Comparative study of impact of Rhizobium, Phosphate Solubilizing Bacteria, Vermicompost and Urea fertilizer on growth parameters, Chlorophyll and Protein content of soybean (Glycine max)

Abstract

A pot experiment was conducted to evaluate the impact of biofertilizer and chemical fertilizer on growth parameters, Chlorophyll and Protein content of soybean (Glycine max). Soybean seeds were treated separately with Rhizobium, Phosphate Solubilizing Bacteria, Vermicompost and Urea. Seven days and fifteen days old seedlings were used to assess shoot length, root length, fresh weight, dry weight, leaf perimeter and vigour index, Protein content and Chlorophyll content. The results showed that the all growth parameters get increased in plants treated with biofertilizers as compared to control. Protein content (35.89 mg/g) was higher in Phosphate Solubilizing Bacteria treated 7 days old seedlings while in 15 days seedlings Protein content (50.28 mg/gm) was higher in Vermicompost treated seedlings as compared to control. In 7 days old seedlings there was no increase in Chlorophyll content in all treatments while in 15 days Chlorophyll (a) (0.1639 mg/g) was highest in Urea treated seedlings as compared to control. Chlorophyll (b) content (2.4897 mg/g in 7 days, 2.4664 mg/g in 15 days) and total Chlorophyll content (2.5099 mg/g in 7 days, 2.6292mg/g in 15 days) was highest in Urea treated seedlings in 7 and 15 days old seedlings of soybean as compared to control. Highest germination percentage was observed in Phosphate Solubilizing Bacteria and Vermicompost. The present study suggest that the Vermicompost is the best suited for getting protein rich soybean