GROWTH AND YIELD OF SOYBEAN AS INFLUENCED BY ADDED UREA AND BORON FOLIAR FERTILIZATION
Date
2017
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
An experiment was carried out at the Agronomy research field, Sher–e- Bangla
Agricultural University, Dhaka, during the period from 21 December, 2016 to 6 April,
2017 to investigate the effect of urea and boron application as foliar spray on growth and
yield of soybean. The experiment conducted with two soybean varieties viz. V
= BARI
soybean 5 and V
2
= BARI soybean 6 and five fertilizer application viz. T
=
Recommended fertilizer (RF), T
= RF + Foliar spray (FS) of water at flower initiation
(FI), T
3
2
= RF + Urea (2%) FS at FI, T
ii
4
= RF + Boron (1%) FS at FI, T
= RF + Urea
(2%) + Boron (1%) FS at FI. The experiment was laid out in split-plot design with three
replications. Variety and fertilizer application were assigned in main and sub plots,
respectively. Results showed that BARI Soybean-6 gave maximum dry weight plant
(11.55 g), pods plant
-1
(57.47), pod length (3.74 cm), seeds pod
-1
(2.87), 100- seed weight
(13.41 g) and seed yield (2.13 t ha
-1
). The highest dry weight plant
-1
1
(59.67), pod length (3.80 cm), seeds pod
-1
5
1
(12.18 g), pods plant
(2.89), 100 seed weight (13.45 g) and seed
yield (2.17 t ha
-1
) were obtained from treatment T
i. e, (RF+ Urea (2%) + Boron (1%) FS
at FI. The highest dry weight plant
-1
5
(12.86 g), pods plant
-1
(63.67), pod length (3.91 cm),
seeds pod
-1
(3.05), and100- seed weight (14.03 g) was recorded from the treatment
combination of V
2
T
. The highest yield was also produced by the treatment combination
V
2
T
5
(2.33 t ha
-1
5
) as it was statistically identical with V
2
T
2
(2.05 t ha
-1
), V
)
and V
2
T
4
(2.12 t ha
-1
) treatment combinations. Inclusion of urea (2%) + boron (1%) or
urea (2%) or boron (1%) singly along with recommended fertilizer was efficient in
improving yield by 27-44% over RF irrespective of varieties. The results revealed that
BARI soybean 6 along with foliar treatment either T
(RF+ Urea (2%) + Boron (1%) FS
at FI) or T
3
(RF + Urea (2%) FS at FI) or T
4
5
(RF + Boron (1%) FS at FI) may be noted as
better management for increased yield of Soybean.
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
Keywords
SOYBEAN AS INFLUENCED, ADDED UREA AND BORON, FOLIAR FERTILIZATION