All plots expect T1 received 150 kg ha-1 N as
urea, 81 kg ha-1 of P as P and 72 kg ha-1 K as K.
Full dose of P and K was applied just before
transplanting. Nitrogen fertilizers were applied in
two split application: the first split (75 kg ha-1)
was applied at the time of finial land preparation
and second split (75 kg ha-1) was added at
panicle initiation stage. The Zn applied in this
study was in the form of as ZnSO4.H2O. All
other cultural practices were kept same and
uniform for all treatments. Plant height and
number of tillers were recorded during the growth
stage. At crop harvesting, rice plants were
manually harvested from 1 m2 area in the center
of each plot. These plants were used to
determine grain yield and its components [28]
after separating into straw and grains. Dry weight
of straw was determined after oven-drying at
70°C to constant weight. Yield components
included panicle number; spikelets per panicle,
percentage of filled grain and 1000-grain weight
were recorded.