapest method of additional safeguarding of volume of water (up 1000 м3) appeared during introduction of water saving up technologies for irrigation at which expenses is only 1…5 US dollars. It is established that on prospect for maintenance of food safety for Tajikistan it is necessary to develop the suitable new earths for irrigation e

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Dantas Neto, José, Rigoberto M. de Matos, Patrícia F. da Silva, Antonio S. de Lima, Carlos A. V. de Azevedo, and Luciano M. F. Saboya. "Growth and yield of cactus pear under irrigation frequencies and nitrogen fertilization." Revista Brasileira de Engenharia Agrícola e Ambiental 24, no. 10 (2020): 664–71. http://dx.doi.org/10.1590/1807-1929/agriambi.v24n10p664-671.

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ABSTRACT Microirrigation associated with nitrogen (N) fertilization aims to meet the water and nutritional demands of cactus pear. The objective of this study was to evaluate the growth and yield of cactus pear (Opuntia ficus-indica) irrigated by microirrigation and fertilized with N. The experiment was conducted in the field at the Poço Redondo farm, Santa Luzia, PB, Brazil (6° 52’ 27’’ S and 36º 56’ 0’’ W and altitude of 299 m), between April and December 2017. The experimental design was in randomized blocks in a 5 x 2 factorial scheme, with five irrigation frequencies (7, 14, 21, 28 and 35

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Batchelor, Charles, Christopher Lovell, and Monica Murata. "Simple microirrigation techniques for improving irrigation efficiency on vegetable gardens." Agricultural Water Management 32, no. 1 (1996): 37–48. http://dx.doi.org/10.1016/s0378-3774(96)01257-7.

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17

Klimek, Andrzej, and Stanisław Rolbiecki. "Soil mites (Acari) on plantations of chokeberry and black currant under microirrigation." Biological Letters 46, no. 2 (2009): 89–96. http://dx.doi.org/10.2478/v10120-009-0004-2.

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Soil mites (Acari) on plantations of chokeberry and black currant under microirrigationBushes of black currant (Ribes nigrum) were slightly higher and wider, and their leaves had a higher content of major nutrients than chokeberry (Aronia melanocarpa). Soil samples were collected in 2004, in spring, summer and autumn, i.e. 3×20 samples from each experimental variant. Three irrigation variants were compared: no irrigation (C), drip irrigation (D), and micro-jet sprinkling (M). In the soil of the black currant plantation, the density of mites was higher (in variants C and D), as compared to the

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Locascio, Salvadore J. "Management of Irrigation for Vegetables: Past, Present, and Future." HortTechnology 15, no. 3 (2005): 482–85. http://dx.doi.org/10.21273/horttech.15.3.0482.

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Vegetables are grown throughout the U.S. on various soil types and in various climates. Irrigation is essential to supplement rainfall in all areas to minimize plant water stress. In the U.S., irrigated vegetable production accounts for about 1.9 million ha or 7.5% of the irrigated area. California, Florida, Idaho, Washington, Texas, Nebraska, Oregon, Wisconsin, and Arizona account for 80% of the U.S. production of irrigated vegetables. In the U.S., surface and subsurface (seepage) irrigation systems were used initially and are currently used on 45% of all irrigated crops with a water use effi

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Jeznach, Jerzy. "Some maintenance problems of the drip irrigation in Poland." Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation 38, no. 1 (2007): 41–47. http://dx.doi.org/10.2478/v10060-008-0021-6.

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Some maintenance problems of the drip irrigation in Poland Drip irrigation system will play in the future a significant role in fulfilling the requirements of intensive, energysaving agricultural production. Total area under microirrigation in Poland can be now estimated as about 10 000 hectares. Drip irrigation is applied mainly in orchards, vegetable farms and greenhouses. The investigations on drip irrigation have shown a high infl uence of the agricultural conditions on the operation and reliability and productivity effects of the irrigation system. Paper present the investigation of the o

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Million, Jeff B., and Thomas H. Yeager. "Periodic Versus Real-time Adjustment of a Leaching Fraction-based Microirrigation Schedule for Container-grown Plants." HortScience 55, no. 1 (2020): 83–88. http://dx.doi.org/10.21273/hortsci14402-19.

