The new CNMP program of the NRCS requires simultaneous integration of five components:

• A conservation plan (RUSLE2);
• A nutrient management plan (NRCS 590 – P based);
• A record keeping program (CNMP);
• A manure/wastewater manager (CNMP);
• A feed management program (CNMP).

Most of these components are prepared tediously, by hand, often independently of each other. We have linked software programs that deal with conservation planning, nutrient management, record keeping, and manure management into a single software tool called SNAP-Plus, which has a simple user interface and output forms. The outputs of this tool can then be combined into a CNMP. The SNAP-Plus software is based on a widely accepted and easy to use nutrient management tool, SNAP2000; to which we have added the new Wisconsin P Index (PI); a P and K balancer; and the soil erosion estimator RUSLE2. It will require much less time than current nutrient management planning approaches; it will be internally consistent (i.e., rates and forms of fertilizer/manure, crop rotation, etc. will be consistent across all sub models); and electronic input and output of data will be instantaneous, clear, and consistent. This software implements a comprehensive approach to managing manure and nutrients in accordance with the new Wisconsin NRCS 590 Standard by including the PI and RUSLE2. It also facilitates field and farm level “what if” experimentation by providing field-by-field and whole farm views with immediate feedback for management decisionmaking.