Abstract:
A field experiment was conducted at the research farm of Sher-e-Bangla Agricultural University, Dhaka, during -,
November 2006 to March 2007 to study the effects of nitrogen and boron on growth and yield of tomato. The
experiment was laid out in a Randomized Complete Block Design (ReBD) with three replications. The unit plot
size was 3.96 m2 (2.2 m x 1.8 m). There were 12 treatments combinations in the experiment comprising 4 levels
ofN (0,60,120 and 180 kg/ha designated as Nn, Nso, NI20 and NIMlhrespectively) and 3 levels ofB (0, 0.4 and
0.6 kg/ha designated as Bn, Bo,. and Bn,iI,respectively), The individual and combined effects of nitrogen (N) and
boron (B) on growth, yield of tomato were studied. With increasing the levels of N, all the yield contributing
characters and yield of tomato increased up to the 120 kg N/ha. Application of N @ 120 kg/ha gave the highest
plant height (122.46 em), flower clusters per plant (9.67), flowers per cluster (10.44), fruits per cluster (5,76),
fruits per plant (52.44);fruit weight per plant (1.60 kg), fruit weight per plot (19.14 kg) and fruit yield (48.33
t/ha). Application of B @ 0,6 kg/ha also gave the highest values of all these parameters. In interaction, N @ 120
kg/ha along with B @ 0,6 kg/ha produced the highest plant height (142,2 em), flower clusters per plant (12.67),
flowers per cluster (11,67), fruits per cluster (6,33), fruits per plant (67.33), fruit weight per plant (1.95 kg), fruit
weight per plot (23,20 kg) and fruit yield (58.59 t/ha).
