Results 201 to 210 of about 636 (254)
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Trickle Irrigation: Prevention of Clogging
Transactions of the ASAE, 1979ABSTRACT TRICKLE irrigation experiments using Colorado River irrigation water on citrus trees in south-western Arizona were conducted to evaluate clogging of emitters and to investigate methods for controlling clogging. Clogging is related to the water quality in terms of the suspended sediment load, chemical compo-sition, and biological activity ...
null R. G. Gilbert +2 more
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Trickle Irrigation Uniformity and Efficiency
Journal of the Irrigation and Drainage Division, 1978Expressions are developed and presented for the pressure head available at any point within a trickle irrigation subunit. Histograms are drawn showing the distributions of pressure within typical subunits. Distributions of emitter flow rates within typical subunits are derived from considerations of the effects of pressure differentials and ...
Ken Solomon, Jack Keller
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Soil Science Society of America Journal, 2010
We previously developed a new, coupled‐source–sink modeling approach for evaluating an upper bound to the relative water uptake rate (water use efficiency) for two‐ and three‐dimensional geometries. Because the formulated water‐flow problem is linear, the relative water uptake rate for any given collection of point (or line) sources and point (or line)
Gregory Communar, Shmulik P. Friedman
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We previously developed a new, coupled‐source–sink modeling approach for evaluating an upper bound to the relative water uptake rate (water use efficiency) for two‐ and three‐dimensional geometries. Because the formulated water‐flow problem is linear, the relative water uptake rate for any given collection of point (or line) sources and point (or line)
Gregory Communar, Shmulik P. Friedman
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Trickle irrigation water quality and preventive maintenance
Agricultural Water Management, 1979The most serious problem in trickle irrigation is clogging of emitters or applicators. Recommendations and guidelines are presented for preventive maintenance which include water filtration, chemical treatment, pipeline flushing and field inspection. A suitable type, size and capacity of a filtration unit is required.
BUCKS, DA, NAKAYAMA, FS, GILBERT, RG
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Trickle irrigation of sunflower with municipal wastewater
Agricultural Water Management, 1991Abstract A field experiment was carried out for three years on a Calcaric Lithosol to study the influence of treated municipal wastewater in comparison with freshwater, supplemented with four N or P levels, on soil fertility and on growth and yield of trickle-irrigated sunflower ( Helianthus annuus L.).
I. Papadopoulos, Y. Stylianou
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Yield response of bananas to trickle irrigation
Australian Journal of Experimental Agriculture, 1981Supplementary trickle irrigation applied twice a week by single microtube at replacement rates of 0 (control), 20, 40, 60, 80, 100 and 120% of Class A pan evaporation (El from 1970 to 1976 increased bunch weight significantly (P= 0.02) above 40% E. Treatment 60% E gave a bunch weight of 27.6 kg compared with 25.7 for the control. The control, 20 and 40%
T Trochoulias, RD Murison
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Stormwater and Reclaimed Effluent in Trickle Irrigation
Journal of the Irrigation and Drainage Division, 1980Trickle irrigation experiments with two qualities of mixtures of reservoir effluents and stormwater, were conducted in a 1-yr research project at two kibbutzim (communal farms) in the Jezreel Israel. Various Israel methods and degrees of filtration were examined and then related to the effluent quality, as well as the degree of emitter clogging along ...
Gideon Oron +2 more
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Nitrogen fertigation of trickle-irrigated potato
Fertilizer Research, 1988This three-year field study, on Pellic Vertisol, was designed to investigate the response of trickle-irrigated potato (Solanum tuberosum L.) to four nitrogen levels continually applied with the irrigation stream. Waters containing 70, 130, 190, and 250 mg Nl−1 and uniformly supplied with 50 and 120 mgl−1 of P and K, respectively, were applied when the ...
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Trends in trickle irrigation systems development
International Journal of Water Resources Development, 1991As water availability becomes an increasing constraint on food production, more attention must be given to exploiting crop characteristics such as tolerance of water scarcity or saline soils, and the development of efficient water application methods. Water application methods vary, among other things, in their efficiency of water use and related yield,
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Global Uniformity of Trickle Irrigation Systems
Transactions of the ASAE, 1985ABSTRACT Asimulation model for the study of trickle irrigation uniformity was developed which treats the various equipment, system and other factors known to influence emitter flow rate variation. The model provides a tool for the assessment of global trickle uniformity in the sense that the assessment need not be spatially or otherwise restricted.
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