Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Comparison of Biofuel Systems Site

Title

Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Comparison of Biofuel Systems Site

Number

AE 3615

Files

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Publication Date:

6-2017

Status

Current

Description

The Comparison of Biofuel Systems (COBS) site has 24 0.4-acre research plots equipped with a drainage water monitoring system installed in 2008 (Figures 1 and 2). Plots have <1 percent slope with Nicollet and Webster soils. Tile lines are installed at a depth of 3.5 feet spaced 45 feet apart. Management practices are evaluated for their impact on nitrate-N and dissolved phosphorus (P) loss and crop yield. To quantify the impact of these practices, researchers are monitoring subsurface drainage volume and collecting flow-proportional water samples for nitrate-N and dissolved P analysis (Figure 3). The 30-year average annual rainfall at COBS is 35.8 inches. The average tile drainage flow from 2010-2016 is 9.0 inches.

Language

en

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Drainage Water Quality Impacts of Various In-field Nutrient Management Practices: Comparison of Biofuel Systems Site

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