Studies on utilization of biogas poultry manure in crop production

Field experiment was conducted for two consecutive years in both seasons i.e., kharif and rabi on a sandy loam soil, to study the effect of biogas poultry manure (BPM), a byproduct of poultry industry that is used for biogas production on performance of two crops used as important poultry feed i.e., maize and cowpea. Application of 50, 75 and 100 per cent N through biogas poultry manure (BPM) resulted in a significant increase in cob and stover yield of maize. The green fodder yields of cowpea which was grown on residual fertility, were significantly influenced by poultry manure and biogas poultry manure. The soil fertility status of available major nutrients (N, P₂O₅ and K₂O) was found to be significantly higher in the treatment that received N through biogas poultry manure or poultry manure. Effect on the soil physico-chemical properties was nonsignificant.