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Plant Science Today (PST)

Research Articles

Vol. 12 No. 2 (2025)

Advancing the growth and yield of transplanted puddled rice (TPR) through nanofertilization

DOI
https://doi.org/10.14719/pst.4613
Submitted
9 August 2024
Published
03-03-2025 — Updated on 01-04-2025
Versions

Abstract

The study's main purpose was to evaluate the impact of foliar application of nano nitrogen, phosphorous and potassium (nano NPK) on key growth stages of TPR, including tillering, panicle initiation (PI) and flowering. The field experiment was conducted from December 2023 to April 2024 during the late rabi season at the Department of Agronomy, V.O.C Agricultural College and Research Institute, Killikulam, Tamil Nadu, India. The experiment utilized a randomized block design with 14 treatments and 3 replications. Results showed that the 100% RDF (Recommended dose of fertilizers) applied as a soil treatment achieved the highest dry matter production (DMP) and crop growth rate (CGR), followed closely by 3 foliar applications of nano NPK. The control treatment, with no fertilizer application, recorded the lowest values on DMP and CGR. A similar trend was observed for plant height, number of tillers, leaf area index (LAI) and chlorophyll content. For grain yield, straw yield and harvest index, both 100% RDF soil application and 3 foliar applications of nano NPK recorded the highest results. The benefit-cost ratio was found to be higher in RDF as a soil application. The study concluded that both 100% RDF soil application and 3 foliar applications of nano NPK performed equally well in enhancing growth and yield.

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