Abstract:
A field experiment was conducted at the Agronomy field, Sher-e-Bangla
Agricultural University (SAU), during July to December, 2019 with a view to
finding out improvement of yield and aromatic quality of fragrant rice through
supplementation of potassium and sulphur in Aman season. The experimental
treatments included two T. aman rice varieties viz., BRRI Dhan 80 and BRRI
Dhan 34 , three levels of potassium viz., K
ii
1
= 60 kg MoP ha
-1
, K
2
= 65 kg MoP ha
,
K
3
= 70 kg MoP ha
-1
and three levels of sulphur viz., S
1
= 45 kg Gypsum ha
=
50 kg Gypsum ha
-1
, S
3
= 55 kg Gypsum ha
-1
. The experiment was laid out in a
split-split plot design with three replications. There were 18 treatments
combinations. The total numbers of unit plots were 54. Results showed that rice
varieties differed significantly in all growth characters and BRRI Dhan 80
produced higher grain yield (4.39 t ha
gave the highest grain yield (4.30 t ha
-1
-1
).Among the review, the 65 kg MoP ha
). Increase of K level 50 kg Gypsum ha
performed well in growth and gave higher grain yield (4.35t ha
). Interaction
results showed that significantly higher grain yields were given by
transplanting BRRI Dhan 80 with 65 kg MoP ha
-1
(4.71 t ha
-1
),Combination with
the application of 50 kg Gypsum ha
-1
-1
in BRRI Dhan 80 (4.51t ha
). The
maximum grain yield (5.04 t ha
-1
) was obtained from the combination of BRRI
Dhan 80 with 65 kg MoP ha
-1
and 50 kg Gypsum ha
-1
.The higher grain yield was
attributed mainly to the number of effective tillers hill
-1
-1
-1
, filled grains panicle
and 1000-grain weight. Protein content(8.55%) and grain 2-AP content( 1.02 µg
g
-1
) was found from the combination of BRRI Dhan 80 with 65 kg MoP ha
and
50 kg Gypsum ha
-1
.
It may be concluded that the application of 65 kg MoP
ha
-1
and 50 kg Gypsum ha
-1
along with recommended dose of other fertilizers may
be use for producing good quality aromatic rice.
Description:
A Thesis
Submitted to the Institute Of Seed Technology
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfilment of the requirements
for the degree
of
MASTER OF SCIENCE(MS)
IN
SEED TECHNOLOGY
