EFFECT OF PHOSPHORUS, MOLYBDENUM AND Rhizobium INOCULATION ON YIELD AND YIELD ATTRIBUTES OF MUNGBEAN

Rahman M.M., Bhuiyan M.M.H., Sutradhar G.N.C., Rahman M.M. and Paul A.K. 2008. Effect of Phosphorus, Molybdenum and Rhizobium Inoculation on Yield and Yield Attributes of Mungbean. Int. J. Sustain. Crop Prod. 3(6):26-33 An experiment was conducted during kharif season, 2005 at Soil Science Division, Bangladesh Agricultural Research Institute to study the effect of phosphorus (P), molybdenum (Mo) and Rhizobium inoculation on the yield and yield contributing characters of mungbean (Vigna radiata) on a silty clay loam soil. The experiment was laid out in RCBD with four replications. Ten treatments were formulated with the combination of 4 levels of P (0, 20, 40, 60 kg/ha) and 2 levels of Mo (1.0, 1.5 kg/ha) having a common Rhizobium inoculant. P and Mo application at the rate of 40 and 1.0 kg/ha respectively, significantly increased yield and yield contributing characters of mungbean compared to uninoculated and control. Highest stover (26.67 g/plant) and grain yield (14.61 g/plant) were obtained with P (40 kg/ha), Mo (1.0 kg/ha) and Rhizobium inoculation. Above these levels of P and Mo decreased yield and yield contributing characters. Dry weight of plant tops, seed yield/plant and yield-contributing characters were positively correlated with the number of nodules/plant. Combined application of Rhizobium inoculant along with 40 kg P and 1.0 kg Mo/ha was considered to be the suitable combination of fertilizer for mungbean cultivation in silty clay loam soils.