Assessment of Soil Fertility through Response of Rice (Oryza sativa L.) to Nutrient Omission in Alfisols of Kondagaon District of Chhattisgarh in India

The investigation was carried out with the aim to identify specific yield limiting nutrients through response of rice nutrient omission in pot culture under completely randomized design 3 replications and 11 treatments during kharif season 2017 demonstrate optimum use identified wheat crop at field level Kondagaon district rabi 2017-18. were formulated by keeping one treatment application all others sequentially omitting each nutrient. soil had a clay loam texture, neutral reaction (pH 6.6), normal electrical conductivity, medium organic C, available P K, low N S, high Ca, Mg, Fe, Mn Cu marginal Zn B. Omission significantly reduced growth, uptake comparison nutrients. maximum grain 73.0 g pot-1 recorded, 50.1 % reduction rice, from yield, recorded omitted pots, followed 18.8 pots other didn’t reduce indicating that only In verification season, 19.0 increase 23.0 net return due dose over farmer's practice dose. results clearly indicate site management based on study found economically profitable farmers.