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United States Department of Agriculture (USDA) 2012

ENHANCED SYSTEM MODELS, MANAGEMENT AND CULTIVAR ADAPTATIONS TO LIMITED WATER AND CLIMATE CHANGE, AND TOOLS FOR PRECISION MANAGEMENT

Water Climate Change

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : ENHANCED SYSTEM MODELS, MANAGEMENT AND CULTIVAR ADAPTATIONS TO LIMITED WATER AND CLIMATE CHANGE, AND TOOLS FOR PRECISION MANAGEMENT

Identification : 3012-61660-007-02

Pays : Etats Unis

Durée : Sep 15, 2012 à Sep 14, 2017

Partenaire : USDA-ARS and Colorado State University

Objectif
The longer term goals of this cooperative research project between USDA-ARS and Colorado State University are to : 1) further improve understanding and quantification of the response of crops to water stress at different growth stages, temperature-CO2-water-N interactions, and evapotranspiration (ET) for enhancement of crop and rangeland system models ; 2) use the enhanced system models to develop management and cultivar adaptations to limited water and warming climate to sustain food production and maintain environmental quality in the Great Plains ; 3) develop simpler decision tools to guide management at the farm and ranch levels ; such as a water optimizer for selecting the crops, acreage, and level of irrigation, an irrigation scheduler, and a drought calculator for rangelands ; and 4) apply the enhanced system models in precision management of water and nutrients.
Specific objectives (Statement of Work) for the funds being provided in this amendment are to : 1) further improve quantification of crop water stress responses in corn, wheat, and beans, including analysis of energy balance data for corn at different levels of ET-based irrigation ; 2) explore optimum intervals of water applications to meet crop water demand at 100%, 75%, and 50% levels of potential crop ET for corn ; and 3) advise and assist in simulating water-temperature-CO2-N interactions and management adaptations to climate change for rangelands in the Central Great Plains.

Présentation : USDA

Page publiée le 3 septembre 2015, mise à jour le 15 novembre 2017