1Scientist, Soil Science, J.N.K.V.V., College of Agriculture, Ganjbasoba, Vidisha (M.P.)
J.N.K.V.V., College of Agriculture, Ganjbasoda, Vidisha (M.P.)
2Subject Matter Specialist, Krishi Vigyan Kendra, R.V.S.K.V.V., District Dhar (M.P.)
3Scientist, Agricultural Economics, J.N.K.V.V. College of Agriculture, Ganjbasoba, Vidisha (M.P.)
Long term integrated nutrient management trails in Soybean-Wheat sequence in vertisols conducted for many years at J.N. Krishi Vishwa Vidyalaya, Research Farm, Jabalpur revealed that highest sustainable yield index (SYI) was observed in 100% NPK + FYM, while lowest was observed in 100% N treatments in both crops. However, the mean grain yield was not significantly influenced by different nutrient management practices except in case of control (no manure and fertilizers) and 100% N alone treatments. The continuous application of recommended dose of phosphorus fertilizers to soybean (60 kg ha−1) and wheat (80 kg ha−1) crop every year resulted in substantial built up of available phosphorus up to 39 kg P2O5 ha−1 from initial level in the year 1972 i.e. 7.6 kg P2O5 ha−1.
