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Crop yield response to water
Steduto Pasquale; Hsiao Theodore C.; Fereres Elias; et al. - FAO, 2012 (FAO irrigation and drainage paper-No. 66)Food production and water use are inextricably linked. Water has always been the main factor limiting crop production in much of the world where rainfall is insufficient to meet crop demand. With the ever-increasing competition for finite water resources worldwide and the steadily rising demand for agricultural commodities, the call to improve the efficiency and productivity of water use for crop production, to ensure future food security and address the uncertainties associated with climate change, has never been more urgent.
Performance analysis of on-demand pressurized irrigation systems
Lamaddalena Nicola; Sagardoy J.A.; Food and Agriculture Organization (FAO) - FAO, 2000 (FAO irrigation and drainage paper-No. 59)The main objective of this publication is to analyse the performance of pressurized irrigation systems operating on-demand (also under other conditions) and to provide revised criteria for the design of such irrigation networks. For this purpose, new approaches and a computer tool (COPAM) have been developed. Calculation examples have been included to demonstrate the procedures and facilitate the understanding and practical use of formulae. This publication should be of particular interest to irrigation district managers, consultants, irrigation engineers and companies, university professors, ...
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Soil salinity assessment : methods and interpretations of electrical conductivity measurements
This paper presents updated technology for assessing soil salinity based on measurement of electrical conductivity. The technology has been extensively and successfully field tested, and it is sound, reliable, accurate and suited to a wide variety of useful applications. The required equipment is commercially available. The advocated instrumental methodology is practical, cost effective and well developed for all general applications. It is cheaper, faster and more informative than traditional methods of salinity measurement based on soil sampling and laboratory analysis.
Crop evapotranspiration : guidelines for computing crop water requirements
Allen Richard G.; Pereira Luis S.; Raes Dirk; et al. - FAO, 1998 (FAO irrigation and drainage paper-No. 56)This publication presents an updated procedure for calculating reference and crop evapotranspiration from meteorological data and crop coefficients. The procedure, first presented in FAO Irrigation and Drainage Paper No. 24, Crop water requirements, in 1977, allows estimation of the amount of water used by a crop, taking into account the effect of the climate and the crop characteristics. The publication incorporates advances in research and more accurate procedures for determining crop water use as recommended by a panel of high-level experts organized by FAO in May 1990. The first part of th ...
Evapotranspiración del cultivo : guías para la determinación de los requerimientos de agua de los cultivos
Allen Richard G.; Pereira Luis S.; Raes Dirk; et al. - FAO, 1998 (FAO irrigation and drainage paper-No. 56)
Control of water pollution from agriculture
Ongley Edwin D.; Food and Agriculture Organization (FAO) - FAO, 1996 (FAO irrigation and drainage paper-No. 55)
Wastewater treatment and use in agriculture
Gommes René A.; Food and Agriculture Organization (FAO) - FAO, 1992 (FAO irrigation and drainage paper-No. 47)
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Environment management for vector control in rice field
Mather T.H.; Food and Agriculture Organization (FAO) - FAO, 1984 (FAO irrigation and drainage paper-No. 41)
Mechanized sprinkler irrigation
Rolland Lionel; Food and Agriculture Organization (FAO) - FAO, 1982 (FAO irrigation and drainage paper-No. 35)
Les ressources forestières tropicales
Lanly Jean-Paul; Organisation des Nations Unies pour l'Alimentation et l'Agriculture (FAO); Programme des Nations Unies pour l'environnement (PNUE) - FAO, 1982 (FAO irrigation and drainage paper-No. 30)
Self-help wells
Koegel R.G.; Food and Agriculture Organization (FAO) - FAO, 1977 (FAO irrigation and drainage paper-No. 30)
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