Comparative Study of Zinc Doses and Application Methods Ensuring Maximum Productivity of Boro Rice

Md. Mominul Islam¹ , M. Robiul Islam² , Md. Tariful Alam Khan³

1. Department of Agronomy and Agricultural Extension, Farming Systems Engineering Laboratory, University of Rajshahi, Rajshahi, 6205, Bangladesh.
2. Department of Agronomy and Agricultural Extension, Farming Systems Engineering Laboratory, University of Rajshahi, Rajshahi, 6205, Bangladesh.
3. Department of Agronomy and Agricultural Extension, Farming Systems Engineering Laboratory, University of Rajshahi, Rajshahi, 6205, Bangladesh.

Section:Research Paper, Product Type: Journal-Paper
Vol.10 , Issue.8 , pp.52-58, Aug-2024

Online published on Aug 31, 2024

Copyright © Md. Mominul Islam, M. Robiul Islam, Md. Tariful Alam Khan . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The experiment was conducted at the Agronomy Field Laboratory, Department of Agronomy and Agricultural Extension, University of Rajshahi from January to May 2020 to study the effects of different zinc application methods on the growth and yield of three boro rice varieties: BRRI dhan28, BRRI dhan29, and BRRI dhan58. The study employed a factorial Randomized Complete Block Design with three Zn treatments: root dipping in Zn solution just before transplanting (T1), foliar application of Zn at the tillering stage (T2), and foliar application of Zn at both the tillering and flowering stages (T3). The results demonstrated that Zn application significantly affected plant height, total tillers, panicle length, and yield parameters. Among the varieties, BRRI dhan58 (V3) consistently exhibited superior growth and yield. The T3 treatment, involving foliar application at both the tillering and flowering stages, produced the highest plant height, total tillers, effective tillers, panicle length, and grain yield compared to T1 and T2. Specifically, the V3T3 combination achieved the highest grain yield (6.82 t ha-1) and straw yield (9.13 t ha-1). This study highlights the critical role of Zn management in optimizing boro rice production, with the dual-stage foliar application proving to be the most effective in enhancing crop growth and yield.

Key-Words / Index Term :
Zinc Fertilization, Application methods, Growth stages, Maximum productivity

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