Nutrient Cycling Under Grazing Conditions

Cows in pasture



Long-term, from 1985 to date, stocking of bermudagrass pastures overseeded with ryegrass plus nitrogen or clover without nitrogen fertilizer has been evaluated.  Stocking rate has not been a contributing factor to soil nitrate-nitrogen levels.  Soil analysis indicated no potential contamination due to stocking rate or phosphorus fertilization.  The bermudagrass stand was sustainable at low stocking rates without nitrogen fertilization.  At high stocking rates and without nitrogen, a shift in plant species composition occurs that may not meet stakeholder objectives.

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