Nutrient composition of poultry manures in England and wales
1996
Nicholson, F.A. | Chambers, B.J. | Smith, K.A.
In this study, 121 poultry manure samples were collected from commercial holdings in England and Wales. The nutrient contents of the individual manure samples varied widely. In general, broiler/turkey litters had a higher dry matter content (c. 60%) than layer manures (c. 35%), although all manure types had similar concentrations of nutrients (N, P, K, Mg, S) on a dry weight basis. Typically N:P:K ratios were 6:2:2 for layer manures and 6:2:3 for broiler/turkey litters. The readily plant available N content (ammonium-N+uric acid-N) of the poultry manures was 30-50% of the total N. The dry matter content of poultry manures is suggested as a useful indicator of total fresh weight nutrient concentrations.
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