EFFECT OF NITROGEN AND BORON ON GROWTH AND YIELD OF BARI Tomato-18

Abstract

The experiment was carried out at the Farm of Sher-e-Bangla Agricultural University, Dhaka-1207 to find out the effect of nitrogen and boron on growth and yield of BARI Tomato-18 during the period of November 2019 to March 2020.The experiment comprised with four level of nitrogen viz. 0, 80, 120, 160 kg/ha., and three levels of boron viz. 0, 1.0, 1.5 kg/ha. The two factor experiment was set-up in Randomized Complete Block Design (RCBD) with three replications. In total, there were 12 treatment combinations in this study. A unit plot size was (1.8 m × 1.25 m i.e. 2.25 m ) and the treatment were distributed randomly in each block. Data on growth and yield parameters were recorded and analyzed statistically. Results showed that individual and combined effects of nitrogen (N) and boron (B) were significant in variation of all growth and yield contributing characters. The highest plant height (137.67 cm), number of flower clusters per plant (14.33), flowers per cluster (15.33), fruits per cluster (13.0), fruits per plant (68.66), minimum required date for flowering (32.33 DAT), for fruiting (40.33 DAT) and for harvesting (88.33 DAT), fruit weight per plant (3.1700 kg), fruit weight per plot (18.45 kg), highest fruit yield (79.5 t/ha), highest fruit length (76.00 mm) and highest fruit diameter (44.333 mm) were recorded from the application of N 120 B 1.0 treatment. On the other hand, the lowest yield of fruit (34.5 t/ha) and for all cases lowest result were found in control treatment. There were no significant effect on variation of N, P, K, S, pH, OC and OM concentration in post-harvest soil for the application of N and B. The maximum N content (0.086 %), P (21.33 ppm), K (0.17 meq/100 g soil) S (25.667 ppm), OC (0.72 %), OM (1.24 %) concentration were obtained at N 160 B 1.5

treatment. It can be said that the interaction of 120 kg/ha N + 1.0 kg/ha B i.e. N 120 B 1.0 treatment was best compared to others used in this experiment for growth and yield of BARI Tomato -18.