Abstract:
A field experiment was conducted at the experimental field of Sher-e-iIangla agricultural
university during July to December 2007 to find out the effect of four levels of seedling
hill4 vii;
I. 13 and 4 and two forms of nitrogen fertilizer-prilled urea (PU) and urea
supergranules (USC) on growth, yield and yield components of modem (BRRI Dhan 44)
and traditional (Nizershail) transplant oman
rice. The experiment was laid out in a split-
split-plot design with three replications. Urea was top dressed 58 kg N haS ' in three
equal splits at 10, 30 and 50 DAT. The USC (1.8 g) was placed at 5-10cm soil depth
at 10 DAT in the center of four hills in alternate rows
1 granule in one spot to
supply 58 kg N haS
'. Results showed that rice varieties differed significantly in all
growth characters and BRRI Dhan 44 produced higher grain yield (4.85 t ha'). Two
seedlings hill' gave the highest grain yield (3.96 t hi') while four seedlings hill' had
the highest numbers of total tiller hill', leaf area index and total dry matter. USC
performed well in growth and gave higher grain yield (12.2%) over PU. Interaction
results showed that significantly higher grain yields were given by transplanting one
seedling of 13RRl Dhan 44 (5.38 t hi'), application of USC in I3RRI Dhan 44 (5.08 t
hi') and transplanting one seedling hilr' with application USC (4.18 t had) and
finally placement of USC by transplanting one seedling hill' of BRRI Dhan 44 (5.77
hi'). The higher grain yield was attributed mainly to the number of effective tillers
bill', filled grains panicle' and 1000-grain weight.
