Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Project: IRRIGATION AND PRECISION MANAGEMENT STRATEGIES TO SUSTAIN AGRICULTURE WITH LIMITED WATER SUPPLIES

Location: Water Management Research

Title: Water Production Functions For High Plains Crops

Authors
item Trout, Thomas
item Buchleiter, Gerald
item Bausch, Walter

Submitted to: Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: January 25, 2009
Publication Date: May 17, 2009
Citation: Trout, T.J., G. Buchleiter and W. Bausch. 2009. Water Production Functions For High Plains Crops. In: Great Rivers, S. Starrett, ed. Proceedings of the World Environmental & Water Resources Congress 2009. Kansas City, Missiouri. pp. 3959-3967.

Technical Abstract: Declining water supplies is the critical resource issue for irrigated agriculture in the High Plains and much of the western U.S. Farmers need to maximize production per unit water consumed to remain economically viable and sustain irrigated agriculture. The Agricultural Research Service (ARS) Water Management Research Unit is developing water production functions for High Plains crops that can help farmers make decisions for allocating limited water supplies among crops. The Unit has developed an irrigated research farm to measure total water balance for a 4 crop rotation (wheat, corn, sunflower, dry beans). The goal is to develop water production functions based on consumptive use, relate yields to soil water deficits and plant stress indicators, and improve existing plant growth models to more accurately reflect water stress effects. Results for the first year corn crop show both grain and total biomass yields nearly proportional to water consumptive use with water use efficiencies of 2.4 and 3.9 kg/m3, respectively.

Last Modified: 8/22/2014
Footer Content Back to Top of Page