GROWTH AND YIELD OF PURPLE CABBAGE INFLUENCED BY NUTRIENT SOURCES AND NAA

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.