Tracing nitrate transport and environmental impact from intensive swine farming using delta nitrogen-15
January 1, 1997
Natural-abundance delta15N showed that nitrate generated from commercial land application of swine (Sus scrofa domesticus) waste within a North Carolina Coastal Plain catchment was being discharged...
Environment - Air
Hydrogen sulphide emission from two large pig-finishing buildings with long-term high-frequency measurements
January 1, 1997
Hydrogen sulfide (H2S) is a common toxic air pollutant and is emitted from decomposing manure at animal facilities. However, there have been only a few studies of H2S emissions from animal buildings,...
Effect of long-term liquid pig manure application on atrazine mineralization in a soil cultivated with maize
January 1, 1997By P.C. Bigwaneza
Soil samples were collected in plots from a field experiment in maize monoculture receiving 0, 60 and 120 m3 ha-1 liquid pig manure (LPM) for 19 years. Soils were sampled from the 0- to 20-cm layer...
Seasonal variation in microbial communities and organic malodor indicator compound concentrations in various types of swine manure storage systems
January 1, 1997
Anaerobic manure storage systems are one of the major contributors to the odour and environmental pollution associated with swine (Sus scrofa) production systems. The microbial ecology of manure...
Nutrient input and removal trends for agricultural soils in nine geographic regions in Arkansas
January 1, 1997By Nathan A. Slaton
Knowledge of the balance between nutrient inputs and removals is required for identifying regions that possess an excess or deficit of nutrients. This assessment describes the balance between the...
Ammonia and nitrous oxide emissions from sprinkler irrigation applications of swine effluent
January 1, 1997
In the USA, swine operations produce more than 14 Tg of manure each year. About 30% of this manure is stored in anaerobic lagoons before effluent applications to land. Although land application is...
Performance of swine waste lagoons for removing Salmonella and enteric microbial indicators
January 1, 1997By Vincent R. Hill
Swine lagoon liquid may contain numerous pathogens at concentrations that are a risk to human health through on-farm contact or through off-farm exposure, such as may occur if the pathogens are...
Estimating ammonia loss from sprinkler-applied swine effluent
January 1, 1997
Volatilization of NH3 from sprinkler-applied effluent is a major N loss pathway in the Great Plains region, but there is disagreement as to how much of the total NH4-N applied in effluent is lost....
Soil carbon and nitrogen dynamics following application of pig slurry for the 19th consective year. II. Nitrous oxide fluxes and mineral nitrogen
January 1, 1997
Agricultural soils often receive annual applications of manure for long periods. Our objective was to quantify the effects of 19 consecutive years of pig (Sus scrofa) slurry (PS) application to a...
Laboratory study of surface aeration of anaerobic lagoons for odor control of swine manure
January 1, 1997
Surface aeration of pig manure stored in anaerobic lagoons for odour control was experimentally studied in the laboratory. The effects of different aeration rates and depths on reduction in emission...
