Disposal of Cattle Feedlot Runoff on Agricultural Land.

摘要

Cattle feedlot runoff was applied to sod planted corn for three years at rates up to 30inches per year without pollution of soil,crop,surface water or groundwater. Data were collected on many areas of crop production to check the effect of effluent irrigation compared to water irrigation on sod planted corn. All tests to date show no discernible difference in forage or grain nutrient content. The grain yield was suppressed 20% or more by the sprinkler application of effluent every two weeks,compared to water irrigated plots,during the growing season. Water and effluent were applied to sod planted corn in ten appliations with maximum applications of 30inches a year for three years. The application was measured and analyzed chemically for nutrients. Forage and grain yields were determined and each was analyzed for nutrient composition. Percolate samples were collected from the 7-foot depth and analyzed chemically.