The combined effect of organic and inorganic fertilizers on the growth and yield of T. Aman rice in the T. aman-Mustard-Boro cropping pattern

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Research Paper 10/08/2023
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The combined effect of organic and inorganic fertilizers on the growth and yield of T. Aman rice in the T. aman-Mustard-Boro cropping pattern

MF. Hossain, F. Ahmmed, M. Billah
Int. J. Agron. Agri. Res.23( 2), 34-39, August 2023.
Certificate: IJAAR 2023 [Generate Certificate]

Abstract

A study was conducted at Bina Sub-station Nalitabari, Sherpur Farm from June to October 2022 to investigate the effect of combining organic and inorganic fertilizers on rice growth and yield. It followed a randomized block design with three replications and a unit plot size of 3m×4m.The experiment consisted of five treatments: T1 100% STB (N90P15K75S12Zn2), T2 (85% CF+ 5t/ha cow dung), T3 (85% CF+ 4t/ha vermicompost), T4 (70% CF+ 5t/ha cow dung), and T5 (70% CF+ 2t/ha vermicompost). The objective was to assess their impact on the growth, yield, and yield-contributing characteristics of the BINAdhan-17 rice variety. The study found that combining inorganic fertilizer with 2t/ha of vermicompost resulted in the highest yield. Chemical fertilizer (CF) with organic sources increased yield. The tallest plants were in T1 (104.9cm), while the shortest was in T4. The highest grain yield was in T3 (5.9t/ha), and lowest in T4 (4.7t/ha).When combining 4t/ha of vermicompost with 85% CF (77kg N, 13kg P, 64kg K, 12kg S, 2kg Zn), the parameters of tillers per plant, panicle length, filled grains per panicle, 1000-grain weight, grain yield, and straw yield were maximized.Based on these findings, it can be concluded that Using high-quality rice varieties and incorporating compost, alone or with chemical fertilizers, increases yields compared to full inorganic fertilizer. The study emphasizes the importance of judicious organic and chemical fertilizer application for significantly enhancing rice yields.

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