Abstract:
A field experiment was conducted at Horticultural research field of Sher-e-Bangla
Agricultural University, Dhaka during the period from December, 2020 to March
2021 in Rabi season to study the growth and yield of carrot as influenced by
macronutrients and harvesting time. The experiment consisted of two factors, and
followed Randomized Complete Block Design (RCBD) with three replications. Factor
A: Different levels of macronutrients (4) e.i. F
ii
0
= Control, F
1
= N
160
P
F
2
= N
185
P
70
K
140
S
40
kg ha
-1,
F
3
= N
210
P
90
K
160
S
50
kg ha
-1
50
and Factor B: A Harvesting
time (3) e.i. H
1
= 90 days after sowing, H
2
= 100 days after sowing and H
= 110 days
after sowing. Experimental results revealed that different levels of macronutrients and
harvesting time significantly influenced the growth and yield of carrot. In case of
different levels of macronutrients application the highest brix percentage of carrot
root (7.77 %), marketable root yield per plot (6.13 kg) and marketable root yield per
hectare (25.56 t) of carrot were observed in F
2
treatment (N
185
P
70
K
).
Among different time of harvesting, the highest brix percentage of carrot root (7.20
%), marketable root yield per plot (6.10 kg) and marketable root yield per hectare
(25.42 t) of carrot were observed in H
(harvesting at 100 days after sowing)
treatment. In case of combination treatment the highest brix percentage of carrot root
(8.20 %), marketable root yield per plot of carrot (6.40 kg) and marketable root yield
of carrots per hectare (26.67 t) were observed in the F
2
2
H
treatment combination
comparable to others treatment combinations. Therefore, it was suggested that
cultivation of carrot through application of fertilizer @ N
185
P
2
70
K
140
S
) and
harvesting at 100 days after sowing (H
2
40
), appeared to be best for achieving higher
growth, yield and quality root of carrot.
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