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Two experiments were conducted to determine if a leaching fraction (LF)-guided irrigation practice with fixed irrigation run times between LF tests (LF_FX) could be improved by making additional adjustments to irrigation run times based on real-time weather information, including rain, using an evapotranspiration-based irrigation scheduling program for container production (LF_ET). The effect of the two irrigation practices on plant growth and water use was tested at three target LF values (10%, 20%, and 40%). For both Viburnum odoratissimum (Expt. 1) and Podocarpus macrophyllus (Expt. 2) grow

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Pires, Regina C. de M., Décio Bodine Junior, Emílio Sakai, Heloísa L. Villar, Tonny J. A. da Silva, and Flávio B. Arruda. "Effect of trickle irrigation on root development of the wet bulb and 'pera' orange tree yield in the state of São Paulo, Brazil." Engenharia Agrícola 31, no. 6 (2011): 1096–103. http://dx.doi.org/10.1590/s0100-69162011000600007.

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The aim of this study was to evaluate the effect of different microirrigation designs on root system distribution in wet bulb region, orange orchard yield and quality of orange fruits. The experiment was installed as random blocks with five treatments and four replicates in an orchard of 'Pêra' orange trees grafted on 'Cleopatra' mandarin rootstock. The treatments consisted of: one drip line (T1), two drip lines (T2), four drip lines (T3) per planting row, microsprinkler irrigation (T4) and without irrigation (T5). Irrigation treatments favored yield and ºBrix. The treatment with a single drip

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Bosch, Darrell J., Norris L. Powell, and F. Scott Wright. "An Economic Comparison of Subsurface Microirrigation with Center Pivot Sprinkler Irrigation." Journal of Production Agriculture 5, no. 4 (1992): 431–37. http://dx.doi.org/10.2134/jpa1992.0431.

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Saad, João Carlos Cury, and Evanize Rodrigues Castro. "WATER AND ENERGY SAVINGS IN MICROIRRIGATION SYSTEMS DESIGN USING OPTIMIZATION MODELS." International Journal for Innovation Education and Research 8, no. 6 (2020): 394–417. http://dx.doi.org/10.31686/ijier.vol8.iss6.2434.

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The main disadvantage of trickle irrigation systems is its comparatively high initial cost, which depends on the layout, design, and management of its hydraulic network. Designing the sub-main and lateral lines aiming the emitter uniformity maximization can reduce the microirrigation system costs. This research aimed to compare linear and nonlinear programming models and maximization versus minimization criteria to optimize the crop net benefit, considering the water and energy savings. Two versions of LP and NLP models were developed: the first minimized the equivalent annual cost of the irri

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Csizinszky, A. A. "Microirrigation and Antitranspirant Rates and Cultivar Effects on Tomato Yields on Sand." HortScience 32, no. 3 (1997): 518D—518. http://dx.doi.org/10.21273/hortsci.32.3.518d.

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Two tomato (Lycopersicon esculentum Mill.) cvs. Agriset 761 and Equinox, were grown in spring and fall 1996 with two microirrigation rates 1x (HI) and 0.75x (LO) of the open pan evaporation and sprayed either weekly or biweekly with Anti-Stress 2000 (acrylic polymer) at 2.33 L·ha–1 in 280 to 561 L·ha–1 H2O during the first 10 weeks of the season. Tomato yields were similar with HI or LO irrigation rate and with antitranspirant sprays or water control. In both seasons, `Equinox' had a higher early but lower seasonal total marketable yield than `Agriset 761' (P ≤ 0.05). Residual soil concentrati

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Solé-Torres, Carles, Freddie R. Lamm, Miquel Duran-Ros, Gerard Arbat, Francisco Ramírez de Cartagena, and Jaume Puig-Bargués. "Assessment of Microirrigation Field Distribution Uniformity Procedures for Pressure-Compensating Emitters under Potential Clogging Conditions." Transactions of the ASABE 64, no. 3 (2021): 1063–71. http://dx.doi.org/10.13031/trans.14486.

