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- Gilley, J. E.; Boone, G. D.; Marx, D. B.
- ARS USDA Submissions 2014 v.57 no.3 pp. 749
- ammonium nitrogen; beef cattle; cattle manure; feedlots; nutrient content; particle size; phosphorus; runoff; water quality analysis
- ... Beef cattle feedlots contain unconsolidated material that accumulates on the feedlot surface during a feeding cycle. This study was conducted to measure the effects of varying diameters of unconsolidated surface material and varying flow rates on nutrient concentrations in runoff. Unconsolidated surface material with an average diameter of 4.76, 9.53, 19.1, or 47.5 mm and a composite sample with a ...