Effect of swine lagoon water application rate and alfalfa harvest frequency on dry matter production and N harvest
January 1, 1992
Swine (Sus scrofa domesticus) lagoon water can supply valuable fertilizer nutrients for field crops. Reduced land availability and increased swine operation size can potentially create situations...
Effects of swine lagoon effluent application on chemical properties of a loamy sand
January 1, 1992By F. Liu
In order to determine the effects of lagoon effluent application on soil chemical properties, swine lagoon effluent was applied to land with a 10% slope by an overland flow irrigation system on...
Performance of four constructed wetlands treating anaerobic swine lagoon effluents
January 1, 1992
Effluents from both cells of a two-cell anaerobic lagoon system beating flushed swine waste were loaded into two types of constructed wetlands [submerged flow (SF) and free water surface (FWS)]. The...
Nitrogen distribution in soils of constructed wetlands treating lagoon wastewater
January 1, 1992By Ariel A. Szögi
Constructed wetlands have the potential to be used for treatment of N-rich livestock wastewater. Our objectives were to evaluate both the time effect and increasing N loading rates on soil N...
Swine manure and N-management systems: impact on groundwater quality
January 1, 1992By R. S. Kanwar
Field studies were initiated in the fall of 1992, to evaluate the effects of nine alternative nitrogen (N), tillage, and crop management strategies on N loss to the shallow groundwater. The tillage...
Evaluation of overland flow treatment for swine lagoon effluent
January 1, 1992By Gary L. Hawkins
Overland flow, on slopes of 5 and 11%, was used as a means of treating wastewater effluent from the second cell of a swine waste anaerobic lagoon system. Wastewater samples from both surface runoff...
Surface water quality impacts of tillage practices under liquid swine manure application
January 1, 1992By R. P. Rudra
Field studies were conducted to investigate the effects of tillage practices on the saturated hydraulic conductivity, and quantity and quality of surface runoff water resulting from the application...
Effectiveness of Vegetative Filter Strips in Retaining Surface-Applied Swine Manure Constituents
January 1, 1992By Indrajeet Chaubey
Simulated rainfall was used to evaluate the effectiveness of vegetative filter strips (VFS) of varying lengths (0, 3, 6, 9, 15, and 21 m) in reducing sediment and nutrient losses from plots treated...
Aeration Experiments for Swine Waste Composting
January 1, 1992
A study was undertaken to investigate aeration in the composting of swine manure. Three sets of aeration experiments were conducted to determine the optimum aeration rate. Both continuous and...
Treatment of liquid swine manure in the sequencing batch reactor under aerobic and anoxic conditions
January 1, 1991By L. Fernandes
Laboratory studies were conducted on a sequencing batch reactor (SBR) for the treatment of screened liquid pig manure. The SBR was operated on the basis of a 24 h cycle at 6 and 90 days hydraulic...