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HighlightsDistribution uniformity of the lower quartile (DUlq) was assessed in three microirrigation subunits with three procedures that used different locations and different numbers of sampled emitters.Using reclaimed effluent as the water source, performance was periodically measured for a total duration of 1000 h.Emitter clogging and the locations of sampled emitters greatly affected DUlq.None of the procedures accurately assessed DUlq if more than 4% of the emitters were fully clogged.Abstract. Proper water distribution uniformity is important for successful use of microirrigation systems

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Dukes, Michael D., Lincoln Zotarelli, and Kelly T. Morgan. "Use of Irrigation Technologies for Vegetable Crops in Florida." HortTechnology 20, no. 1 (2010): 133–42. http://dx.doi.org/10.21273/horttech.20.1.133.

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Major horticultural crops in Florida are vegetables, small fruit, melons, and tree fruit crops. Approximately half of the agricultural area and nearly all of the horticultural crop land is irrigated. Irrigation systems include low-volume microirrigation, sprinkler systems, and subsurface irrigation. The present review was divided into two papers, in which the first part focuses on vegetable crop irrigation and the second part focuses on fruit tree crop irrigation. This first part also provides an overview of irrigation methods used in Florida. Factors affecting irrigation efficiency and unifor

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Morgan, Kelly T., Lincoln Zotarelli, and Michael D. Dukes. "Use of Irrigation Technologies for Citrus Trees in Florida." HortTechnology 20, no. 1 (2010): 74–81. http://dx.doi.org/10.21273/horttech.20.1.74.

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Florida is the most important center of processed citrus (Citrus spp.) production in the United States, and all of the crop is irrigated. Irrigation systems include low-volume microirrigation, sprinkler systems, and subsurface irrigation. This review details the relative irrigation efficiencies and factors affecting irrigation uniformity such as design and maintenance. A wide range of soil moisture sensors (e.g., tensiometers, granular matrix, and capacitance) are currently being used for citrus in the state. The use of these sensors and crop evapotranspiration estimation using weather informa

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Schoene, Gisele, Thomas Yeager, and Dorota Haman. "Survey of Container Nursery Irrigation Practices in West-central Florida: An Educational Opportunity." HortTechnology 16, no. 4 (2006): 682–85. http://dx.doi.org/10.21273/horttech.16.4.0682.

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A survey was conducted of nursery operators participating in workshops in west-central Florida. The purpose of the survey was to identify the irrigation best management practices (BMPs) adopted by container nurseries in west-central Florida and obtain information regarding emphasis of future extension educational programs. Workshops were conducted in Hillsborough County, Fla., and Manatee County, Fla., and participation was voluntary. Respondents were asked about BMPs used in the nurseries according to the irrigation system used and it was found that the majority of the nurseries relied on wel

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Saad, João Carlos Cury, and Miguel A. Mariño. "DESIGN OF MICROIRRIGATION SYSTEMS IN SLOPING LANDS USING LINEAR PROGRAMMING." IRRIGA 7, no. 3 (2002): 214–25. http://dx.doi.org/10.15809/irriga.2002v7n3p214-225.

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DESIGN OF MICROIRRIGATION SYSTEMS IN SLOPING LANDSUSING LINEAR PROGRAMMING[1] João CarlosCury SaadDepartment of Rural Engineering, College of Agricultural Sciences, São Paulo State University, P.O. 237, CEP 18603-970, Botucatu, SP. E-mail: joaosaad@fca.unesp.brMiguel A. MariñoDepartment of Land, Air and Water Resources and Department of Civil & Environmental Engineering, University of California, Davis, CA 95616, USA. E-mail: mamarino@ucdavis.edu 1 Summary When the area to be irrigated has a high slope gradient in the manifold line direction, an option is to use a tappered pipeline to redu

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Williamson, Jeffrey G., and Jonathan H. Crane. "Best Management Practices for Temperate and Tropical/Subtropical Fruit Crops in Florida: Current Practices and Future Challenges." HortTechnology 20, no. 1 (2010): 111–19. http://dx.doi.org/10.21273/horttech.20.1.111.

