Influence of single superphosphate incubation with farmyard manure on enhancing phosphorus-use efficiency in rainfed upland rice (Oryza sativa) farming
Singh, R. K; Singh, V. P, 'Influence of single superphosphate incubation with farmyard manure on enhancing phosphorus-use efficiency in rainfed upland rice (Oryza sativa) farming', 2003