Abstract:
A field experiment was conducted at the Sher-e-Bangla Agricultural University Farm,
Dhaka 1207 during the
Rabi
season of 2004-2005 to study the effect of vermiconipost
and NPK on the growth. chemical composition and yield of wheat. The experimental
soil was silty clay in texture having pH of 6.0. The treatments were 4
levels of
vermicomposts viz. 'V(0 t ha'), V1 (l c ha'), V
2
(2 t haj, V(3 t ha5, and
4 levels of
chemical fertilizers viz. 50 = (0-0-0 k
g
ha'). F1
=
low (40-30-20 kg ha'). F2 =
medium (80-60-40 kg haj and F3 = high (120-80-60 kg ha) of N-P205-K2
0 with
16 treatments combinations and 3 replications. The results demonstrated that with the
increasing the closes of vermicomposts and chemical fertilizers increased grain and
straw yield of wheat significantly. The maximum significant grain and straw yields
were obtained with the treatment combinations V
3?2 or V?3 The highest doses of
vermicompost and chemical fertilizers increased N, P. K and S concentrations in
wheat plant significant at different stages of plant growth and also enhanced N, P. K
and S uptake significantly at the ripening s(agc. Application of chemical fertilizers
failed to increase organic matter content of post harvest soil, where as vermicomposts
showed a significant positive effect. Vermicompost and chemicals fertilizers also
increased N. P. K and S status of soil significantly.
Description:
A Thesis
Submitted to the FaciLity of Agriculture.
Sher-e-Bangla Agricultural University, Dhaka.
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
SOIL SCIENCE
SEMESTER: .JULY-DECEMBER, 2005
