Abstract:
A field experiment was conducted to assess the effect of integrated
nutrient management on the growth and yield of BRRldhan29 at the research
farm of Sher-e-Bangla Agricultural University, Dhaka-1207 during Boro
season 2011-12. T
5
treatment produce the maximum grain yield of
13RRldhan29 due to the application of 100 kg N from urea along with 40 kg
N/ha from cowdung. But the effect of cowdung along with nitrogenous
fertilizer was the most pronounced than that of vermicompost or nitrogenous
fertilizer alone. Similar effects were also observed on N. P. K content and
their uptake by BRRI dhan29. The effect of 100 kg N from urea along with 40
kg N/ha from cowdung was statistically identical to treatments 140 kg N/ha
from urea, 100 kg N from urea along with 20 kg N from cowdung and 20 kg
N/ha as the source of vermicompost, 80 kg N from urea with the combiantion
of 60 kg N/ha from cowdung, 80 kg N from urea with the combinaion of 60
kg N/ha as the source of vermicompost and 80 kg N from urea with the
association of 30 kg N from cowdung along with 30 kg N/ha from
vermicompost. In post harvest soils, the contents of organic matter, total
nitrogen, available phosphonis and exchangeable potassium increased due to
application of cowdung and vermicompost compared to initial soil. In the
contrary, soil pH value decreased slightly as compared to that of initial soil.
Application of urea-nitrogen alone slightly decreased the organic matter. The
overall results indicate that 100 kg N from urea along with 40 kg N/ha as the
source of cowdung was the best treatment in producing higher rice yield with
sustenance of soil fertility.
Description:
A Thesis
submitted to the Department of Soil Science
Sher-e -Bang/a Agricultural University, Dhaka-1207
in partialfulfiliment of the requirements
for the degree
of
MASTER OF SCIENCE (M.S.)
IN
SOIL SCIENCE
SEMESTER: JANUARY-JUNE, 2012
