Manure Application Timing and Tillage Influence on Nutrient Loss from Snowmelt Runoff

Author:

Bhandari Ammar B.,Gelderman Ronald,German David,Todey Dennis

Abstract

Winter manure application contributes substantial nutrient loss during snowmelt and influences water quality. The goal of this study is to develop best management practices (BMPs) for winter manure management. We compared nutrient concentrations in snowmelt runoff from three dates of feedlot solid beef manure application (November, January, and March) at 18 tons ha−1 on untilled and fall-tilled plots. The manure was applied at a single rate. Sixteen 4 m2 steel frames were installed in the fall to define individual plots. Treatments were randomly assigned so that each tillage area had two control plots, two that received manure during November, two in January, and two in March. Snowmelt runoff from each individual plot was collected in March and analyzed for runoff volume (RO), ammonium-nitrogen (NH4-N), nitrate-nitrogen (NO3-N), total suspended solids (TSS), total Kjeldahl nitrogen (TKN), total phosphorus (TP), and total dissolved phosphorus (TDP). Snowmelt runoff concentrations and loads of NH4-N, TKN, TP, and TDP were significantly higher in runoff from manure application treatments compared to control. The concentration of NH4-N and loads of NH4-N and TDP were significantly (p = 0.05) greater (42%, 51%, and 47%, respectively) from untilled compared to fall-tilled plots. The November application significantly increased RO, NH4-N, and TDP concentrations and loads in the snowmelt runoff compared to January and March applications. Results showed that nutrient losses in snowmelt runoff were reduced from manure applications on snow compared to non-snow applications. The fall tillage before winter manure application decreased nutrient losses compared to untilled fields.

Publisher

MDPI AG

Subject

Earth-Surface Processes,Soil Science

Reference60 articles.

1. EPA guidelines concerning agricultural manure management practices;Shuyler,1989

2. Connecting phosphorus loss from agricultural landscapes to surface water quality

3. Nutrient losses from manure and fertilizer applications as impacted by time to first runoff event

4. Manure management and nutrient loss under winter conditions: A literature review;Srinivasan;J. Soil Water Conserv.,2006

5. Watershed-scale response to agricultural diffuse pollution control programs in Vermont, USA

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