Ground Water Impacts from Irrigated Ridge-Tillage

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by James L. Anderson, Univ of Minnesota, St. Paul, United States,
Robert H. Dowdy, Univ of Minnesota, St. Paul, United States,
Geoffrey N. Delin, Univ of Minnesota, St. Paul, United States,

Document Type: Proceeding Paper

Part of: Irrigation and Drainage

Abstract: The Northern Cornbelt Sand Plain Project is a cooperative research effort between the State Agricultural Experiment Stations, USDA/Agricultural Research Service and U.S. Geological Survey in Minnesota, North Dakota, South Dakota and Wisconsin. This project is one of five Management System Evaluation Areas (MSEA). The primary objective is to evaluate the impact of an agricultural management system on ground water in sand plain settings in the four states. As data are obtained relative to the impact on ground water, the system will be modified to reduce those impacts. Specific objectives are to: (1) investigate the impacts of ridge-tillage practices in a corn and soybean cropping system on the rate of transport of atrazine, alachlor, and metribuzin in unsaturated and saturated zones, (2) determine the effects of nitrogen management by soil test, (3) characterize water flow and relate these characteristics to transport and storage of agricultural chemicals, and (4) determine the relation between ground water recharge and agricultural-chemical loading of ground water.

Subject Headings: Irrigation water | Groundwater management | Groundwater flow | Groundwater | Water resources | Agricultural wastes | Water storage | Systems management | Resource management | North America | United States | Wisconsin | North Dakota | Minnesota | South Dakota

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