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Crop Research

Comparative performance of foliar spray of urea and nano urea on productivity and nitrogen uptake of rice (Oryza sativa L.) in Southern Odisha


DOI: 10.31830/2454-1761.2025.CR-1048    | Article Id: CR-1048 | Page : 259-265
Citation :- Comparative performance of foliar spray of urea and nano urea on productivity and nitrogen uptake of rice (Oryza sativa L.) in Southern Odisha. Crop Res. 60: 259-265
DEBASMITA MONDAL, SUPRAVA NATH2, TANMOY SHANKAR, BISHNUPRASAD DASH AND JNANA BHARATI PALAI supravanath96@gmail.com
Address : Department of Agronomy and Agroforestry, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi-761211, Odisha, India
Submitted Date : 21-07-2025
Accepted Date : 11-08-2025
Online Published:

Abstract

Rice relies on significant and continuous nitrogen nutrition across its entire growth period. Imbalanced nitrogenous fertilization of rice not only leads to reduced crop yields but also degrades soil quality. The foliar application of nitrogen plays a decisive role in plants’ growth and development. Therefore, a field experiment was conducted in Kharif, 2023, at the Post Graduate Research Farm, Centurion University of Technology & Management, Odisha. The experiment was conducted in a Randomized Complete Block Design, comprising 8 distinct nitrogen application treatments, each with different timing and proportional rates, arranged across three replications. The results of the experiment revealed that the significantly highest plant height (138.5 cm), number of tillers (264/m2), dry matter accumulation (1358 g/m2), number of panicles (249/m2), number of spikelets/panicle (159), grain yield (5997 kg/ha), straw yield (7643 kg/ha) were obtained in the application of 75 % RDN through urea (50 % at basal + 25 % at tillering) along with three foliar sprays of nano urea (FSNU) @ 4 ml/L at maximum tillering, jointing and panicle initiation (PI) which was at par with 75 % RDN through urea (50 % at basal + 25 % at tillering) + 3 foliar spray of urea (FSU) @ 2 % at maximum tillering, jointing and PI compared to the other treatments. The significantly lowest values were recorded in control. The study concluded that application of 75 % RDN through urea (50 % at basal + 25 % at tillering) + three FSNU @ 4 ml/L at maximum tillering, jointing, and PI enhances vegetative growth, yield components, and ultimately grain yield in Kharif rice.

Keywords

Foliar spray grain yield nano urea rice urea

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