The Livestock Nutrient Management Research Program at WSU Puyallup Research and Extension Center is focused on the area of whole-farm nutrient management, which involves the integration of animal nutrition, agronomy-crops-soils, engineering, and economics. An effective approach to whole farm nutrient management requires the integration of management practices across the farmstead. The overarching goal of the program is to provide real time solutions in the area of Whole Farm Nutrient Management, by providing relevant and profitable strategies in effectively managing nutrients.
The Livestock Nutrient Management Research and Outreach Program is a collaborative effort amongst WSU faculty in the department of Animal Sciences, Bio-systems Engineering, Crops and Soils, Atmospheric Sciences, and the School of Economic Sciences. In addition, the Nutrient Management Program has developed key relationships with state and federal agencies associated with regulation of the environment and include: US EPA, WA State Department of Agriculture, WA Department of Ecology, WA Conservation Commission, County based Conservation Districts, Washington State Dairy Federation, and the Washington State Cattleman’s Association.
- Mobile Nutrient Recovery System (struvite)
- Extraction of phosphorus from liquid dairy manure in the form of struvite
- ADOPT (Anaerobic Digestion Optimizer) Anaerobic Digester Economic Modeling Tool
- Fate and transport of bacteria in manure managed in an anaerobic digester
- Transformation and utilization of anaerobically digested manure for crop production
- Effect of potassium nutrition on dairy milk fat
- Precision Nitrogen Feeding – Reduction in nitrogen import to dairy farms in feeds by precision ration balancing
- Extraction of phosphorus from liquid dairy manure for off farm use as a fertilizer
- Relationship of manure application to ground water nitrate content