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Chapter 7.2

Field Risk Assessment

The assessment window provides space to enter specific information that helps to characterize each field’s natural risk of surface water contamination. Some of the information requested includes length of slope, presence of water bodies, presence of any conservation buffer strips and drainage. Although this information is not critical to developing manure application rate recommendations or allocating stockpiled manure, it can impact decision making for a particular field.

Soil Analysis Information

Soil analysis results for each field are used to calculate manure application rates (Figure 7.2.12). Space is provided to enter information for test year, organic matter content (%), P (along with the method that was used), K, Mg, Ca, Na, Al, soil and buffer pH, estimated or measured CEC, NO

3

-N, EC and SO

4

-S.

Figure 7.2.12 Alberta MMP Soil Analysis Information