Abstract:
An experiment was conducted at the farm of Sher-e-Bangla Agricultural
University, Dhaka during the period from November 2019 to February 2020.
The experiment consisted of two factors, Factor A: four different mulch
materials, M
0
: No mulching, M
1
: Water hyacinth, M
2
: Saw dust and M
3
: Straw
and Factor B: four different levels of potassium, K
0
: No potassium, K
1
: 75 kg
k/ha, K
2
: 85 kg k/ha and K
3
: 95 kg k/ha, respectively. The experiment was laid
out in Randomized Complete Block Design (RCBD) with three replications.
Mulching and potassium influenced significantly all the studied parameters. In
case of mulching the maximum plant height (45.89 cm) root length (15.85 cm),
root diameter (5.02 cm), marketable root yield (31.07 t/ha) were recorded from
M
1
treatment. In case of potassium, the maximum plant height (46.46 cm), root
length (16.01 cm), root diameter (6.80 cm), marketable root yield (30.04 t/ha)
were found in K
2
treatment. Due to combined effect of the highest marketable
root yield (35.60 t/ha) was obtained from M
1
K
2
and the lowest (21.69 t/ha) was
from M
0
K
0
(control). The highest BCR (2.18) was obtained from the treatment
combination of M
1
K
2
where the lowest BCR (1.71) was from M
0
. So, it can
be concluded that K
2
(85 kg k/ha) with M
1
(water hyacinth) was the best for
carrot cultivation.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
In partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
HORTICULTURE
