Abstract:
The experiment was conducted at Horticultural Farm, Sher-e-Bangla
Agricultural University, Dhaka, Bangladesh during the period from
October 2018 to February 2019 to study the application of nutrient sources
interaction with NAA (Naphthalene acetic acid) for investigating the
growth and yield of purple cabbage. The experiment was consisted of two
factors. Factor A: nutrient sources; vermicompost, and NPK doses. Factor
B: four levels of NAA; N
0
: 0 ppm, N
1
ii
: 20 ppm, N
2
: 40 ppm and N
3
: 80
ppm were used for the present study. The experiment was carried out in
RCBD with three replications. From the study, the highest yield of purple
cabbage (27.38 t/ha) was found from the mixture of vermicompost and
NPK treatment and the lowest yield (16.05 t/ha) was found from the
control treatment. For different levels of NAA, the highest yield of purple
cabbage (25.39 t/ha) was found from N
2
(40 ppm) treatment and the lowest
yield (15.41 t/ha) was found from N
0
(control) treatment. In the case of
combined effect, the highest yield of purple cabbage (36.80 t/ha) was
obtained from F
3
N
2
(½ vermicompost and ½ NPK doses + 40 ppm NAA)
treatment combination and the lowest yield (14.64 t/ha) was found from
F
0
N
0
(control) treatment combination. Combine mixture of vermicompost,
NPK doses, and NAA appeared to be the best for the cultivation of purple
cabbage under the Sher-e-Bangla Agricultural University Farm
condition.
