Is Land Rolling a Practice for Wisconsin Crop Production?

Is Land Rolling a Practice for Wisconsin Crop Production? Dick Wolkowski, Extension Soil Scientist Land rolling is the practice of pulling large cylindrical rollers over fields with the objective of smoothing the ground. Typically the practice is conducted just prior to … Continue reading

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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 and Forage Analysis Laboratory has … Continue reading

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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 as part of the process … Continue reading

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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 farm information into SNAP-Plus (nutrient … Continue reading

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Nutrient Content for Dairy and Swine Manure in Wisconsin, 1998-2010

Nutrient Content for Dairy and Swine Manure in Wisconsin, 1998-2010  John Peters, Department of Soil Science, UW-Madison The nutrient value of manure can be assigned by using estimated “book” or average available N, P2O5 and K2O content. However, testing manure may … Continue reading

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Average Soil Test Phosphorus and Potassium Levels Decline in Wisconsin

Average Soil Test Phosphorus and Potassium Levels Decline in Wisconsin John Peters, Department of Soil Science Soil test data from over five million samples collected from Wisconsin farmland and analyzed by both public and private Wisconsin Department of Agriculture, Trade … Continue reading

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USDA-APHIS grants nonregulated status for roundup ready alfalfa

USDA-APHIS grants nonregulated status for roundup ready alfalfa Mark Renz, Extension Weed Scientist, University of Wisconsin Madison On January 27, 2011 USDA-APHIS announced it will deregulate Roundup Ready alfalfa. This decision will lift the three year ban on planting of … Continue reading

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Nitrogen Rate of Return Calculator UPDATED

Nitrogen Rate of Return Calculator UPDATED Mike Rankin, Crops and Soils Agent,UW Extension-Fond du Lac Co. A simple spreadsheet can be used to evaluate different net return per acre scenarios involving nitrogen (N) source, N cost, and expected corn price. The spreadsheet lets … Continue reading

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Beta test – Seedcorn maggot thermal model, first-generation peak adult emergence at 360 D.D.

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Beta test – Alfalfa Weevil Thermal Model, Start scouting at 300 D.D.

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