Winter Nutrient Losses to Groundwater Associated with Various Tillage Manure Systemsby Paul D. Robillard, Penn State Univ, University Park, United States,
Michael F. Walter, Penn State Univ, University Park, United States,
Document Type: Proceeding Paper
Abstract: Excessive nutrient leaching to groundwater in agricultural watersheds has initiated research to develop control systems. Loading of nutrients are enhanced during the non-growing season and when animals manures are land applied. This paper presents tillage-manure control options and their likely effectiveness as an element of current agricultural systems. Using a combination of rate, timing and application method, losses of soluble nutrients to subsurface flow and groundwater can be decreased.
Subject Headings: Nutrients | Control systems | Leaching | Groundwater pollution | Groundwater | Irrigation water | Watersheds
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