Abstract:
A field experiment was conducted at the experimental field of Sher -e-
Bangla Agricultural University during July to December 2010 to evaluate
the performance of introduced rice variety NERICA-1 along with HYVs in
aman season under different levels of NPK fertilizers. The experiment was
laid out in a split-plot design with three replications. Rice varieties differed
significantly where BR11 produced higher grain yield (3.74 t ha
yield (5.39 t ha
-1
) than BRRI dhan46 (3.16 t ha
respectively) and NERICA-1 (2.33 t ha
-1
-1
and 4.33 t ha
-1
) and straw
and 4.98 t ha
-1
, respectively).
Fertilizer dose also significantly influenced all the growth and yield attributes
except 1000-grains weight. Higher fertilizer dose (140-90-90 kg ha
and K
ha
-1
2
O) increased the yield in all the varieties. The highest grain yield (3.83 t
) and straw yield (5.28 t ha
-1
-1
N, P
) were obtained from higher fertilizer dose
which was statistically at par with recommended fertilizer dose (120-80-80 kg
ha
-1
N, P
2
O
5
and K
grain yield (4.72 t ha
2
O). Interaction results showed that significantly higher
-1
) and straw yield (5.86 t ha
along with higher fertilizer dose (140-90-90 kg ha
-1
-1
) were given by BR11
N, P
2
O
5
and K
was statistically at par with the same variety along with recommended fertilizer
dose (120-80-80 kg ha
-1
N, P
2
O
5
and K
2
2
2
-1
O
O) which
O). NERICA-1 produced
comparatively lower grain yield, straw yield and harvest index which
could not improve with any one of the fertilizer dose.
,
5
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGRONOMY
SEMESTER: JANUARY- JUNE, 2010
