Evaluation of Rice (Oryza sativa L) Varieties in Relation to Various Integrated Nutrient Modules for Crop Growth, Yield and Yield Attributes under SRI Method

Abstract

A field experiment was conducted in the year 2017 Kharif season at the Agronomy Research Farm of Narendra Deva University of Agriculture & Technology, Ayodhya (Uttar Pradesh) to assess the Rice (Oryza sativa L.) varieties for crop growth, yield, and yield attributes under various integrated nutrient modules using the SRI method. The experimental design comprised three prominent rice varieties (M1- NDR-97, M2- Sarjoo-52, and M3- Mahsuri) as primary treatments, alongside three distinct nutrient levels (N1- 100% RDF, N2- 75% RDF + 25% FYM, and N3- 75% RDF + 25% Vermicompost) as subplot treatments, arranged in a split-plot design and replicated four times. The findings demonstrated that all growth parameters, including plant height (cm), number of tillers (m-2), dry matter accumulation (g m-1), and yield attributes such as effective tillers per hill, panicle length, number of grains per panicle, test weight (g), and grain and straw yield (t ha-1), were highest in the Mahsuri variety, which outperformed the Sarjoo-52 and NDR-92 varieties. The application of N1-100% RDF resulted in considerably superior growth parameters, yield attributes, and both grain and straw yields compared to the treatments of (N2) 75% RDF + 25% FYM and (N3) 75% RDF + 25% Vermicompost. The results indicate that the incorporation of inorganic fertilizer with organic manure (FYM) improved rice output. The utilization of 100% RDF in conjunction with the Mahsuri variety was advantageous in enhancing growth parameters, yield attributes, and overall productivity of the rice crop.