EFFECT OF NITROGEN FERTILIZER ON MORPHOLOGY, GROWTH AND YIELD OF TOMATO

Abstract

A field experiment was carried out to study effect of nitrogen fertilizer on morphology, growth and yield of tomato at the farm of Sher-e-Bangla Agricultural University , Dhaka during October 2008 to March 2009 with four varieties, viz., BARI Tomato4, BARI Tomato-5. BARI Tomato-7, BARI Tomato-9 of tomato and four levels of nitrogen viz., 0. 100, 150 and 200 kg N/ha using Randomized Complete Block Design (RCBD) with three replications. The total yield of tomato diflëred significantly due to the different varieties imposing different doses of nitrogen. The maximum yield of fruits per hectare (95.75 t/ha) was obtained from BARI Tomato-7 but the minimum yield of fruits per hectare (19.58 t/ha) was obtained from BARI Tomato-5. Different nitrogen had also significant influence on yield of tomato imposing 150 kg N/ha (N2) resulted in the highest yield (61 .421./ha) over control (41.00 t/ha). In respect of combined effect. BARI Tomato-7 with 150 kg N/ha produced the highest yield per hectare (106.3 t/ha). On the other hand the lowest yield (14.33 t/ha) obtained from the BARI Tomato-5 without nitrogen application. Considering the above findings, BARI Tomato-7 with 150 kg N/ha seems to be recommendable for tomato production.