Integrated phosphorus management on yield and nutrient uptake of urdbean under rainfed conditions of southern Rajasthan

A field experiment was conducted during 2003–04 and 2004–05 on Typic Haplustept at Maharana Pratap University of Agriculture and Technology, Udaipur to assess the effect of P application through different sources on yield and nutrient uptake by urdbean. Application of FYM @ 5 t/ha, 40 kg P2O5/ha and dual seed inoculation with PSB + VAM significantly increased the seed and stover yield and uptake of N, P and K by urdbean. Combined effect of 5 t FYM/ha + 40 kg P2O5/ha, 5 t FYM/ha + dual inoculation with PSB + VAM, and 40 kg P2O5 ha−1 + dual inoculation with PSB + VAM produced significantly higher yield and uptake of N, P and K by urdbean. Maximum net returns (Rs. 31835) were obtained with 5 t FYM/ha + 40 kg P2O5/ha + dual inoculation with PSB + VAM followed by 5 t FYM/ha + 30 kg P2O5/ha + dual inoculation with PSB + VAM.