Abstracts |
Field experiment conducted at BCKV farm, W.B., with blackgram during late Kharif and early winter season (September to December) in split plot design with two levels of inoculation (no inoculation, with inoculation) allotted on the main plots, three levels of phosphorus (0, 20 and 40 kg P2O5 ha-1) allotted on the subplots under each main plots and three levels of molybdenum (0, 0.5 and 1.0 kg Moha-1) allotted on the ultimate plots under each sub plot revealed that application of inoculation, phosphorus and molybdenum significantly influenced the no. of nodules/plant, no. of primary branches/plant, dry matter accumulation in plant shoot, crop growth rate, no. of pods/plant, no. of seeds/pod, test weight, seed and stalk yield of blackgram. The seed yield for inoculation was 9.74 q ha-1, being significantly better than untreated control with an increase by 5.41%. Maximum seed yield (10.36 q ha-1) was obtained for the dose of 20 kg P2O5 ha-1 being significantly better over 40 kg P2O5 ha-1. The increase in seed yield for 20 and 40 kg over control was 17.33% and 4.19% respectively. The optimum dose of phosphorus for maximum seed yield was 21.205 kg P2O5 ha-1. Maximum seed yield (10.38 q ha-1) was obtained for the dose of 0.5 kg Moha-1, being significantly superior to 1.0 kg Moha-1. The increase in seed yield for 0.5 and 1.0 kg over control were 20.14% and 9.26%, respectively. The optimum dose of molybdenum for maximum seed yield was 0.528 kg Moha-1. For maximum seed yield of 12.22 q ha-1, the best combination was 20 kg P2O5 ha-1+0.5 kg Moha-1 with inoculation. The response of the crop to P2O5 and Mo was maximum at 20 kg P2O5 ha-1 and at 0.5 kg Moha-1, respectively. |