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A wide variety of temperate, subtropical, and tropical fruit crops are grown commercially in Florida. Farm size ranges from large commercial operations exceeding 100 acres to small 1- or 2-acre “estate” farms. Irrigation and fertilization practices vary widely with crop, soil type, and management philosophy. However, many growers are adopting practices such as microirrigation, fertigation, and other technologies, which, if properly used, should reduce water and fertilizer inputs and minimize leaching and runoff of fertilizers and pesticides. Although fertilizer and irrigation recommendations e

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Bergonzoli, Simone, Massimo Brambilla, Elio Romano, et al. "Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance." Agronomy 10, no. 8 (2020): 1150. http://dx.doi.org/10.3390/agronomy10081150.

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Irrigation with wastewater can strongly contribute to the reduction of water abstraction in agriculture with an especial interest in arid and semiarid areas. However, its use can have drawbacks to both soil and micro-irrigation systems, especially when the total solids in the wastewater are high, such as in digestate liquid fractions (DLF) from plant material. The aim of this study was thus to evaluate the performances of a serpentine shaped micro-emitter injected with a hydrocyclone filtered DLF (HF-DLF) from corn + barley biomass and evaluate the traits of the liquid released within a 8-h ir

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Duenhas, Luiza Helena, and João Carlos Cury Saad. "ECONOMIC VIABILITY AND SELECTION OF IRRIGATION SYSTEMS USING SIMULATION AND STOCHASTIC DOMINANCE." IRRIGA 14, no. 4 (2009): 422–30. http://dx.doi.org/10.15809/irriga.2009v14n4p422-430.

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ECONOMIC VIABILITY AND SELECTION OF IRRIGATION SYSTEMS USING SIMULATION AND STOCHASTIC DOMINANCE Luiza Helena Duenhas1 ; João Carlos Cury Saad21Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brasília, DF, luizad@cnpq.br2Departamento de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Botucatu, SP 1 SUMMARY In humid areas, irrigation systems are used to increase the crop yield. The selection of irrigation system to be used is a decision made under uncertainty. This paper shows a procedure that is an association betweenMonte Carlosimulation met

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Haydu, J. J., and R. C. Beeson. "Economic Feasibility of Micro-Irrigating Container-Grown Landscape Plants." Journal of Environmental Horticulture 15, no. 1 (1997): 23–29. http://dx.doi.org/10.24266/0738-2898-15.1.23.

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Abstract While past research has examined certain technical efficiencies, little effort has been directed at the economic feasibility of various irrigation systems for container-grown landscape plants. Two irrigation systems, cyclic micro-irrigation and overhead impact sprinkler, were examined to determine economic advantages of one system over the other for container-grown landscape plants. Seedlings of Acer rubrum L. and Quercus virginiana Mill. produced in #3, #7, #10 and #15 (10.2, 26.5, 37.8, and 56.8 liter) polyethylene containers were considered. A two-step methodology was used to estab

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Lamm, Freddie R., Paul D. Colaizzi, Ronald B. Sorensen, et al. "A 2020 Vision of Subsurface Drip Irrigation in the U.S." Transactions of the ASABE 64, no. 4 (2021): 1319–43. http://dx.doi.org/10.13031/trans.14555.

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HighlightsSubsurface drip irrigation (SDI) has continued to expand in irrigation area within the U.S. during the last 15 years.Research with SDI continues for multiple crop types (fiber, grain and oilseed, horticultural, forage, and turf).SDI usage on many crops has matured through research and development of appropriate strategies and technologiesDespite some persistent challenges to successful use of SDI, important opportunities exist for further adoption.Abstract. Subsurface drip irrigation (SDI) offers several advantages over alternative irrigation systems when it is designed and installed

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Neilsen, G. H., D. Neilsen, and F. Peryea. "Response of Soil and Irrigated Fruit Trees to Fertigation or Broadcast Application of Nitrogen, Phosphorus, and Potassium." HortTechnology 9, no. 3 (1999): 393–401. http://dx.doi.org/10.21273/horttech.9.3.393.

