Abstract:
An experiment was conducted at the Agronomy field Laboratory of Sher- e–
Bangla Agricultural University, Dhaka-1207 during the period from December,
2011 to April 2012 to study the influence of different levels of irrigation, fertilizer
dose and plant density on the growth and yield of soybean. The experiment
comprised two doses of fertilizer viz. twenty percent lower of the recommended
dose, and the recommended dose (Urea, TSP and MP @ 60, 175 and 120 kg ha
,
respectively) and two levels of irrigation viz. irrigated and no irrigated and three
types of plant density viz recommended (44 plants/m
2
), twenty percent lower and
plus twenty percent greater of the recommended density. The experiment was laid
out in split plot design with three replications. The results showed that there was
significantly higher soil moisture in the irrigated-fertilized (47.53%), irrigated
with recommended density plots (49.96%) and irrigated-fertilized plots having
higher density plots (52.8%) in comparison to the that in the non irrigated plots
(33.85%). Significantly the highest exudation rate was obtained in the irrigatedfertilized
with
the
highest
populated
plots
(0.077
g/hr)
in
comparison
to
the
lowest
of
non irrigated-fertilized recommended density plots (0.02 g/hr). Irrigatedfertilized
plots
having
lower
to
recommended
density
showed
highest
plant
height
(37
cm),
leaf
area
(147
cm
2
/plant), dry weight (6-8 g/plant) and no. of pods/plant
(8-10). Significantly the highest seed yield of 1.00-1.04 t/ha were obtained in
irrigated-fertilized plots having recommended or higher density.
-1
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
IN
AGRONOMY
SEMESTER: JANUARY- JUNE, 2012
