Trends in Dry Matter Yield Following Differential Broiler Litter Application from a Soil Enriched with Organic Matter and Phosphorus
K. R. Brye, A. L. Daigh, B. C. Menjoulet, M. L. Pirani, and C. P. West
April 2010
Research
Repeated annual litter application can result in degraded water quality if P-enriched sediment enters waterways after being transported from areas prone to erosion. It is unclear how soon forage producers may need to begin using inorganic fertilizers to supply nutrients to meet target yields if P-based nutrient management plans indicate that litter application should cease. The main objective of this study was to evaluate annual dry matter (DM) yield trends for broiler litter application rates of 0, 2.5, and 5 tons/acre over a 6-year period for a site that had high near-surface, soil-test P and enriched soil organic matter from a history of litter application.
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