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Crop Research

Effect of Greenseeker-based nitrogen management on yield and yield traits of summer rice cultivars


DOI: 10.31830/2454-1761.2026.CR-1067    | Article Id: CR-1067 | Page : 8-14
Citation :- Effect of Greenseeker-based nitrogen management on yield and yield traits of summer rice cultivars. Crop Res. 61: 8-14
NAMBURI SRI SATYA AAKASH, BANDANA RANI BARIK, CHANDRASEKHAR SAHU AND JNANA BHARATI PALAI bandanabarik.ruby@gmail.com
Address : M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemund-761211i, Odisha, India
Submitted Date : 2-09-2025
Accepted Date : 9-01-2026
Online Published:

Abstract

Rice is a key crop for eastern India and the nation as a whole. While inorganic nitrogen fertilisers have boosted yields, their inefficient use causes environmental issues such as greenhouse gas emissions and river eutrophication. Rice productivity largely depends on efficient nitrogen management, and precision approaches like GreenSeeker-based nitrogen application, which adjusts fertiliser rates according to crop reflectance and NDVI, are increasingly popular for enhancing yield while minimising environmental impact. Based on this, the present research was conducted at the Post-Graduation Research Farm, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Odisha, during the summer season of 2024-25. The Experiment was laid out in a split-plot design with 8 treatment combinations consisting of 2 rice varieties (MTU-1010, MTU-1156) and 4 levels of GreenSeeker values (0.5, 0.6, 0.7, and 0.8).  Rice varieties were taken to observe the response of different nitrogen doses as well as the time of application using GreenSeeker values. The results revealed that the MTU-1156 variety outperformed MTU-1010 in yield attributes and overall yield, including effective tillers, panicle length, filled grains, test weight, grain, straw, and biological yield, due to its superior nitrogen responsiveness, growth, and stress tolerance. Nitrogen application guided by GreenSeeker at 0.7 further enhanced these traits, showing results comparable with an NDVI of 0.8, and strong positive correlations were observed between grain yield and key attributes such as productive tillers, panicle length, filled grains, and test weight. Therefore, the combination of MTU-1156 and nitrogen application at GreenSeeker 0.7 is recommended for summer rice cultivation in South Odisha, India, to achieve maximum productivity and efficiency.

Keywords

GreenSeeker nitrogen management rice varieties

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