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Traditionally, broadcast or foliar fertilizer applications have been used to improve or sustain the nutrition of many irrigated, deciduous fruit tree orchards in western North America. Recent developments, including adoption of low-pressure microirrigation systems and planting at higher densities [especially for apple (Malus domestica Borkh.)], have increased interest in controlled application of fertilizers directly with irrigation (fertigation). Recent fertigation research in western North America is reviewed, emphasizing results from high-density apple orchards. Fertigation and traditional

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Boman, Brian J., Mongi Zekri, and Ed Stover. "Managing Salinity in Citrus." HortTechnology 15, no. 1 (2005): 108–13. http://dx.doi.org/10.21273/horttech.15.1.0108.

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Although citrus (Citrus spp.) is sensitive to salinity, acceptable production can be achieved with moderate salinity levels, depending on the climate, scion cultivar, rootstock, and irrigation-fertilizer management. Irrigation scheduling is a key factor in managing salinity in areas with salinity problems. Increasing irrigation frequency and applying water in excess of the crop water requirement are recommended to leach the salts and minimize the salt concentration in the root zone. Overhead sprinkler irrigation should be avoided when using water containing high levels of salts because salt re

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Funt, Richard C., M. Scott Biggs, and Mark C. Schmittgen. "Emitter Placement and Calcium Plus Boron Solution Affect Elemental Content of Spur `Delicious' Apples." HortScience 32, no. 3 (1997): 520D—520. http://dx.doi.org/10.21273/hortsci.32.3.520d.

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Physiological disorders of apples, such as cork spot and bitter pit, are a result of low soil calcium, low or excessive soil moisture, large fruit size, and environmental conditions. We report on the effect of microirrigation treatments on apple fruit when irrigation is applied as water alone or water plus a calcium (Ca)/boron (B) solution with applications applied over the tree canopy or under the tree canopy. Apples were harvested from trees in their 4th to 7th leaf and the number of fruit and size of fruit varied from year to year. In most years, there were no significant differences among

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Warner, Laura A., Alexa J. Lamm, Peyton Beattie, Sarah A. White, and Paul R. Fisher. "Identifying Opportunities to Promote Water Conservation Practices among Nursery and Greenhouse Growers." HortScience 53, no. 7 (2018): 958–62. http://dx.doi.org/10.21273/hortsci12906-18.

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Nursery and greenhouse growers have an important role to play in conserving water resources. Many technologies are available to help growers conserve water. Yet, within the industry, there may be varying levels of knowledge about a specific strategy, along with inconsistent adoption and continued use. An understanding of these factors can be incorporated into educational programming for this audience. This study evaluated the reported knowledge level of U.S. greenhouse and nursery growers about eight specific water conservation technologies and then explored the rate at which growers had adopt

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Meador, Dustin P., Paul R. Fisher, Philip F. Harmon, Natalia A. Peres, Max Teplitski, and Charles L. Guy. "Survey of Physical, Chemical, and Microbial Water Quality in Greenhouse and Nursery Irrigation Water." HortTechnology 22, no. 6 (2012): 778–86. http://dx.doi.org/10.21273/horttech.22.6.778.

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The objective was to analyze the physical, chemical, and biological water quality in horticulture irrigation systems in 24 ornamental plant greenhouses and nurseries in the United States. At each greenhouse or nursery, water was collected from up to five points (“Sample Types”) which included 1) “Source” from municipal or private well supplies, 2) “Tank” from enclosed storage containers, 3) “Subirrigation” from water applied to crops in ebb-and-flood systems, 4) “Furthest Outlet” that were irrigation emitters most distant from the Source, and 5) “Catchment Basin” from open outdoor retention ar

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Lamm, Freddie R., and Danny H. Rogers. "Longevity and Performance of a Subsurface Drip Irrigation System." Transactions of the ASABE 60, no. 3 (2017): 931–39. http://dx.doi.org/10.13031/trans.12237.

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Abstract. System longevity is an important economic factor to minimize amortized investment costs for subsurface drip irrigation (SDI), especially when growing lower-value commodity crops such as field corn. Kansas State University established a research site in 1989 at a research center to study SDI. One research study area was used for continuous production of SDI corn for 27 seasons without dripline replacement. Normalized plot flowrates for 23 separate plots after 27 seasons were within ±5% of their first annually measured value. Hydraulic performance of the driplines and emitters was meas

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Stanley, C. D., and G. A. Clark. "AUTOMATED CONTROL OF WATER TABLE LEVELS FOR SUBIRRIGATED TOMATO PRODUCTION USING THE FULLY ENCLOSED SEEPAGE SYSTEM." HortScience 27, no. 6 (1992): 643f—643. http://dx.doi.org/10.21273/hortsci.27.6.643f.

