Abstract:
The experiment was conducted in the reid of Sher-e-Bangla Agricultural
University, Dhaka, Bangladesh during the period from October 2007 to
February 2008. The experiment considered with two Factors, Factor A: Four
types of mulching;
M0:
No mulching (control): NI : Dry water hyacuith: M2:
Black polythenc and M
3
: Dry rice straw: Factor B: Four types of organic
manure: OM
0
: No organic manure (Control); OM : Cov:dung (20 iIha); 0M
2:
Poultry manure (10 tIha); 0M
3
: Vermicompost (10 L'ha). The two thctor
experiment was laid out in Randomized Complete Block Design (RCBD)
with three replications. In case oL mulching, the highest result
(43.67
t/ha)
was (mind from M
3
and lowest (36.21 t/ha) from control. In case of organic
manure, the highest result (45.25 t!ha) was found from 0M
3
and lowest
(34.38 i/ha) from control. For combined etlèct the highest result (50.00 t/ha)
was found from M-,0M3 and the lowest (32.47 t/ha) from M
00M0.lhe
highest henelit cost ratio (3.37) was recorded from M
1 0M2
and the lowest
benefit cost ratio
(2.39)
was recorded from M70M
0
. So, dry water hyacinth
with poultry manure was more effective for growth and yield of leauce.
