Soil chemical changes following manure application on irrigated alfalfa and rainfed timothy in southern Alberta
January 1, 1996
In areas within Alberta where suitable cultivated land is not available, or for convenience, the use of forage land is an alternative for manure application. However, there is limited research on the...
Odor measurements from manure storages on Minnesota pig farms
January 1, 1996
Data collected from 30 pig manure stores in Minnesota, USA, shows a wide range of both odour dilution thresholds and hydrogen sulfide concentrations during moderate autumn weather conditions. A...
Groundwater nitrate depletion in a swine lagoon effluent-irrigated pasture and adjacent riparian zone
January 1, 1996By A. J. Sloan
Irrigation of anaerobic swine lagoon effluent onto cattle-grazed grass pastures represents a common waste treatment method in the Coastal Plain of North Carolina. However, such treatment strategies...
Air quality and emission measurement methodology at swine finishing buildings
January 1, 1996
Reliable measurements of air quality and emissions at large livestock buildings with inherently large spatial and temporal variations of pollutant concentrations are relatively difficult and...
Agronomic and environmental soil phosphorus testing in soils receiving liquid swine manure
January 1, 1996
There is uncertainty concerning evaluation of bioavailable P in manured soils. This study assessed P availability in manured Iowa soils by measuring soil P with agronomic and environmental P tests...
Characteristics of phototrophic and non-phototrophic lagoons for swine manure
January 1, 1996
Odors are a major result of inadequately sized and mismanaged anaerobic lagoons. However, purple or pink colored lagoons, indicating the presence of phototrophic purple bacteria, are less likely to...
Manure-Phosphorus in Soil: Detection and Mobility of Phytate
January 1, 1996
Annual swine effluent application in western Oklahoma for 11 consecutive years did not lead to significant accumulation of soil phosphorus. Similar trend was shown in a century-old field experiment...
Reduction of odor and volatile substances in pig slurries by using pit additives
January 1, 1996
The effects of five commercial pit additive products on the release of odour nuisance and volatile compounds from swine manure were examined. The changes of pH, volatile fatty acids, total solids,...
An Integrated Index of Electrical Energy Use in Canadian Agriculture with Implications for Greenhouse Gas Emissions
January 1, 1996By J.A. Dyer
Electricity is fundamental to many farm chores. In this paper quantitative indices of electrical energy use were developed which reflect direct on-farm decisions for measures that farmers can adopt...
Evaluating the use of straw and other floating materials to control odor and gases from pig manure storage units
January 1, 1996
The use of various floating covers on commercial manure storage units to control odour and H2S emissions was evaluated and the management requirements to maintain the covers were identified. When...
