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EFFECT OF NITROGEN AND NUMBER OF SEEDLINGS PER HILL ON THE YIELD AND YIELD COMPONENTS OF T. AMAN RICE (BRRI Dhan 33) (Pages : 61 - 65)

M. S. ISLAM, M. M. AKHTER, M. SQ. RAHMAN, M. B. BANU AND K. M. KHALEQUZZAMAN

The experiment was conducted at the Agronomy field Laboratory, Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur during the period from July to December, 2007 to investigate the effect of nitrogen (N) and number of seedlings hill -1 on the yield and yield components of transplant aman rice cv. BRRI dhan 33. Five levels of N (viz. 40, 60, 80, 100 and 120 kg ha-1 ) and four levels of seedlings hill -1 (viz. 1, 2, 3 and 4 seedlings hill -1 ) were taken as treament combination. The application of N fertilizer significantly influenced the plant height, number of tillers, effective tillers, panicle length, grains panicle-1 and grain yield. The highest grain yield 4.27 t ha-1 was recorded with the N4 (100 kg N ha-1 ). Among four levels of seedlings, three seedlings hill -1 (S3) was the best in respect of plant height, tillers hill -1 , effective tillers hill -1 , grains panicle-1 and grain yield (4.07 t ha- 1 ). The interaction effect of different doses of N and number of seedlings per hill was significant in all the parameters. The treatment combination N4S3 produced the highest 1000-grain weight followed by N1S1 and N5S1 and grain yield (4.90 t ha-1 ), on the other hand the lowest grain yield 2.60 t ha-1 was recorded from N1S3. Download


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