Page 181 - Nutrient Management Planning Guide

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Chapter 4.4

AOPA requires that manure be •

incorporated within 48 hours of application, unless manure is applied to forages, direct-seeded, frozen or snow covered land. Manure may not be applied within •

30 metres of a well. Manure application adjacent to common •

bodies of water requires a setback distance of 10 metres if injected and 30 metres if surface applied and incorporated within 48 hours. In situations where manure cannot be •

incorporated, manure may not be applied within 150 metres of a residence or other building or structure occupied by people, and the application setback distances from water bodies increases with slope grade (minimum 30 m).

Under AOPA, manure application rates are •

restricted based on NO

3

-N in the top 60 cm of soil. The maximum allowable level depends on soil texture, depth to water table and soil type. Manure may not be applied if its •

application would result in a one dS/m increase in EC in the top 15 cm (6 in) of the soil. Manure may not be applied to soil if the •

soil EC, prior to application, is more than four dS/m. Regular soil sampling as part of a nutrient management plan is the most reliable way to assess and monitor changes in soil salinity.

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