Soil Quality

Environmental quality concerns related to soil management are primarily related to N and P levels in the soil. Manure is a valuable resource as a soil amendment that can actually reduce environmental quality problems by increasing water infiltration and water storage in the soil profile. Environmental quality problems result from

Flow of Manure in Swine Operations Environmental Impact

Buildings

• Gestation/Farrowing

• Nursery

• Grow-finish

Manure storage

• Lagoon

• Deep pit

• Slurry store

• Deep bedding

• Surface broadcast

• Irrigation

Surface water

Ground water

Surface water

Ground water

Surface water

Ground water

Surface water

Ground water

Manure application

• Surface broadcast

• Irrigation

Surface water

Ground water

Surface water

Ground water

Fig. 1 Flow of manure through a swine production operation and the environmental endpoints at each phase. (Adopted from Ref. [1].)

manure added to soil when there is surface runoff that moves either ammonia or P into streams. This topic is covered in a related article on nutrient management/soil and water quality.

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