Effect of PBSW and Biofertilizers on the Solubilization of P from RP to Soybean in Inceptisol

The field trial was conducted during Kharif season (2009-2010) at Post Graudate Institute Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri to study the effect of PBMSW and biofertilizers (PSB and EM) on the availability of P from RP to soybean in inceptisol soil. The trail was layed out in RBD with 3 replications and seven treatments. The experimental soil was alkaline in reaction sandy loam texture, moderately high in organic C, low in available N, medium available P and high available K. The applied PBMSW was near to neutral in reaction and high EC. The total P₂O₅ in RP was 19.17 per cent. The treatments were composed of T₁-Absolute control, T₂-GRD, T₃-PBMSW@60m3ha^-1, T₄-RP+PBMSW, T₅-RP+PBMSW+PSB, T₆-RP+PBMSW+EM and T₇-RP+EM+PSB. The results of experiments regarding soil status after harvest of soybean revealed that significant reduction in soil pH (8.30 to 8.17) and increased EC (0.34 to 0.43 dsm^-1), organic carbon (0.54 to 0.73%), calcium carbonate, total P, available N, P and K. There was also increase in the uptake of N, P, K by soybean due to application of PBMSW @ 60m³.