Abstract:
A field experiment was conducted at the Sher-e-Bangla Agricultural University farm,
Dhaka, Bangladesh from December 2019 to April 2020 to evaluate the effect of
phosphorus and molybdenum on growth and yield of soybean (Glycine max L.). The
experiment comprised of two factors: Factor A: Levels of phosphorous: P
0
ha
-1
, P
1
: 30 kg P
2
O
5
ha
-1
, P
2
: 60 kg P
2
O
5
ha
ii
-1
and Factor B: Levels of molybdenum:
Mo
0
: 0 kg Mo ha
-1
, Mo
1
: 1 kg Mo ha
-1
, Mo
2
: 1.5 kg Mo ha
-1
. The two factors
experiment comprised of nine treatments combination was laid out in Randomized
Complete Block Design (RCBD) with three replications. Individual application of
different levels of phosphorus and molybdenum fertilization showed significant effect
on growth and yield contributes studied. For phosphorus application, growth
parameter viz. plant height, number of leaves plant
-1
: 0 kg P
2
, number of branches plant
increased significantly up to 30 kg P
2
O
5
ha
-1
fertilization and yield parameter viz. pod
length, 100 seed weight, number of pods plant
-1
, number of seeds pod
, seed yield,
stover yield, biological yield and harvest index also significantly increased in P
1
(30
kg P
2
O
5
ha
-1
) treatment. The highest seed yield (2.44 t ha
-1
-1
) was found from P
1
(30 kg
P
2
O
5
ha
-1
) treatment and lowest yield (1.20 t ha
-1
) was obtained from P
0
(control)
treatment. In case of molybdenum, growth parameter and yield contributing
characters were also significantly increased up to Mo
2
(1.5 kg Mo ha
-1
) treatment. The
highest seed yield (2.38 t ha
-1
) was obtained from Mo
2
(1.5 kg Mo ha
) treatment and
lowest yield (1.23 t ha
-1
) was found from Mo
0
(control) treatment. Combined
application of phosphorus (30 kg P
2
O
5
ha
-1
-1
) and molybdenum (1.5 kg Mo ha
)
showed significant variation on all parameters of soybean. The combined application
of 30 kg P
2
O
5
ha
-1
and 1.5 kg Mo ha
-1
may be considered for getting higher yield of
soybean.
Description:
A Thesis
Submitted to the Faculty of Agriculture, Department of Soil Science,
Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
SOIL SCIENCE
SEMESTER: JANUARY - JUNE, 2021
