1. The Wisconsin Soil Test Recommendation Program UWEX Publication A2809: Nutrient Application Guidelines for Field, Vegetable, and Fruit Crops in Wisconsin

3. A2809 – “The Bible” Incorporates over 80 years of research The official recommendations for NRCS 590 NMP Supported by UW Soil Science Department Two state-run labs Uses local calibration Continuously updated Revised in 2006

4. Philosophy of the Wisconsin Soil Test Recommendation Program Establishes Soil Sampling and Testing Methods Interprets Fertilizer and Lime Needs Wide Range of Field Crops and Soils Uses a Sufficiency Approach –Index of available nutrients –Degree of sufficiency for specific crops –Provide recommendation to correct –Allows economic and informed decision

5. Soil Sampling Method for Single-Rate Nutrient Application

6. UW Soil Testing Methods

8. Soil Groups

11. MRTN Guidelines for Corn

13. Soil Test Categories for P and K

16. P and K Fertilization Guidelines

17. Sulfur Availability Index ● Soil test S ● Subsoil S ● Precipitation ● Organic matter ● Manure history

19. Soil pH Management