ELECTION OF ORGANIC FERTILIZERS RESPONSIVE TRANSPLANTED AROMATIC AMAN RICE CULTIVARS

Abstract

A pot experiment was conducted during the period from June to December 2021 in Aman season at Sher-e-Bangla Agricultural University, Dhaka to investigate the effect of the different organic fertilizer on the growth and yield of transplanted aromatic aman rice varieties.The experiment was laid out in Completely Random Design (CRD) with 2 factor and four replications. Factor A: Different rice varieties (7) viz: V : Chinigura, V 3 : Gobindobhog, V 4 : Kataribhog, V 5 : Tulshimala, V 6 1 : Kaloshila, V : Kalijira, V : BRRI dhan34 and Factor B: Application of different organic manures (3) viz: T : 150 g CD pot -1 , T 2 : 150 g VC pot -1 and T 3 : 30 g MOC pot -1 . For the purpose of evaluating the experiment's outcomes, data on various parameters were evaluated. Experimental result revealed that in comparison to other rice varieties, BRRI dhan34 (V ) rice variety performed best in different organic fertilizer treatments and recorded the highest average plant height (121.08 cm), effective tiller number hill -1 7 (10.00), grain weight pot (17.81 g) and straw weight pot -1 (37.40 g) comparable to other varieties. Different organic manure application influenced the growth and yield attributes of transplanted aromatic aman rice varieties, and the highest average plant height (120.39 cm), effective tiller number hill -1 of rice (9.36), grain weight pot -1 1 of rice (20.58 g) and straw weight pot of rice (44.92 g) were obtained in 150 g vermicompost treated pot (T ). In case of combination, the highest average plant height (128.50 cm), effective tiller number hill

(14.25), grain weight pot -1 (24.56 g) and straw weight pot -1 of rice (54.60 g) were observed in V 7 T combination treatment. Therefore, cultivating BRRI dhan34 in combination with the application of 150 g VC pot 2 -1 for rice production resulted in a higher grain weight than the other organic treatments and was suitable for organic rice production comparable to other treatment combination.