Divide the field into sections of uniform slope gradient and length. The erosion values reflected by these factors can vary considerably due to varying weather conditions. The sample field was plowed in the spring and grain corn was planted. Skip to content Ontario. Having obtained an estimate of the potential annual soil loss for a field, you may want to consider ways to reduce this loss to a tolerable level. Multiply these two factors together to obtain the C factor. The selection of a support practice that has the lowest possible factor associated with it will result in lower soil losses.
Five major factors are used to calculate the soil loss for a given site.
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Use minimum tillage systems where possible. Table 7 outlines management strategies to help you reduce soil erosion. Multiply the 5 factors together to obtain the soil loss per hectare acre. Repeat for other soil types as necessary. The C factor is a ratio comparing the soil loss from land under a specific crop and management system to the corresponding loss from continuously fallow and tilled land.