EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON THE GROWTH AND YIELD OF BROCCOLI (Brassica oleracea L. var. italica)

Abstract

The experiment was conducted at the Research Farm, Sher-e-Bangla Agricultural University, Dhaka during the period from October 2019 to February 2020 to find out the effect of integrated nutrient management the growth and yield of broccoli. The experiment consisted of eight treatments viz. T 1 =control, T 2 =recommended fertilizer dose (RFD), T =80% RFD + 20% RFD supplemental vermicompost (VC), T 4 II =60% RFD + 40% RFD as VC, T =50% RFD + 50% RFD as VC, T 6 =40% RFD + 60% RFD as VC, T =20% RFD + 80% RFD as VC, T 8 7 =only vermicompost. BRRI broccoli-1 was used as a test crop for the experiment. The experiment was laid out following Randomized Complete Block Design (RCBD) with three replications. Results showed that the highest plant height (44.02cm, 61.25cm and 69.71cm) of broccoli at 40, 60 DAT and at harvest, number of leaves (6.50, 12.01, 17.93 and 23.03) at 20, 40, 60 DAT and at harvest, leaf length (50.10 cm), leaf breadth (21.89 cm), stem length (28.10 cm), stem diameter (3.78 cm), the highest primary curd weight (396.82 g), numbers of secondary curds (3.87), secondary curd weight (68.58 g) and yield (15.95 t/ha) were recorded from T 3 treatment. The lowest results on the respected parameters were found from T (No fertilizer; control). The highest value of the N, P and K content in post-harvest soil was obtained from treatment T 3 and T 1 (No fertilizer; control) treated soil showed the lowest.