Abstract:
A field experiment was carried out at Agronomy Field of Sher-e-Bangla
Agricultural University, Dhaka during the period from December 2007 to May
200810 study the growth and yield
olfloro
rice BRRI dhan29 as iniluenced by
N application and seedling types. The experiment was conducted with two
levels of treatments viz. A. N application No nitrogen (control) (N
0
). 2 splits
at
'/2
at active tillering stage + ½ at paniele initiation stage (N
1
). 3 splits at 1/3
at 15 DAT
1
1/3 at active tillering stage ± 1/3 at panicle initiation stage (N
2 ). 3
splits at 1/3 at 15 DAT + 1/3 at active tillering stage + 1/3 at paniele initiation
stage- additional IC) kg
N
ha" at flowering stage (N3
) and Urea Super Granules
(N.1
) and B. Seedling types: normal seedling as produced using farmers'
practices (Si
). seedling produced following I3RRI recommendation
(52)
and
robust seedling from modified mat nursery (53
). The experiment was laid out in
split-plot design with 3 replications. Experimental result showed that N
application had significant effect on the studied parameters like plant height,
number of tillers hilr', dry matter weight plant", number of effective tillers
hill", number of non-effective tillers huE', total grains panicle", filled grains
paniele", unfilled grains panicle". 1000-grains weight. grain yield, biological
yield and harvest index. The highest grain yield (7.27 t ha") was obtained from
the Urca Super Granules (N
4
) and control (N0)
gave the lowest grain yield (3.02
I
ha"). Seedling types also significantly influenced all the growth and yield
attributes. The highest grain yield (6.27 t ha") was obtained from robust
seedling from modified mat nursery and the lowest grain yield (5.10 t ha") was
recorded from normal seedling as produced using farmers' practices (S
i
). The
combined effect
oIN
application and seedling types had also significant effect
on growth. yield attributes and yield. The interaction of Super Granule Urea
N4
) with robust seedling from modified mat nursery (5
3)
gave the highest
grain yield (7.84 t ha").
