EFFECT OF NITROGEN AND ZINC ON GROWTH AND YIELD OF TOMATO

Abstract

A field experiment was conducted at the Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka during the period from October, 2015 to March, 2016 to study the effect of nitrogen and zinc on growth and yield of tomato. The treatments of the experiment consisted of four levels of nitrogen, viz. N 0 : Control, N 1 : 100 kg N ha : 120 kg N ha -1 , N 3 : 140 kg N ha -1 and three levels of zinc, viz. Zn 0 : Control, Zn : 1 kg Zn ha -1 , Zn 2 : 2 kg Zn ha -1 . The experiment was laid out in Randomized Complete Block Design with three replications. Due to the nitrogen application, the highest plant height (80.88 cm), number of leaves per plant (73.22), flower clusters per plant (10.93), fruits per cluster (6.48), Vitamin C (13.94 mg per 100g), fruit yield per hectare (66.15 ton) were recorded from N treatment. In case of zinc application, the highest plant height (90.50 cm), leaves number per plant (76.16), flower clusters per plant (10.93), fruits per cluster (6.18), Vitamin C (14.84 mg per 100g), fruit yield per hectare (65.82 ton) were recorded from the Zn 2 2 treatment while the minimum is obtained from control treatment. In case of combined effect, N 2 Zn gave the highest plant height (99.00 cm), leaves number per plant (88.66), flower clusters per plant (14.93), fruits per cluster (7.93), Vitamin C (16.55 mg per 100g), fruit yield per hectare (76.68 ton), while the minimum yield per hectare (37.55 ton) was obtained from N 2 0 Zn treatment. From this study it can be concluded that, N 2 Zn 2 0 treatment combination is suitable for higher yield of tomato.