Nitrogen Recovery and Partitioning with Different Rates and Methods of Sidedressed Manure
January 1, 1999
Animal manure is an important source of N for crops in areas with intensive livestock production. Variable manure N availability can incite over-application of manure or supplemental fertilizer...
N-source effects on temporal distribution of NO3-N leaching losses to subsurface drainage water
January 1, 1999By R. S. Kanwar
Understanding the temporal distribution of NO3-N leaching losses from subsurface drained ?tile? fields as a function of climate and management practices can help develop strategies for its...
Phosphorus runoff from incorporated and surface-applied liquid swine manure and phosphorus fertilizer
January 1, 1999
Excessive fertilization with organic and/or inorganic P amendments to cropland increases the potential risk of P loss to surface waters. The objective of this study was to evaluate the effects of...
Possible sources of nitrate in ground water at swine licensed-managed feeding operations in Oklahoma, 2001
January 1, 1999
Samples collected and analyzed by the Oklahoma Department of Agriculture, Food, and Forestry from 1999 to 2001 determined that nitrate exceeded the U.S. Environmental Protection Agency maximum...
Dust and odor emissions from tunnel ventilated swine buildings in North Carolina
January 1, 1999
Tunnel ventilation of swine buildings conveys odorous dust and gases out of the production buildings. Measurement of dust and odour levels and other environmental parameters is necessary for...
Effects of swine manure application on bacterial quality of leachate from intact soil columns
January 1, 1999By Elizabeth A. Warnemuende
Excessive application of swine manure on agricultural lands is likely to increase water pollution. Potential impacts of swine manure management on bacterial contamination in subsurface drainage are...
Alternatives to minimize the environmental impact of large swine production units
January 1, 1999
Large swine production facilities have become controversial additions to the agricultural landscape as their numbers and sizes have increased. In addition to being larger enterprises, these units...
Optimization of a sprinkling system using undiluted canola oil for dust control in pig buildings
January 1, 1999
An oil sprinkling system has been designed to control dust levels in pig buildings using undiluted crude canola oil and was previously tested over a two-week period. The system was tested again over...
Estimating the availability of nutrients from processed swine lagoon solids through incubation studies
January 1, 1999By Miressa Duffera
Potential environmental hazards from the excess accumulation of swine (Sus scrofa domesticus) manure in eastern North Carolina and new state guidelines on treatment alternatives have necessitated the...
Phosphorus Fractionation in Manure from Swine Fed Traditional and Low-Phytate Corn Diets
January 1, 1999By Brian Wienhold
Traditional corn (Zea mays L.) (TC), the primary grain used in swine (Sus scrofa) diets, stores a majority of its P as phytate, which is largely unavailable for digestion by nonruminant animals....
