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Bioresource and Agricultural Engineering Commons™
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Full-Text Articles in Bioresource and Agricultural Engineering
Narrow Grass Hedge Control Of Nutrient Loads Following Variable Manure Applications, John E. Gilley, Lisa M. Durso, Roger Eigenberg, David B. Marx, Brian L. Woodbury
Narrow Grass Hedge Control Of Nutrient Loads Following Variable Manure Applications, John E. Gilley, Lisa M. Durso, Roger Eigenberg, David B. Marx, Brian L. Woodbury
Department of Biological Systems Engineering: Papers and Publications
The effectiveness of a narrow grass hedge in reducing runoff nutrient loads following manure application was examined in this study. Beef cattle manure was applied to 0.75 m wide by 4.0 m long plots established on an Aksarben silty clay loam located in southeast Nebraska. Manure was added at rates required to meet none or the 1, 2, or 4 year nitrogen requirements for corn. Runoff water quality was measured during three 30 min simulated rainfall events. Manure application rate significantly affected dissolved phosphorus (DP) and total phosphorus (TP) loads in runoff on the plots without a grass hedge. However, …
Runoff, Erosion, And Size Distribution Of Sediment From Beef Cattle Feedlots, John E. Gilley, Jason R. Vogel, Roger Eigenberg, David B. Marx, Brian L. Woodbury
Runoff, Erosion, And Size Distribution Of Sediment From Beef Cattle Feedlots, John E. Gilley, Jason R. Vogel, Roger Eigenberg, David B. Marx, Brian L. Woodbury
Department of Biological Systems Engineering: Papers and Publications
The size distribution of sediment in runoff from feedlot surfaces influences erosion rates and settling velocity. The objectives of this study were to: (1) measure runoff, erosion, and size distribution of sediment in runoff from feedlot surfaces containing varying amounts of unconsolidated surface material (USM), and (2) determine the effects of varying runoff rate on erosion and sediment size distribution. Simulated rainfall was applied to 0.75 m wide by 2 m long plots located within feedlot pens. Sieve and pipette analyses were used to measure the diameters of the eroded materials. No significant differences in runoff and erosion were found …