Filters: Tags: Manure (X)92 results (12ms)
Environmental fate of roxarsone in poultry litter. Part II. Mobility of arsenic in soils amended with poultry litter
Poultry litter often contains arsenic as a result of organo-arsenical feed additives. When the poultry litter is applied to agricultural fields, the arsenic is released to the environment and may result in increased arsenic in surface and groundwater and increased uptake by plants. The release of arsenic from poultry litter, litter-amended soils, and soils without litter amendment was examined by extraction with water and strong acids (HCI and HNO3). The extracts were analyzed for As, C, P, Cu, Zn, and Fe. Copper, zinc, and iron are also poultry feed additives. Soils with a known history of litter application and controlled application rate of arsenic-containing poultry litter were obtained from the University of...
Reservoir Competence of Carcinops pumilio for Salmonella enteritidis (Eubacteriales: Enterobacteriaceae)
Fertilization of earth ponds. I: Effects on physico-chemical characteristics and eutrophication of pond water and soil
National 1-kilometer rasters of selected Census of Agriculture statistics allocated to land use for the time period 1950 to 2012
This dataset consists of a series of rasters covering the conterminous United States. Each raster is a one kilometer (km) grid for 18 selected Census of Agriculture statistics mapped to land use pixels for the time period 1950 to 2012. A supplemental set of 9 statistics mapped at the entire county level are also provided as 1-km rasters. The rasters are posted as ArcGIS grids. The statistics represent values for crops, livestock, irrigation, fertilizer, and manure usage. Most statistics are mapped for all 14 Census of Agriculture reporting years in that time frame: 1950, 1954, 1959, 1964, 1969, 1974, 1978, 1982, 1987, 1992, 1997, 2002, 2007, and 2012.
Trend Analysis of Nutrient Concentrations and Loads in Surface Water in an Intensively Fertilized Watershed
Electrical conductivity monitoring of soil condition and available N with animal manure and a cover crop
Ozonation of swine manure wastes to control odors and reduce the concentrations of pathogens and toxic fermentation metabolites