Abstract:
An experiment was conducted at the Research Farm, Sher-e-Bangla Agricultural University,
Dhaka during the period from November 2019 to May 2020 in boro season to find out the
efficacy of di-ammonium phosphate (DAP) fertilizer for the growth and yield of BRRI
dhan89 as boro rice. The experiment consisted of nine treatments viz.T
1
(No fertilizer;
Control), T
2
P
20(from DAP)
K
70
S
15
Zn
1.5
kg/ha), T
8
(Recommended Fertilizer Dose, N
140
K
70
S
15
Zn
1.5
kg/ha), T
6
(N
180
kg/ha), T
4
(N
140
P
10(from TSP)
(N
100
P
15(from TSP)
K
70
S
15
Zn
1.5
P
20(from TSP)
K
70
S
15
P
20 (from TSP)
Zn
1.5
K
70
kg/ha) and T
9
S
15
K
70
Zn
1.5
kg/ha), T
7
(N
180
S
15
Zn
1.5
kg/ha), T
5
(N
140
kg/ha), T
3
(N
100
P
15(from DAP)
P
10(from DAP)
K
70
BRRI dhan89 was used as a test crop for the experiment. The experiment was laid out
following Randomized Complete Block Design (RCBD) with three replications. Results
showed that longest plant (108.92 cm), the highest number of effective tillers hill
(13.54), the
maximum number of filled grains panicle
-1
(166.66), weight of 1000 grains (26.38 g), grain
yield (8.48 t ha
DAP)
K
70
S
15
-1
Zn
1.5
) and straw yield (10.90 t ha
-1
) were observed from treatment, T
5
S
15
kg/ha). The lowest results on the respected parameters were found from T
1
(No fertilizer; control). The highest value of the N and K content in post-harvest soil was
obtained from treatment
9
T
(N
180
P
10(from DAP)
K
70
S
15
Zn
1.5
kg/ha) and T
1
(No fertilizer; control)
treated soil showed the lowest.
(N
140
P
20 (from DAP)
K
70
S
15
Zn
1.5
-1
(N
100
Zn
1.5
kg/ha).
P
20 (from
Description:
A Thesis
Submitted to The Department of Soil Science,
Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
for the degree of
MASTERS OF SCIENCE (MS)
IN
SOIL SCIENCE
SEMESTER: JANUARY-JUNE, 2021
