Abstract:
The experiment was conducted during the period from 14 January. 2014 to 8 May
2014 to study the influence of supplementary agronomic management on growth
and yield of soybean. The experiment was carried out by two soybean varieties as
V1
: BARI Soybean 5
and V
2
: BARI Soybean 6 and six supplementary
managements as M
;
: Control i.e. Normal cultivation; M
2: Urea spray at flowering;
M3
: MoP spray at flowering; M
4: DAP spray at flowering. M
5: Cytokinin spray at
flowering and M
e
,: Water stress at flowering of soybean. The experiment was laid
out in split-plot design with three replications. Data on different growth
parameters. yield attributes and yield were significantly varied for different
parameters. The highest dry weight (17.14g
plant
d) and higher pod remaining
(36.35
%) was found from the variety BARI Soybean 6 whereas 1000-seed weight
(100.41g) and seed yield
(1.15
t hi') in BARI Soybean
5.
The supplemental
application of DAI (M
4
) at flowering stage resulted higher dry weight plant
(l8.19g) and seeds pod' (2.42). The highest seed yield was given by supplemental
urea spray (1.21 t ha) that similar to DAP application (1.18 t ha'). The highest
flower and pod droppings (72.77%) were revealed in V
1M6
(BARI Soybean 5)
with water stress in reproductive phase). Supplemental application of cytokinin
and MoP gave the lowest total dropping
(59.56%
and 60.16% respectively). The
BARI Soybean 5
with application of DAP at flowering resulted the highest seed
yield (1.48 t hi') and stover yield (1.26 t hi'). The lowest seed yield (0.79 t hi')
was found in the variety BARI Soybean 6 with water stress during reproductive
phase.
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
