Increasing toria yield through integrated nutrient management in Sonitpur district of Assam

Abstract

The present study was carried out to investigate the impact of Integrated Nutrient Management (INM) on the productivity of toria (Brassica rapa var. Toria) in the rainfed agro-ecosystems of Sonitpur district, Assam, over three consecutive rabi seasons. Seventy-five farmers across five villages were selected for comparing INM practices using high-yielding toria variety TS 67 with local farmer practices. Results revealed that an average yield increase of 23% in INM plots over check plots, with the highest yield gain (26.2%) recorded in 2021-22. Soil analysis before and after the cropping seasons also demonstrated marked improvement in organic carbon (23.4% increase) and available macronutrients (N, P, K) in INM-treated fields. Economic analysis showed higher gross and net returns in demonstration plots. Yield gap analysis confirmed a reduction in both technology and extension gaps under INM.