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The use of the recently developed fully-enclosed seepage subirrigation system for fresh market tomato production has demonstrated an improved ability to maintain a water table at a desired level (when compared to conventional ditch-conveyed seepage subirrigation) by means of more precisely controlled application and a greater uniformity throughout the field. This is achieved through use of microirrigation tubing rather than open ditches to convey water to raise the water table to desired levels. When manually controlled, the system has shown to save 30-40% in irrigation amounts primarily due t

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Csizinszky, A. A. "Tomato Production on Sand with Polyethylene Mulch, Microirrigation, and Using Banded Compost as Soil Amendment." HortScience 33, no. 4 (1998): 596d—596. http://dx.doi.org/10.21273/hortsci.33.4.596d.

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Tomatoes, cv. Agriset 761, were grown in Spring and Fall 1996 at three compost rates, 0x, 1x and 2x (1x = 12 t·ha-1). Production system was the full-bed polyethylene mulch with micro- (trickle-) irrigation. The crop in each treatment received (kg·ha-1) 73 N, 34 P, and 121 K from preplant dry, and 225 N and 372 K from injected liquid fertilizers in 117 days during the spring and in 107 days in the fall. Plant growth (plant height) was best with the lx compost rate. Fruits were harvested five times in the spring and four times in the fall. Compost amendments in both seasons delayed fruit maturit

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Rolbiecki, Roman, Cezary Podsiadło, Andrzej Klimek, and Stanisław Rolbiecki. "Comparison of response of Scots pine seedlings to micro-irrigation and organic fertilization on a post-arable land at zoo-melioration treatment applied under rainfall-thermal conditions of Bydgoszcz and Stargard Szczeciński." Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation 40, no. 1 (2008): 55–65. http://dx.doi.org/10.2478/v10060-008-0037-y.

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Comparison of response of Scots pine seedlings to micro-irrigation and organic fertilization on a post-arable land at zoo-melioration treatment applied under rainfall-thermal conditions of Bydgoszcz and Stargard Szczeciński Comparison of response of Scots pine seedlings to micro-irrigation and organic fertilization on a post-arable land at zoo-melioration treatment applied under rainfall-thermal conditions of Bydgoszcz and Stargard Szczeciński. The aim of the study was to determine the effect of microirrigation (microjet sprinkling and drip irrigation) and organic fertilization (compost prepar

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CARR, M. K. V. "THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF CITRUS (CITRUS SPP.): A REVIEW." Experimental Agriculture 48, no. 3 (2012): 347–77. http://dx.doi.org/10.1017/s0014479712000038.

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SUMMARYThe results of research on the water relations and irrigation need of Citrus spp. are collated and reviewed in an attempt to link fundamental studies on crop physiology to drought mitigation and irrigation practices. Background information is given on the centres of origin (south-east Asia) and of production of citrus (areas with subtropical Mediterranean-type climates). The effects of water stress on the development processes of the crop are summarised followed by reviews of the plant water relations, crop water requirements, water productivity and irrigation systems. The topic is comp

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Zhou, Bo, Di Wang, Tianzhi Wang, and Yunkai Li. "Chemical Clogging Behavior in Drip Irrigation Systems Using Reclaimed Water." Transactions of the ASABE 61, no. 5 (2018): 1667–75. http://dx.doi.org/10.13031/trans.12902.

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Abstract. Reusing reclaimed water in agricultural irrigation has become an effective way to alleviate water shortages in agriculture. However, the multiple substances in reclaimed water and their coupling effects easily lead to emitter clogging when using drip irrigation technology. The microorganisms present in reclaimed effluents secrete extracellular substances and absorb large amounts of solid particles, ions, nutrients, and organic matter and thus become the main part of the clogging substance. Meanwhile, traditional drip irrigation systems converted from irrigation to both irrigation and

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Leib, Brian, Wesley Wright, Tim Grant, et al. "Rainwater Harvesting with Solar and Gravity Powered Irrigation for High Tunnels." Applied Engineering in Agriculture 36, no. 4 (2020): 489–98. http://dx.doi.org/10.13031/aea.13969.

