EFFECT OF DIFFERENT LEVEL OF FERTILIZER COMBINATION AND SPACING ON THE YIELD OF WHITE MAIZE

Abstract

The experiment was conducted at the research farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh during Kharif-2 season from June 2016 to October 2016 to study the effect of different level of fertilizer combination and spacing on the yield of white maize. The experiment comprised of two factors, Factor A: Different fertilizer doses i.e. F1 = 50% less than recommended doses of fertilizer, F2 = 25% less than recommended doses of fertilizer, F3 = Recommended doses of fertilizer, F4 =25% more than recommended doses of fertilizer, F5 = 50% more than recommended doses of fertilizer; and four level of spacing i.e. S1 =50 cm × 25cm, S2 = 60cm× 25 cm, S3 = 70 cm× 25cm, S4 = (30,70 cm) paired × 25cm. The experiment was conducted following split plot design with three replications. Result revealed that, the highest plant height was observed in F4 (268.55 cm) and S2 (263.48 cm). Number of cobs plant -1 (2.33 and 2.08), cob length (18.61 cm and 17.62 cm), cob diameter (14.28 cm and 13.51 cm), number of rows cob -1 (13.15 and 12.84), number of seeds row (32.02 and 28.96), number of seeds cob -1 (369.42 and 339.44), 1000 seeds weight (288.79 g and 276.41 g), and cob yield (8338.5 kg ha -1 -1 and 7697.2 kg ha ) were highest in F5 fertilizer and S3 spacing. The combined effect of F5 fertilizer and S3 spacing on growth and yield of white maize indicated that the positive indication of using 25% more than recommended doses of fertilizer and 70 cm× 25cm spacing.