Longevity of S Availability from Large Gypsum Applications Dick Wolkowski, Extension Soil Scientist The recent interest in the use of FGD gypsum as a soil amendment has resulted in some questions about the longevity of …
Fertility & Soil
Selecting a N fertilizer rate when corn is $7/bu
Selecting a N fertilizer rate when corn is $7/bu Carrie Laboski, Extension Soil Scientist, Dept. of Soil Science, Univ. of Wisconsin-Madison With the current price of corn in the $7/bu range, growers and agronomists have …
Influence of crop rotation and nitrogen fertilizer on oat yield
Influence of crop rotation and nitrogen fertilizer on oat yield Matt Ruark, Dept. of Soil Science, Tim Wood, Lancaster Agricultural Research Station Current UWEX nitrogen (N) application guidelines for oats are 40 lb/ac for soils …
Field-Scale Evaluation of Sweet Corn Response to Nitrogen Fertilizer Application Rates on Wisconsin’s Central Sands: Results After Two Years of Data Collection
Field-Scale Evaluation of Sweet Corn Response to Nitrogen Fertilizer Application Rates on Wisconsin’s Central Sands: Results After Two Years of Data Collection By Ken Schroeder, Matt Ruark, and Don Genrich Wisconsin ranks second in the …
Wet Soils Increase the Potential for Soil Compaction
Wet Soils Increase the Potential for Soil Compaction Dick Wolkowski, Extension Soil Scientist The late heavy snow and persistent rains this spring have saturated Wisconsin soils. Therefore, what producers do in their fields in the next …
Applying Gypsum to Wisconsin Soils
Applying Gypsum to Wisconsin Soils Dick Wolkowski, Extension Soil Scientist The interest in the use of gypsum in crop production has increased in Wisconsin for a variety of reasons. The installation of “scrubbers” at coal-fired power …
Nutrients to Watch in 2011: Sulfur and Potassium
Nutrients to Watch in 2011: Sulfur and Potassium Carrie Laboski, Extension Soil Fertility Specialist, University of Wisconsin-Madison, Jerry Clark, Crop & Soils Agent, University of Wisconsin-Extension, Chippewa and Eau Claire Counties Sulfur (S) and potassium …
Phosphorus Content of Dairy Rations and Manure Wisconsin Trends 2002-2010
Phosphorus Content of Dairy Rations and Manure Wisconsin Trends 2002-2010 John Peters, Department of Soil Science Comparison of dairy TMR total P levels with manure P content For the past nine years the UW Soil …
New Instructional Video on Calibrating a Manure Spreader
New Instructional Video on Calibrating a Manure Spreader Kevin B. Shelley, UWEX Nutrient and Pest Management Program The UW Extension Nutrient and Pest Management Program has produced an instructional video on determining manure application rates …
Soil Sampling and Testing Issues For Nutrient Management: Certified Labs and Grid Sampling
Soil Sampling and Testing Issues For Nutrient Management: Certified Labs and Grid Sampling Kevan Klingberg, UW Discovery Farms Program Twice this winter I have run into snags helping individual producers walk their way into loading …