In-situ crop water use from shallow ground water to reduce drainage and save irrigation water.

Book Title: NA
Year Published: 2005
Month Published: NA
Author: Ayars, J. E. ; Christen, E. W. ; Soppe, R. W. O. ; Hornbuckle, J. W. ; Schoneman, R. A.
Book Group Author: NA

Integrated management of irrigation and drainage systems to maximize crop water use from all sources will be needed as the demand for water increases outside of irrigated agriculture. This will include using subsurface drainage water for supplemental irrigation and modifying irrigation management to induce crop water use from shallow groundwater. Research in the USA and Australia has demonstrated that both annual and perennial crops (both salt-sensitive and salt-tolerant) can effectively use water from shallow groundwater. The research also demonstrated that the crops were capable of using large volumes of water with salinities well in excess of the Maas-Hoffman threshold values for yield reduction. The paper identifies that in order to maximize the potential for crop water use, drainage systems will have to be designed to control the water table depth.

Pages: 25 - 28
Volume: NA
Number: NA
Journal: International salinity forum - managing saline soils andwater: science, technology and social issues. Oral PresentationAbstracts, Riverside Convention Center, Riverside, California, USA,25-28 April 2005
Journal ISO: NA
Organization: NA
Publisher: NA

crop yield, drainage systems, groundwater, irrigatedfarming, irrigation systems, irrigation water, plant water relations,saline water, soil fertility, subsurface drainage, water quality, watertable, water use efficiency, Australia, USA, North America, America,Developed Countries, OECD Countries, Australasia, Oceania, Commonwealthof Nations, annual crops, crop tolerance, environmental tolerance,irrigation management, perennial crops, water demand, waterproductivity, salt water, United States of America, water compositionand quality, Soil Fertility (JJ600), Plant Nutrition (FF061), PlantProduction (FF100), Plant Physiology and Biochemistry (FF060),Environmental Tolerance of Plants (FF900), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management], Water Resources (PP200), Pollution and Degradation(PP600)

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