EFFECT OF ORGANIC NUTRIENT SOURCES ON THE GROWTH AND YIELD OF KOHLRABI (Brassica oleracea var. gongylodes)

Abstract

The present study was undertaken with an aim to investigate the “Effect of organic nutrient sources on growth and yield of kohlrabi plants”. The experiment was conducted during the period from November 2020 to February 2021 at Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka. The experiment was laid out in Complete Randomized Design (CRD). The experiment consisted of nine treatments viz., N 0 : Cowdung (10 t/ha), N 2 : Vermicompost (4 t/ha), N 3 : Vermicompost (4 t/ha) (50%) + Biochar (4 t/ha) (50%), N 4 : Control, N 1 : Vermicompost (4 t/ha) (70%) + Biochar (4 t/ha) (30%), N 5 : Kitchen compost (5 t/ha) (50%) + Vermicompost (4 t/ha) (20%) + Trichoderma (5 t/ha) (30%), N 6 : Mushroom Compost (5 t/ha) (50%) + Trichoderma (5 t/ha) (50%), N 7 : Kitchen compost (5 t/ha), N 8 : Mushroom Compost (5 t/ha). Total numbers of unit plots were twenty seven. The unit plot size was 1.2 m x 0.9 m. The results indicate that plant height, number of leaf, leaf length, leaf breadth and yield were influenced significantly among the treatments. With application of organic nutrient sources the maximum yield per plot was obtained from N 5 treatment (3.86 kg) while the minimum yield per plot (2.26 kg) was obtained from the control treatment N 0 and likewise maximum yield per hectare (35.77 t) was observed in treatment (N 5 ) while the minimum yield per hectare (20.95 t) was obtained from the control treatment (N 0 ). Therefore, it can be concluded that applying N 5 treatment was best for kohlrabi production.