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HIGHLIGHTS Captured rainwater supplied nearly all the irrigation required for high tunnels in Tennessee. Solar pumping and/or gravity flow adequately supplied the pressure required for irrigation in high tunnels. Rainwater harvesting costs need to be reduced in order to be more competitive with alternate water sources. Abstract . High tunnels use clear plastic film over a large metal frame to trap solar radiation as heat in order to extend the crop growing season and reduce environmental stress. High tunnels differ from high tech greenhouses in that they use the natural soil as the growing med

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Santos, Bielinski M., and James P. Gilreath. "Effects of soil moisture and length of irrigation on soil wetting to deliver fumigants through microirrigation lines in sandy spodosols." Agricultural Sciences 02, no. 04 (2011): 533–35. http://dx.doi.org/10.4236/as.2011.24069.

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Silva, Fernanda Oliveira, and João Batista Tolentino Júnior. "OTIMIZAÇÃO DO DIMENSIONAMENTO HIDRÁULICO DE UMA SUBUNIDADE DE IRRIGAÇÃO LOCALIZADA." IRRIGA 25, no. 4 (2020): 697–703. http://dx.doi.org/10.15809/irriga.2020v25n4p697-703.

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OTIMIZAÇÃO DO DIMENSIONAMENTO HIDRÁULICO DE UMA SUBUNIDADE DE IRRIGAÇÃO LOCALIZADA   FERNANDA OLIVEIRA DA SILVA1 E JOÃO BATISTA TOLENTINO JÚNIOR2  [1] Aluna de Pós-Graduação do Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais, Universidade Federal de Santa Catarina, Rodovia Ulysses Gaboardi, Km 3, Caixa postal 101, CEP 89520-000, Curitibanos, SC, Brasil. E-mail: fernanda.oliveeira.silva@gmail.com 2 Professor Adjunto, Departamento de Agricultura, Biodiversidade e Florestas, Universidade Federal de Santa Catarina, Rodovia Ulysses Gaboardi, Km 3,

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CHU, Lin-lin, Yao-hu KANG, and Shu-qin WAN. "Effect of different water application intensity and irrigation amount treatments of microirrigation on soil-leaching coastal saline soils of North China." Journal of Integrative Agriculture 15, no. 9 (2016): 2123–31. http://dx.doi.org/10.1016/s2095-3119(15)61263-1.

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Alves, Dinara Grasiela, Marinaldo Ferreira Pinto, Ana Paula Alves Barreto Damasceno, Conan Ayade Salvador, Tarlei Arriel Botrel, and Leonardo Duarte Batista da Silva. "ANÁLISE DOS MODELOS MATEMÁTICOS UTILIZADOS NO DIMENSIONAMENTO DE EMISSORES DO TIPO MICROTUBOS NA MICROIRRIGAÇÃO." IRRIGA 1, no. 2 (2015): 21–29. http://dx.doi.org/10.15809/irriga.2015v1n2p21.

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ANÁLISE DOS MODELOS MATEMÁTICOS UTILIZADOS NO DIMENSIONAMENTO DE EMISSORES DO TIPO MICROTUBOS NA MICROIRRIGAÇÃO DINARA GRASIELA ALVES1; MARINALDO FERREIRA PINTO2; ANA PAULA ALVES BARRETO DAMASCENO3; CONAN AYADE SALVADOR2; TARLEI ARRIEL BOTREL4 E LEONARDO DUARTE BATISTA DA SILVA5 1Pós-doutoranda, bolsista PNPD/CAPES, Departamento de Engenharia, Instituto de Tecnologia, UFRRJ, Seropédica – RJ. Email: dinara_alves@hotmail.com2 Doutor, Professor Adjunto, Departamento de Engenharia, Instituto de Tecnologia, UFRRJ, Seropédica – RJ. Email: mfpufrrj@yahoo.com.br; conanayade@yahoo.com.br3 Doutora em Ci

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