Enhanced Growth and Yield in Boro Rice through Optimized Biochar Application Rates

Md. Habibullah Siddiki¹ , Bondhon Chakraborty² , Md. Mamunur Rashid³

1. Dept. of Soil Science, Habiganj Agricultural University, Habiganj 3300, Bangladesh.
2. Dept. of Crop Botany, Habiganj Agricultural University, Habiganj 3300, Bangladesh.
3. Dept. of Agricultural Chemistry, Habiganj Agricultural University, Habiganj 3300, Bangladesh.

Section:Research Paper, Product Type: Journal-Paper
Vol.10 , Issue.11 , pp.99-107, Nov-2024

Online published on Nov 30, 2024

Copyright © Md. Habibullah Siddiki, Bondhon Chakraborty, Md. Mamunur Rashid . 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 research was conducted from December 2022 to June 2023 to investigate the growth and yield performance of two boro rice varieties under various biochar application rates, aiming to determine the optimum rate. This comprehensive study utilized two rice varieties: BRRI dhan86 (V1) and BRRI dhan96 (V2). Five treatments of biochar were applied: T1 (Biochar 10 t ha?¹), T2 (Biochar 8 t ha?¹), T3 (Biochar 6 t ha?¹), T4 (Biochar 4 t ha?¹), and T5 (Biochar 2 t ha?¹). The experiment used a Randomized Complete Block Design (RCBD) with five replications. Results showed significant improvements in all parameters with increasing biochar application, particularly at the highest rates (T4, T5). Both varieties exhibited enhanced growth and yield, with BRRI dhan96 (V2) outperforming BRRI dhan86 (V1) across most traits. The highest grain yield was observed in V2 with 7.75 t ha?¹ at T5, representing a 30.3% increase compared to the T1. The study found that biochar application improves soil structure, nutrient retention, and water-holding capacity, contributing to better plant performance. Thus, T4 and T5 can be considered an optimal rate for enhancing rice productivity under the tested conditions as they do not differ significantly. These findings support biochar as a sustainable soil amendment for improving crop yield and suggest that further research is needed to explore its long-term impacts and cost-effectiveness across different soil types and climatic conditions.

Key-Words / Index Term :
Biochar application, Rice yield enhancement, Sustainable agriculture, Soil improvement, Optimal treatment rates, Organic Farming

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