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United States Department of Agriculture (USDA) 2019

IMPROVING CROPPING SYSTEM RESILIENCE THROUGH DIVERSIFICATION AND SOIL CONSERVATION

Cropping Soil Conservation

United States Department of Agriculture (USDA) National Institute of Food and Agriculture

Titre : IMPROVING CROPPING SYSTEM RESILIENCE THROUGH DIVERSIFICATION AND SOIL CONSERVATION

Identification : 1019781

Pays : Etats Unis

Durée : START : 01 JUL 2019 TERM : 30 JUN 2024

Résumé
The overarching goal of this project is to improve the resilience of theagricultural systems with a primary focus on the Central High Plains region. The current management systems in the region are vulnerable to soil degradation, the proliferation of herbicide resistant weeds, declining groundwater resources, andmore frequent droughts due to climate change. By identifying the potential benefits and trade-offs of different crops and crop rotations, this research will provide additional management options for growers, thereby increasing the adoption of more resilient cropping systems. Expanding the number of crops and cover crops integrated within dryland and irrigated crop rotations using an adaptive management approach has the potential to substantially improve multiple outcomes. In addition, understanding the mechanisms behind the effects of crop species or varieties on carbon, nitrogen, and water dynamics, has the potential to inform breeding programs, policy incentives, and decision support tools. Specifically, this research will contribute to products and outcomes for : 1) increasing soil carbon ; 2) reducing wind erosion ; 3) improving cumulative water use efficiency ; 4) reducing the risk of developing herbicide resistant weeds ; 5) reducing nitrogenfertilizer requirements ; and 6) improve cropping system net profitability.

Objectifs
Develop cropping systems adapted to the Semi-Arid Western Plains that are productive, resilient in the face of climatic variability, and environmentally sustainable through:Quantifying the influence of different cropping systems on multiple ecosystem functions.Apply cropping systems models and spatial analyses to evaluate cropping system resilience in the face of future climate and groundwater availability scenarios.Collaborate on systems-based research that links promising crops and cropping system practices to food supply chains to address barriers to adoptionImprove our understanding of plant-soil-microbe interactions that influence carbon and nitrogen cycling and water use in cropping systems by:Quantifying crop and crop rotation effects on soil carbon and nitrogen cycling and water use from rhizosphere to field scales.Applying long-term field data to improve carbon and nitrogen cycling and water use modules within existing cropping system models and decision support tools

Performing Institution : COLORADO STATE UNIVERSITY
Investigator : Schipanski, ME,

Présentation : USDA (NIFA)

Page publiée le 24 novembre 2021