Effect of fertility levels on nutrient contents and uptake of soybean (glycine max) genotypes

A field experiment was conducted during rainy seasons of 2009 and 2010 to study the effect of fertility levels on nutrient contents and uptake of soybean genotypes. The nutrient contents in grain and straw viz., N, P, K, S and Zn did not deviate significantly due to different genotypes and fertility levels as well as their interactions. Amongst the genotypes, nutrients uptake of N, P, K, S, Zn was non-significantly higher in grain and straw of JS 81–1504 except P uptake. The nutrients uptake in grain and straw was significatly higher due to applied fertility levels over control. The highest nutrients uptake by soybean producing a total biomass upto 27.50 q/ha with highest fertility level (N₃₀P₆₀S₄₀Zn₁₀) was 106.15 kg N, 14.84 kg P, 47.50 kg K, 7.11 kg S and 2.97 kg Zn/ha. The findings suggest that due to heavy withdrawal of nutrients by soybean genotypes, the succeeding crop must be nourished properly based on soil test values.