Abstract:
The experiment was conducted at Sher-e-Bangla Agricultural University (SAU)
farm, Sher-e-Bangla Nagar, Dhaka, Bangladesh during the period of December 2007
to April 2008 to study the effect of nitrogen and sulphur on the growth. yield and
quality of
Boro rice. BRRI dhan 28 was used as the test crop in this experiment. The
experiment was laid out in randomized complete block design (RCBD). There were
twelve treatment combinations comprising of four levels of N (0, 120, 140 and 160
kg hi') designated as N
o, N1
. N, and N3
and three levels of S (0,20 and 30 kg S hi')
designated as S
0. S, and S2. There was a positive impact of each nutrient and their
interactions on yield, yield parameters and nutrient contents of boro rice BRRI dhan
28 with increasing rate of nitrogen and sulphur. In case
of individual effect of
nitrogen the maximum plant height (87.4 cm) was observed in N
2
(140 kg N hi')
treatment, and number of filled grains panicle' (102.8) and grain yield (6.9 t hi')
were recorded in N3
(160 kg hi') treatment. The straw yields were almost similar in
different levels of N except N
o
treatment. Application or
30 kg S hi' produced the
highest number of effective tillers hilF' (11.9), filled grains paniel&' (90.1). straw
yield (7.8 1 ha4
) and grain yield (6.5 t hi'). There was
no significant single effect of
S on plant height and 1000-grain weight of BRRI dhan 28. The treatment
combination of N352
(160 kg N hi' + 30 kg S ha
4) performed better than other
treatments in present trial considering number of filled grains
grain and
straw yield of Boro rice BRRI dhan 28. The uptake and concentration of N, P. K and
S in grain and straw increased with increasing levels
of
N and S. ibe post harvest
soils of N3S2 (160 kg N hi'
+ 30 kg S hi') resulted the highest total N and available
S content. From the view point of grain yield, nutrient concentration and the quality
of post harvest soils, the treatment combination of N
3S2 (160 kg N ha' + 30 kg S hi
5
was considered to be the suitable dose of fertilizer for boro rice in Deep Red
Brown Terrace soil.
Description:
A Thesis
Submitted to the Department of Soil Science
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SOIL SCIENCE
SEMESTER: JULY-DECEMBER, 2009
