Land application considerations for animal manure
Manure should always be spread or irrigated uniformly on fields with consideration given to the proper application rate. Nutrient losses, pollution potential and odor are reduced if manure is incorporated into the soil as soon as possible after spreading. In the case of irrigated lagoon effluent, incorporation occurs if the soil is dry enough for the liquid to soak in and the application rate does not exceed the infiltration rate of the soil. When manure is applied to pasture or hay land at proper rates and soil conditions, erosion and runoff are not usually a problem. However, it is important that cultivated land on which manure is applied not be subject to excessive erosion because erosion is an effective mechanism for moving manure nutrients off a field and into a stream. To the extent possible, consideration should be given to the probability of a runoff-causing rainfall event when manure is being land applied.