Things Farmers Should Know Agriculture Performance Standards and Prohibitions (APSP) APSP Summary (pdf). The APSPs are used by the Conservation Division throughout several programs as minimum criteria that all farmers need to follow to stay in compliance with various County and State programs. DNR APSP Website DATCP APSP Website "What Farmers need to know" A publication from the WI DNR about some basic things all farmers should know about State laws that affect them. Wisconsin Runoff Information Nutrient Management- NRCS standard 590 (pdf) SNAP-Plus is Nutrient Management Planning software program designed for the preparation of nutrient management plans in accordance with Wisconsin’s Nutrient Management Standard Code 590. The program is available for download from the "Current Version" link. SNAP-Plus Website An NRCS supporting document for Nutrient Management is Tech Note 1 (pdf).