GROWTH AND YIELD RESPONSE OF MUNGBEAN TO THE APPLICATION OF PRILLED AND SUPER GRANULE UREA

Abstract

The experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh during the period from September to December 2012 to study the growth and yield response of mungbean to the application of prilled and super granule urea. The variety BARI mung-6 was used as the test crop. The experiment consists of the following treatments- T1 = Prilled urea (PU) broadcast, T2 = PU given in furrows, T3 = PU given between two rows, T4 = PU and seeds given in same furrows, T5 = USG placed at 10 cm depth at 10 cm distance (avoid one row), T6 = USG placed at 10 cm depth at 10 cm distance (avoid two rows), T7 = USG placed at 10 cm depth at 10 cm distance (avoid three rows), T8 = USG placed at 10 cm depth at 20 cm distance (avoid one row), T9 = USG placed at 10 cm depth at 20 cm distance (avoid two rows), T10 = USG placed at 10 cm depth at 20 cm distance (avoid three rows), T11 = USG placed at 10 cm depth at 30 cm distance (avoid one row), T12 = USG placed at 10 cm depth at 30 cm distance (avoid two rows), T13 = USG placed at 10 cm depth at 30 cm distance (avoid three rows), T14 = USG placed at 10 cm depth at 40 cm distance (avoid one row), T15 = USG placed at 10 cm depth at 40 cm distance (avoid two rows) and T16 = USG placed at 10 cm depth at 40 cm distance (avoid three rows). The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data on different growth, yield and yield contributing characters of mungbean were recorded and significant variations was observed among the studied characters. Treatment T2 (PU given in furrows) registered the maximum plant height (18.61 cm, 24.35 cm, 37.60 cm, 45.98 cm an 50.57 cm), the maximum number of leaves plant-1 (4.03, 10.20, 17.93, 20.50 and 22.57), the maximum number of branches plant-1 (1.53, 4.26, 4.57, 5.11 and 6.00) and the highest above ground dry matter plant-1 (8.55 g, 9.61 g, 10.71 g and 12.08 g) at 20, 30, 40, 50, 60 DAS and harvest, respectively. The minimum plant height (10.67 cm, 17.51 cm, 28.38 cm, 34.67 cm and 38.61 cm), the minimum number of leaves plant-1 (3.10, 6.73, 11.73, 13.03 and 14.90), the minimum number of branches plant-1 (1.13, 2.39, 2.88, 2.92 and 3.33) and the lowest above ground dry matter plant-1 (5.14 g, 6.02 g, 6.87 g and 9.40 g, respectively) were observed with from T16 (USG placed at 10 cm depth at 40 cm distance - avoid three rows) at all growth stages. The maximum yield contributing characters like pods plant-1 (25.93), pod length (7.26 cm), seeds pod-1 (9.46) and 1000-seeds weight (42.60 g) were found when crop was given prilled urea in furrow (T2). Plant showed minimum pods plant-1 (16.87), pod length (5.52 cm), seeds pod-1 (5.73) and 1000-seed weight (33.38 g) when treated with lower amount of USG (T16). The highest seed yield, stover, biological yield were notedas 1.94 t ha-1, 2.85 t ha-1 and 4.79 t ha-1 from T2, respectively, when T16 showed the minimum seed yield (1.13 t ha-1), stover yield (1.52 t ha-1) and biological yield (2.65 t ha-1).