Yield of black gram and uptake of primary nutrients as influenced by integrated nutrient management on typic Haplustept soil of Rajasthan

A field experiment was conducted on the Instructional Farm of Rajasthan College of Agriculture, Udaipur during kharif 2016 with the objective to see the effect of integrated nutrient management on uptake of primary nutrients and yield of Black gram. The results of the study reveals that the application of chemical fertilizers along with vermicompost and biofertilizers gaves the best results in terms of yield of Black gram as well as nutrient uptake by Black gram. Seed yield (1246.66 kg ha-1), straw yield (1442.16 kg ha-1) and biological yield (2688.81 kg ha-1) of Black gram was found maximum with the application of 40 kg P2O5 ha-1 + 2.5 t vermicompost ha-1 + Rhizobium + PSB (T9). Total uptake of nitrogen (68.88 kg ha-1), phosphorus (9.14 kg ha-1) and potassium (46.33 kg ha-1) was also found maximum with the application of 40 kg P2O5 ha-1 + 2.5 t vermicompost ha-1 + Rhizobium + PSB (T9).