Effect of nutrient management on quality, NPK content and uptake in rice (Oryza sativa L.) under rice-wheat cropping system

Abstract

In the present experiment rice variety HUR-105 (P9) was grown under irrigated conditions during Kharif 2012 at the Agricultural Research Farm, Institute of Agricultural Sciences, B.H.U., Varanasi, India under RBD replicated thrice with 7 treatments to evaluate the quality parameter, nutrient content and nutrient uptake. Application of 75% RDF and 25% N through vermicompost or sesbania registered maximum protein content and were significant. The maximum protein yield obtained with 100% RDF + S40Zn5B1.5 kg ha-1 and lowest in control (N, P, K: 00,00,00). The highest nitrogen and potassium content by rice grain and straw were recorded with the application of 75% RDF + 25% N through vermicompost. The phosphorus content in grain was highest with 100% RDF + S40Zn5B1.5 kg ha-1 while in straw it was maximum with customized fertilizer. The higher K content in grain and straw were noticed in 75% RDF + 25% N through sewage sludge.