Winter Nutrient Losses to Groundwater Associated with Various Tillage Manure Systems

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by Paul D. Robillard, Penn State Univ, University Park, United States,
Michael F. Walter, Penn State Univ, University Park, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource—In Search of Solutions

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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