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Agricultural Crop Production and Quality Effects when Soils are Amended with Dredged Lake Sediments

by Richard B. Corey, Univ of Wisconsin-Madison, Dep of, Soil Science, Madison, WI, USA,
Arthur E. Peterson, Univ of Wisconsin-Madison, Dep of, Soil Science, Madison, WI, USA,



Document Type: Proceeding Paper

Part of: Dredging and Dredged Material Disposal

Abstract:

Lake renewal achieved by pumping loose sediment from the lake bottom requires a disposal area for that sediment and the associated water. Application of this sediment to agricultural land, where feasible, would have a number of potential advantages. First, the nutrients, particularly nitrogen and phosphorus, in the sediment would be recycled and put to good use; second, the addition of organic matter to the soils should improve soil structure and increase water infiltration in fine- to medium-textured soils and increase water-holding capacity in sandy soils; third, the extra water applied could act as supplemental irrigation in periods of available-water deficits. This project studied the response of crops to applications of sediment from Lily Lake in Kenosha County, Wisconsin. It also compared the chemical properties and crop responses of Lily Lake sediment with those from other Wisconsion lake sediments.

Subject Headings: Sediment | Lakes | Soil water | Crops | Sandy soils | Dredging | Water supply | Wisconsin | United States

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