Author (s): M. A. Salam1, M. S. A. Sarder2, M. J. Ullah2, M. A. Kawochar3, and M. K. Islam4
Abstract
An experiment was conducted at central farm of Sher-e-Bangla Agricultural University, Dhaka during the period from April to July 2006 to study the effect of different levels of nitrogen and spacing on growth and yield of hybrid maize. Three levels of Nitrogen (180, 220 and 260 kg N ha-1) and plant spacing (60cm × 25cm, 75cm × 25cm and 90cm × 25cm) were the treatment variables in the experiment. Results showed that significantly higher number of grains cob-1 (300.33), 1000-grain weight (446.13g) and grain yield (7.354 t ha-1) was found in 75cm × 25cm spacing. Among nitrogen levels 220 kg N ha-1showed higher yield (6.20 t ha-1) and the values of yield components. Interactions of 220 kg N ha-1 with a spacing of 75cm X 25 cm produced the maximum number of grains cob-1 (331.7), 1000-grain weight (476.7g), and grain yield (8.35 t ha-1). The grain yield was positively and significantly correlated with number grains cob-1 (R 2 = 0.8037) and 1000-seed weight (R2= 0.9066).
Keywords: Maize, Spacing, Nitrogen, Growth, Yield
Full pdf: PDF
J. Expt. Biosci.1(2):57-61, July 2010
Keywords: Maize, Spacing, Nitrogen, Growth, Yield
Full pdf: PDF
J. Expt. Biosci.1(2):57-61, July 2010
