Productivity, profitability and quality of soybean (Glycine max) and residual soil fertility as influenced by integrated nutrient management

摘要

A field experiment was conducted at Pantnagar to assess the effect of various fertilizer and manurial treatments on soybean [Glycine max (L.) Merrill] productivity, quality and residual soil fertility during kharif seasons of 2003 and 2004. Fourteen treatments that include use of FYM, B and Fe over 50 and 100% recommended dose of fertilizers (RDF) viz., 20.0-26.4-33.3 kg N-P-K/ha. Integrated use of RDF with FYM or soil application of Fe/B being at par increased the seed yield of soybean significantly over RDF alone (3.13 tonne/ha). Highest net returns were recorded with the application of RDF + 10 tonne FYM/ha. Application of FYM/Fe/B with both 50% RDF and RDF markedly improved the unsaturated fatty acids content (linolenic, linoleic and oleic) and reduced saturated fatty acids (palmatic and stearic) content. Use of FYM and micronutrients helped in maintaining soil fertility and rhizospheric microbial population.