An experiment was done at the horticulture farm, Dept. of Horticulture, Bangladesh Agricultural University (BAU), Mymensingh, to evaluate broccoli's growth and yield performance by applying organic and inorganic fertilizers and uses of various plant spacing. Two factor experiments were conducted on four (4) levels of organic and inorganic fertilizers viz., F1 (Control, no manure and fertilizer), F2 (Cowdung 20 t/ha), F3 (Urea 228 t/ha + TSP 180 kg/ha + MoP 120 kg/ha) and F4 (F2 50% + F3 50%) and three plant spacings viz., S1 (60 cm x 50 cm), S2 (50 cm x 50 cm) and S3 (50 cm x 40 cm); in the Randomized Complete Block Design (RCBD) with three replications and all the parameters studied were significantly influenced. All the parameters studied were found significant. Application of F2 (50%) + F3 (50%) per hectare showed the best performance on different growth parameters like plant height, the number of leaves, crown spread, minimum days taken to curd initiation, and broccoli yielded the most (16.12 t/ha). The best growth and maximum yield ((15.50 t/ ha) of broccoli was acquired by the spacing of S3 (50 cm x 40 cm). The plant height (60.45 cm), crown spread (62.45 cm), number of leaves per plant (11.60), minimum days taken to curd initiation (51.49) and yield per plant (437.83 g) were gained maximum from the treatment combination of F4S1 and the lowest were recorded from F1S3 (no manure and fertilizer with the closest spacing 50 cm x 40 cm). F4S3 treatment produced maximum gross yield per plot (11.56 kg) and yield per hectare (19.26 t/ha) but F1S1 treatment produced minimum yield per plot (5.72 kg) and yield per hectare (9.53 t/ha). The results suggest that treatments of F4 (F2 50% + F3 50%) and the closest spacing S3 (50 cm x 40 cm spacing), produce the most broccoli. The best results for all evaluated parameters were obtained using a combination of organic and inorganic fertilizers, with closet spacing producing the highest broccoli yield.
Keywords: Organic, Inorganic fertilizers, Spacing, Influence, Growth, Yield, Broccoli