M. A. Uddin, M.H. Ali, P.K. Biswas, S.M. Masum* and M. S. H. Mandal
Abstract
An experiment was conducted at Agricultural farm of Sher-e-Bangla Agricultural University, Dhaka, during December 2007 to May 2008, in Boro season to study the influence of nitrogen and plant spacing on yield of boro (winter) rice. There were three doses of nitrogen (150, 200 and 250 kg ha-1) and four plant spacing’s (25cm × 10cm, 25cm × 15cm and 25cm × 20cm and 25 cm × 25 cm). Results revealed that panicle length, 1000-grain weight, grain yield and harvest index were not responsive to higher rate of nitrogen application and maximum plant spacing. But with the application of 200 kg N ha-1 with plant spacing of 25cm×15cm gave the highest grain yield (7.58 t ha-1), 1000-grain weight (26.21g) and harvest index (45.57%).
Key words: Boro rice, nitrogen, plant spacing, yield, BRRI dhan29
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