Response of crop nutrient solution on nutrient uptake and residual soil fertility at harvest of preseasonal sugarcane grown on Inceptisol

Abstract

An experiment was conducted at STCRC Research Farm, MPKV, Rahuri, during 2017-19 to find out the response of crop nutrient solution on nutrient uptake and residual soil fertility of preseasonal sugarcane grown on Inceptisol. The experiment was laid in randomized block design consists of ten treatments with three replications. The total uptake of nitrogen, phosphorous, potassium and micronutrients were significant (209.79, 61.81 and 207.40 kg ha-1 respectively and Fe, Mn, Zn and Cu (4865.99, 3130.22, 1463.29 and 359.38 g ha-1 respectively).The residual properties at harvest of sugarcane viz., soil pH, EC and organic carbon were non-significant in treatment of crop nutrient solution fertilizer grade. The residual available nitrogen, phosphorous, potassium and micronutrients were significant as compared to general recommended dose of fertilizers. The highest soil available Phosphorus, Potassium and DTPA-micronutrients was recorded in the treatment 50% more of RDF (510:255:255:90 kg ha-1) through complex crop nutrient solution grade fertilizer (CNS grade), urea, bensulf and 20 t ha-1 FYM.