Effect of Phosphorus and Bio-fertilizers on Growth and Yield of Urdbean [Vigna mungo (L.) Hepper]

A field experiment was conducted during kharif season of 2014 on loamy sand soil to study the effect of phosphorus levels and bio-fertilizers on growth and yield of urdbean. Experiment consisted of four treatments of phosphorus levels (0, 20, 40 and 60 kg/ha) and four treatments of bio-fertilizers (control, PSB, VAM and PSB + VAM) thereby making sixteen treatment combinations tested in randomized block design with three replications. Result indicated that application of phosphorus up to 40 kg/ha significantly increased the growth and yield determining characters viz., plant height, number of branches/plant, dry matter accumulation/m row length, number and weight of root nodules/plant, CGR, RGR, number of pods/plant, grains/pod, test weight, grain yield, straw yield, biological yield, harvest index and net returns and its remain at par with 60 kg/ha. Seed and soil inoculation with PSB + VAM significantly enhanced the growth and yield attributing characters over PSB, VAM and control.