Abstract:
A research work was carried out at the Research Farm, Sher-e-Bangla Agricultural
University, Dhaka during the period from November 2016 to March 2017 in order
to determine the suitable nitrogen source to observe the growth performance with
a view to increasing the yield of potato. The experiment consisted of eight
treatments. The experiment was laid out with Randomized Complete Block
Design with three replications. Experimental results showed that nitrogen sources
had significant effect on plant height, number of effective stem hill
, wt. of tuber
(g), yield of tubers (kg plot
-1
), yield of tubers t ha
-1
, tuber fleshy dry matter
content, specific gravity, grading of tubers (% by number). Potato production
increased significantly due to the application of USG. The highest production was
observed in T
3
treatment. The application of T
3
treatment showed the highest wt.
of tuber hill
-1
(57.53g), highest tuber yield kg per plot (25.77), highest tuber yield
(29.45 t ha
-1
) than any other sources of nitrogen treatments. The mean apparent
recovery of N by tested varieties (Diamont) was obtained with the application of
USG in other treatment (except control) but the nitrogen use efficiency was
highest in T
3
treatment. Findings revealed that application of USG showed the
superiority over other sources of nitrogen to produce highest tuber yield of potato
and for all cases lowest results were found in T
1
treatment receiving no fertilizer
(control).
Description:
A Thesis
Submitted to The Department of Soil Science,
Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE (MS)
SOIL SCIENCE
