Abstract:
n expcnmcnt was conducted at the Horticulture Farm of Sher-e-Bangla
Agricultural University, Dhaka during the period from August to October 2006 to
study the effect of different levels of nitrogen viz. control (N0), 50 kg N per
hectare (N1), 75 kg N per hectare (N2), and 100 kg N per hectare (N3) as well as
different levels of P205 viz. control (Po), 65 kg P20s per hectare (P1), 75 kg P20s
per hectare (P2) and 85 kg P20s per hectare (P3) on the growth and yield of
Gimakalmi. The experiment was conducted in the Randomized Complete Block
Design (RCBD) with three replications. Application of different levels of nitrogen
significantly influence the growth and yield of Gimakalmi. The maximum
(20.00g) fresh weight of leaves per plant was obtained from 100 kg N per hectare
while the minimum (18.66g) was found from control treatment at 60 DAS. The
highest (8.27g) dry weight of leaves per plant was observed in N3 and the
minimum (6.90g) was recorded from control treatment. The maximum (20.25g)
fresh weight of leaves per plant was obtained from P3 treatment and minimum
(18.00 g) fresh weight per plant was obtained from Po treatment.
The combined effect of various levels of nitrogen and P205 were also found
significant. The highest yield (62.66 t/ha) was obtained from the treatment
combination N3P3 while the lowest yield (55.00t/ha) was obtained from the control
treatment. The benefit cost ratio (BCR) was maximum (3 .00) in the treatment
combination of N3P3 whereas the minimum (2.13) was recorded from the control
treatment (NoPo).
