Download Deficit Irrigation Practices (Water Reports,) by Food and Agriculture Organization of the United Nations PDF

By Food and Agriculture Organization of the United Nations

The good problem for the long run may be the job of accelerating meals construction with much less water, rather in nations with constrained water and land assets. within the context of enhancing water productiveness, there's a starting to be curiosity in "deficit irrigation" - an irrigation perform wherein water offer is lowered less than greatest degrees and delicate rigidity is authorized with minimum results on yield. This e-book provides various reviews, conducted for numerous plants and below diverse ecological stipulations, displaying some of the recommendations and practices of deficit irrigation and the affects of lowered irrigation water provide on crop yield. The synthesis exhibits that deficit irrigation may end up in large water discounts with little impression at the caliber and volume of the harvested yield.

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FAO Irrigation and Drainage Paper No. 49. Rome. FAO. 1992. CROPWAT, a computer program for irrigation planning and management by M. Smith. FAO Irrigation and Drainage Paper No. 26. Rome. FAO. 1979. Yield response to water by J. Doorenbos & A. Kassam. FAO Irrigation and Drainage Paper No. 33. Rome. FAO. 1977. Guidelines for predicting crop water requirements by J. O. Pruitt. FAO Irrigation and Drainage Paper No. 24. Rome. , Hera, C. R. ). 1999. Crop yield response to deficit irrigation. Dordrecht, The Netherlands, Kluwer Academic Publishers.

76 m), each of which had three separate row patterns: (1) no row skips; (2) every other row skipped; and (3) every third row skipped. Local cotton growers term these “Every Row” “1-and-1” and “2-and-1”, respectively. These six configurations were accompanied by a seventh, ultra-narrow row (UNR), treatment. 38 m during the other two years. 7 mm/d. The experiment used water resource amounts instead of percentages of evapotranspiration (ET) because employing percent of ET to initiate a treatment leads to a curtailing of early-season pumping as ET levels are low.

Ultra-narrow-row treatments significantly exceeded the treatments with traditional row widths at all four water levels. The highest yield of lint was 1 833 kg/ha. Applying large portions of the moisture requirement as pre-planting irrigation enabled yields of 600 – 900 kg/ha of lint for the full pattern width treatments on the smallest water treatment, which applied 36 mm of inseason irrigation. The skip-row patterns did not yield as much as the full-row patterns. MATERIALS AND METHODS Experimental design The trial lasted three years starting in 1997 in St.

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