Production Potential, Economics and Nutrient Uptake of Sesame {Sesamum indicum) Under Different Organic Nutrient Management Practices in Rainfed Region of Rajasthan

摘要

A field experiment was conducted during the kharif season 2010 to 2012 at Dryland Farming Research Station, Bhilwara (Rajasthan) to evaluate the effect of organic nutrient management practices on production, economics and nutrient uptake of sesame {Sesamum indicum). Application of enriched compost @ 4 t/ha along with biodynamic manure (BD) 500 @ 62.5 g/ha in 40 L water and BD 501 @ 2.5 g/ha in 40 L water with PSB and Azotobacter produced higher growth and yield attributes, yield (788 kg/ha) and economics (3.84) of sesame. On average, significant increase in seed yield due application of enriched compost @ 4 t/ha + BD 500 + BD 501 + Azotobacter + PSB was 18.5, 28.8 and 14.2% over the application of FYM @ 8 t/ha + Azotobacter + PSB, vermicompost @ 4 t/ha + Azotobacter + PSB and enriched compost @ 2 t/ha + Azotobacter + PSB, respectively. Biodynamic manure 500 and 501 in combination with enriched compost @ 4 t/ha gave an additional yield of 98 to 259 kg/ha as compared to sole application of enriched compost, FYM or vermicompost to sesame. Application of enriched compost @ 4 t/ha + BD 500 + BD 501 + Azotobacter + PSB also resulted in maximum net return (IR/s 52704/ha), B:C ratio (3.84) and also had significant effect on uptake o| nitrogen, phosphorusand potash by sesame.