Why is manure applied to cropland?
Application of manure to cropland is a benefit to crops and soil. Every living thing needs nutrients to grow. Plants require nitrogen, phosphorus, potassium and 10 other chemical elements. Most of these nutrients enter the plants through soil.
Application of manure, which contains nutrients including nitrogen and phosphorus, is an important part in completing the natural nutrient cycle of agriculture.
For farmers, the cost of properly applying and managing manure as a fertilizer is returned many times over in the value of increased crop production. Fertilizers are a costly input to crop production; therefore, the most beneficial use of manure nutrients is important for economic sustainability.
Farmers must develop nutrient management plans to address the complexities of extracting the fertilizer value of manure in modern cropping systems. Those plans ensure that manure is being applied in an environmentally sound manner.
The organic compounds in manure help build and maintain soil structure, which in turn helps maintain soil tilth, adds waterholding capacity, improves soil aeration and reduces soil erosion.
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