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  • Broiler Litter Application ...
    Brink, G.E; Sistani, K.R; Oldham, J.L; Kingery, W.E; Johnson, B

    Journal of sustainable agriculture, 02/2008, Volume: 31, Issue: 4
    Journal Article

    The effect of broiler litter application rate on bermudagrass Cynodon dactylon (L.) Pers. yield and nutrient uptake, and on phosphorus (P) level of two associated soils was studied over three years. Five litter rates (0, 4.48, 8.96, 17.92, and 35.84 Mg h-1; on as-is basis) were applied each year to two geographically associated soils: a Ruston fine sandy loam with no history of litter application and a Savannah fine sandy loam with high soil P due to thirty years of application. Annual forage yield and nutrient uptake increased quadratically in response to application rate. Apparent P recovery averaged 12% on the Ruston soil and 4% on the Savannah soil. Within three years, P levels of both soils were equivalent, indicating that without consideration of litter application rate, P level of even low-P soils can rapidly reach excessive levels.