Phosphorus and arsenic uptake by corn, wheat and soybean from broiler litter ash and egg layer manure ash
2013
Codling, Eton E.
Poultry litter is being incinerated to reduce excess litter, and the ash from incineration is being used as fertilizer. The objective of this study was to compare the availability of phosphorus (P) from broiler litter ash (BLA), egg layer manure ash (ELMA) and calcium phosphate for corn, wheat and soybean. Other elements such as arsenic are also concentrated in the ashed litter. Calcium phosphate, BLA and ELMA were mixed with soil at 40 and 80 mg P kg⁻¹. Crops were grown for about six weeks. Biomass and phosphorus concentrations were highest for plants grown on the calcium phosphate treatments. At the highest phosphorus rate, phosphorus concentrations were 1135,963 and 939 mg kg⁻¹ in corn shoot for calcium phosphate, ELMA and BLA, respectively. Arsenic concentrations for plants grown on ash treatment were similar to the control. Results from this study indicated that phosphorus in the ash was not readily available for crop uptake.
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