2007 Projects
Project: 216-06
Title: Changes in the Solution Chemistry of Dairy Manure under Storage.
Principle Investigator: Phillip Barak, Dept. of Soil Science, UW-Madison.
Objective: Identify chemical conditions in stored manure that are: 1) conducive to ammonia losses by volatilization, or 2) conducive to controlled struvite precipitation on molecular templates without chemical additives.
Funding Level: $10,600
Duration: 1 year
Project: 217-06
Title: Manure Solution and Phosphorus Concentration using Biopolymers.
Principle Investigator: K.G. Karthikeyan, Biological Systems Engineering, UW-Madison.
Objective: Compare nine polymeric flocculants for concentration of manure solids/P and to formulate optimum dosages of flocculants and pH conditions using bench-scale laboratory experiments. Evaluate different fibers to determine the length, effectiveness, and quantity required to absorb the liquid fraction of dairy manure. Apply the most effective mixture of biopolymers and fibers to solidify dairy manure and to assess its physical stability after solidification. Determine the exchangeability and water-extractability of P in solidified manure.
Funding Level: $16,500, $16,200, $16,900
Duration: 3 years
Project: 218-06
Title: An Improved Understanding of Soil Potassium Dynamics and Fertilizer Requirement for Corn and Soybean.
Principle Investigator: Carrie A.M. Laboski, Dept. of Soil Science, UW-Madison.
Objective: Understand the impact of soil drying on STK for soils with different parent materials. Quantify the seasonal variability in STK for different soils. Assess the interactive effects of soil test extract type with soil drying on STK. Reaffirm critical STK levels for corn and soybean production. Validate K crop removal values that are currently used.
Funding Level: $18,500, $19,000
Duration: 2 years
Project: 219-06
Title: Is Potassium Chloride a Suitable Fertilizer for Cranberries?.
Principle Investigator: Teryl Roper, Dept. of Horticulture, UW-Madison.
Objective: In aeroponic culture compare the growth and nutrient uptake when cranberries are grown with KCl as a potassium source compared to K2SO4. In field trials compare the growth, yield and nutrient uptake when cranberries are grown with KCl as a potassium source compared to K2SO4 at two rates of fertilization.