Effect of integrated nutrient management on yield of and nutrient uptake by onion and on soil fertility

Vinay Singh; Manoj Pandey

Journal of the Indian Society of Soil Science 54(3): 365-367


Accession: 013362667

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Field experiments were conducted at Raja Balwant Singh College Research Farm, Bichpuri, Agra, Uttar Pradesh, India during rabi seasons of 1997-98 and 1998-99 to develop an appropriate integrated nutrient management (INM) for sustainable production of onion, and to study the status of available nutrients in an alluvial soil. The experiment was laid out in a randomized block design with 9 different INM modules involving NPK (50, 75 and 100% recommended dose), 10 tonnes farmyard manure (FYM) and Azotobacter (200 g culture/litre solution) dipping before transplanting. Data on bulb and dry matter yields, content and yield of protein and nutrient uptake were recorded. Results indicated that the combined use of FYM, fertilizers and biofertilizers (75% NPK + 10 tonnes FYM/ha + Azotobacter) would be the optimum integrated nutrient management practices for higher yield, nutrient uptake and fertility status of soil.