Abstract:
Nitrogen and vermicompost may affect the yield and quality (dry matter,
specific gravity and TSS) of potato. In Bangladesh quality of potato is the main
constraint for expansion of potato industry. To partially overcome this
constraint an experiment was carried out in the research field, Sher-e-Bangla
Agricultural University, Dhaka during the period from November, 2013 to
February, 2014 to find out the growth, yield and quality of BARI TPS-I as
influenced by nitrogen and vermicompost. The experiment was laid out in a
split plot design with three replications. The experiment comprised with two
factors viz. (i) nitrogen dose and (ii) vermicompost level. Four nitrogen doses
(N
0
= 0 kg N ha
-1
, N
1
= 100 kg N ha
-1
, N
2
= 150 kg N ha
-1
, N
3
= 200 kg N ha
) and
four vermicompost level (Vm
0
= 0 t ha
-1
, Vm
1
= 5 t ha
-1
, Vm
2
= 10 t ha
= 15
t ha
-1
). Nitrogen dose was placed along the main plot and vermicompost level
was placed along the sub plot. The data on crop growth parameters like days
to emergence, plant height, leaves plant
-1
, SPAD value of leaves and stem
diameter were recorded at different growth stages. Yield and quality
parameter of tuber were recorded after harvest. Results revealed that,
different levels of nitrogen had significant effect on most of the growth, yield
and quality contributing parameters of BARI TPS-I. The treatment N
(150 kg
N ha
-1
) produced maximum yield (26.70 t ha
-1
) whereas, N
)
showed minimum yield (18.53 t ha
-1
0
). Vermicompost levels also had
significant effect on most of the growth, yield and quality contributing
parameters of BARI TPS-I. The results showed that most of the parameters
were increased with the increasing vermicompost levels. The treatment Vm
(15 t ha
-1
) produced maximum yield (26.03 t ha
-1
) which was statistically
similar with Vm
2
(10 t ha
-1
) treatment whereas, Vm
0
-1
-1
, Vm
2
3
(0 kg N ha
(0 t ha
) showed
minimum yield (19.75 t ha
-1
).Treatment N
3
(200 kg N ha
-1
-1
) along with Vm
(vermicompost 10 t ha
-1
)
performed the best results in terms of growth, most
of the yield and quality parameters.
-1
3
2
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2015
