Aparna Verma, Adesh Singh, Mukesh Kumar, Vivek, Satendra Kumar, Bhim Singh and Sandeep Kumar Verma
Abstract
An experiment was conducted during the kharif seasons of 2023 and 2024 to assess the effect of basmati rice cultivars and potassium management practices on chemical and physical properties and available nutrients of soil. The experiment was laid out in a split plot design (SPD) with three replications and 15 treatment combinations which had consist 3 levels of basmati rice varieties viz. Pusa Basmati-1121, Pusa Basamti- 1718, Pusa Basamti-1885 and 5 levels of potassium management practices viz. Control, 100% RDK, 50% RDK+ 1% K spray at maximum tillering and panicle initiation, 50% RDK+ 0.4 % nano-K spray at maximum tillering and panicle initiation and 50% RDK+ 1% K +0.4 % nano-K spray at maximum tillering and panicle initiation. Among varieties of basmati rice organic carbon, pH, EC, bulk density, available N, P, K and Zn was non-significant whereas, under potassium management practices higher organic carbon was found in 50% RDK+ 1% K +0.4 % nano-K spray at maximum tillering and panicle initiation which was at par with 50% RDK+ 1% K spray at maximum tillering and panicle initiation and 50% RDK+ 0.4 % nano-K spray at maximum tillering and panicle initiation. Available N, P and Zn was non-significant in terms of potassium management practices, higher available K was recorded in 100% RDK which was statistically at par with 50% RDK+ 1% K +0.4 % nano-K spray at maximum tillering and panicle initiation.