A computer model for predicting ammonia release rates
January 1, 1994
A computer model for predicting ammonia release rates from manure pits in pig buildings is presented. The model couples ammonia diffusion and generation in the manure with ammonia release from the...
Gaseous nitrogen emissions from anaerobic swine lagoons: ammonia, nitrous oxide, and dinitrogen gas
January 1, 1994
Seventy-five percent of swine (Sus scrofa) production systems in North America use anaerobic or liquid-slurry systems for waste holding or disposal. Accurate emissions data and emission factors are...
Removal of ammonia and odors from contaminated air in animal houses by a ferroelectric plasma reactor
January 1, 1994
The objective of this work was to develop an electric air-cleaning system for animal houses. An a.c.-powered ferroelectric packed-bed plasma reactor was tested to destroy ammonia and odours in the...
Swine lagoon effluent as a source of nitrogen and phosphorus for summer forage grasses
January 1, 1994
Efficient crop utilization of N and P derived from anaerobic swine (Sus scrofa domesticus) lagoon effluent is critical to minimizing offsite nutrient movement. The objective of this study was to...
Denitrification in a Coastal Plain Riparian Zone Contiguous to a Heavily Loaded Swine Wastewater Spray Field
January 1, 1994
Riparian zones are recognized worldwide as important landscape features that are able to buffer streams from pollutants, particularly nitrogen. The objectives of this experiment were to 1) assess the...
Effects of liquid swine manure applications on NO3-N leaching losses to subsurface drainage water from loamy soils in Iowa
January 1, 1993By A. Bakhsh
Long-term applications of organic or inorganic sources of N to croplands can increase the leaching potential of nitrate-nitrogen (NO3-N) for soils underlain by subsurface drainage "tile"...
Nitrogen assimilation by riparian buffer systems receiving swine lagoon wastewater
January 1, 1993By Robert K. Hubbard
A three-year study was conducted to determine the feasibility of using riparian buffer systems to assimilate nitrogen (N) from swine lagoon effluent. Replicated 30X4 m plots were established at the...
Simulating the effect of swine manure application on NO3-N transport to subsurface drainage water
January 1, 1993By Allah Bakhsh
The root zone water quality model (RZWQM V.3.25) was calibrated and evaluated using four years (1993-96) of field data to simulate the effect of swine manure application on NO3-N losses with...
Nutrient removal by grass components of vegetated buffer systems receiving swine lagoon effluent
January 1, 1993
Information is needed on nutrient removal mechanisms in vegetated buffer systems to assist in the design of these tong-term nutrient removal systems. We determined nutrient removal by grass portions...
Application of nitrogen from swine lagoon effluent to bermudagrass pastures: seasonal changes in forage nitrogenous constituents and effects of energy and escape protein supplementation on beef cattle performance
January 1, 1993By R. W. Harvey
A 2-yr study was conducted to evaluate 1) the effects of nitrogen level from swine lagoon effluent on forage composition and animal performance and 2) the effects of supplemental escape protein (EP)...
