Abstract:
An experiment was carried out at the Agronomy farm of Sher-e-Bangla
Agricultural University, Dhaka during the period from October 2015 to
December 2015 to study the yield response to nitrogen and boron applications
in soybean. Four nitrogen (N) levels (0, 15, 30 and 45 kg/ha) and four boron
(B) levels (0, 0.825, 1.65 and 2.5 kg/ha) were considered as factors for the
experiment. There were 16 treatment combinations. The experiment was laid
out in a split plot design with three replications. Data were collected on
different growth, yield and yield contributing parameters of soybean. Results
revealed that 30 kg N/ha and 1.65 kg B/ha as an individual effect and also in
combinations, gave the best yield responses in soybean. Individually 30 kg
N/ha gave the highest pod length (3.56 cm), number of seed/pod (2.73), 1000
seed weight (109.58 g), seed yield (1249.17 kg/ha), stover yield (1661.17
kg/ha) and harvest index (45.43%) and 1.65 kg B/ha gave the highest pod
length (3.46 cm), number of seed/pod (2.67), 1000 seed weight (100.25 g), seed
yield (1116.67 kg/ha), stover yield (1508.25 kg/ha) and harvest index
(42.70%). Combination of 30 kg N/ha with 1.65 kg B/ha gave the highest
number of pods/plant (48.13), pod length (3.68 cm), number of seeds/pod
(2.87), 1000 seed weight (120.10 g), seed yield (1453.33 kg/ha), stover yield
(1768 kg/ha) and the highest harvest index (45.23%) where control treatment
showed lowest performance.
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 (MS)
IN
AGRONOMY
