Abstract:
The experiment was carried out at the Horticulture Farm of Sher -e-Bangla Agricultural
University, Dhaka, Bangladesh during the period from October 2021 to March 2022. The
experiment consisted of two factors. Factor A: Three seaweed treatment viz. S
0
(control;
water), S
1
(seaweed extract 2 ml/L) and S
2
(seaweed extract 4 ml/L) and Factor B: Four
phosphorus treatment viz. P
0
(control; 100% P), P
1
(90% P), P
2
(80% P) and P
3
(70% P).
The experiment was laid out in Randomized Complete Block Design with three
replications. Regarding combined effect of seaweed and inorganic fertilizer application,
most of the studied parameters including growth, yield and yield contributing parameters
were significantly influenced. In case of different levels of seaweed the highest (37.73 t
ha
-1
) was found from the treatment S
2
(seaweed extract 4 ml/L) followed by S
1
(seaweed
extract 2 ml/L) whereas the lowest marketable cabbage yield (36.82 t ha
) was obtained
from the treatment S
0
(control; water). For different levels of phosphorus the highest
marketable cabbage yield (39.38 t ha
-1
) was observed from the treatment P
2
(80% P)
followed by P
1
(90% P) whereas the lowest marketable cabbage yield (31.44 t ha
) was
achieved from the treatment P
3
(70% P). For the combined effect the highest yield of
cabbage (42.20 t ha
-1
) was obtained from S
2
P
2
followed by S
1
P
1
and the lowest result
(30.73 t ha
-1
) was found from the treatment combination of S
0
P
3
. In terms of economic
analysis, the highest gross return (Tk. 506400.00), net return (Tk. 273700.00) and BCR
(2.18) was obtained from S
2
P
2
followed by S
1
P
1
whereas the lowest gross return (Tk.
368760.00), net return (Tk. 140838.00) and BCR (1.62) was obtained from S
0
. So, it
can be summarized that S
2
P
2
has
given the maximum output in terms of benefit cost ratio
(BCR) and this treatment combination was considered as the best compared to other
treatment combinations.
Description:
A Thesis
Submitted to Department of Entomology,
Faculty of Agriculture.
Sher-e-Bangla Agricultural University,
Dhaka-
In partial fulfillment of the requirements for the degree of
MASTERS OF SCIENCE (MS)
IN
DEPARTMENT OF HORTICULTURE
