Effect of biofertilizer and phosphorus levels on yield attributes, yield and quality of urdbean (Vigna mungo)

A field investigation was conducted at farmer's field during the rainy seasons of 2000 and 2001 to study the effect of bio-fertilizer inoculation and phosphorus fertilization on yield and quality of the cultivars of urdbean (Vigna mungo (L.) Hepper] ‘UG 218’ urdbean produced significantly higher pods/plants, 1,000-seed weight, seed yield as well as straw yield over other 2 varieties. However, the protein content was higher in the seeds of ‘Type 9’. The practice of seed inoculation with phosphorus-solubilising bacteria showed a significant increase in seed yield and its attributes as well as protein content and N and P uptake over uninoculated treatment. Response of crop to phosphorus fertilization was significant up to 60 kg P₂O₅/ha for seed and straw yields. Phosphorus application also resulted in significant increase in seed protein content and N and P uptake in seed and straw.