Abstract:
An experiment was carried out at the Agronomy field laboratory, Sher-e-Bangla
Agricultural University, Dhaka during the period from August to December, 2014 to
find out the growth and yield of blackgram as affected by weeding frequency under
mikania vine application. The experiment comprised two factors viz. (i) four weeding
frequency (W
0
= No weeding, Control), W
1
= Before critical period (3 DAS), W
2
= At
critical period (6 DAS) and W
3
= After critical period (9 DAS) and (ii) four mikania
vine application (M
0
= No Mikania vine, Control), M
1
= Mikania vine 2% of soil
weight, M
2
= Mikania vine 4% of soil weight and M
3
= Mikania vine 6% of soil
weight). The results revealed that interaction of W
0
M
0
gave the greatest number
(469.0) of weeds plot
-1
and (81.99 g) weed dry weight plot
-1
. The highest seed yield
(1.43 t ha
-1
) was recorded form W
1
M
3
and the minimum (0.81 t ha
) was recorded
from the interaction of W
0
M
0
. The maximum yield as shown by the W
1
might be
attributed to higher pods plant
-1
(19.00), seed pod
-1
(6.82) and 1000-seeds weight
(47.67 g) which were also shown by this combination.
-1
M
3
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
SEMESTER: JANUARY-JUNE, 2015
