Impact of long-term manure application on soil macronutrient levels in Southern Alberta
Simpson, Lisa G
Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, c2010
The role of manure applications on soil nutrient dynamics in years after manure applications cease has not been extensively studied. An investigation of two long-term manure trials in the Battersea Drain watershed in southern Alberta was undertaken in 2004 to determine changes in soil nutrient status three years after the initial study was completed. The investigation of the nutrient status of an intensive livestock operation was another component of the study. There was a significant decrease in levels of soil nitrogen, phosphorus and potassium in the plots that received manure application rates over 60 Mg ha-1. The nutrient status of the farm showed a net export of nitrogen and an accumulation of phosphorus and potassium in the soil. Recommendations for alternate methods for handling manure were presented.
x, 120 leaves : ill (some col.), col. maps ; 29 cm
Farm manure -- Environmental aspects -- Alberta, Southern , Farm manure -- Research -- Alberta, Southern , Manure handling -- Environmental aspects -- Alberta, Southern , Manure handling -- Research -- Alberta, Southern , Soils -- Quality -- Alberta, Southern , Soils -- Nitrogen content -- Alberta, Southern , Soils -- Potassium content -- Alberta, Southern , Soils -- Phosphorus content -- Alberta, Southern , Dissertations, Academic