Abstract:
An experiment was undertaken at the farm of Sher-e-Bangla Agricultural University
(SAU), Dhaka, Bangladesh during October 2020 to June 2021 to evaluate the
influence of different levels (100, 120, 140 and 160 kg K ha
ii
-1
) of potash and sulfur
(5, 15, 25, and 35 kg S ha
-1
) on growth, yield, storage life and nutrients content of
BARI Piaz-6 in Randomized Complete Block Design (RCBD) having two factors
with three replications. There was no significant difference among the doses of sulfur
in the plant height, neck diameter, dry foliage weight plant
-1
and the percent of weight
loss at 1, 2 and 3 months interval with respect to weight of bulb at harvest of BARI
Piaz-6. But significant difference was observed in the leaf number, leaf length, bulb
diameter, bulb height, individual bulb weight, bulb yield, the concentration of N, P,
K and S in bulb of BARI Piaz-6 due to different doses of S. In case the effect of
different doses of potassium showed significant variation in the above all parameters
of BARI Piaz-6, where the highest and lowest results were obtained at 140 and 100 kg
ha
-1
potassium doses, respectively except the percent weight loss at 1, 2 and 3
months interval with respect to weight of bulb at harvest. The interaction effects of
different doses of S and K significantly influenced on all growth and yield data. The
highest plant height, leaf number, leaf length, neck diameter, fresh foliage weight, dry
foliage weight, bulb diameter, bulb height, individual bulb weight, bulb yield, and P,
K, S concentration in bulb were observed at 140 kg ha
-1
potassium with 35 kg ha
dose of sulfur and the lowest values of these parameter were found at the lowest
doses of S (5 kg S ha
-1
) and K (100 kg K ha
-1
) combination. The interaction effect of
sulfur and potassium doses significantly differed the percent weight losses with
respect to weight of bulb at harvest during storage at 1, 2 and 3 months interval,
where the highest weight loss was (11.36 %) and the lowest values of weight loss was
6.69% at 1 month interval. In case of 2 and 3 months interval, the highest weight
losses (16.77 and 22.20 %) were found respectively.
Description:
A Thesis
Submitted to the Department of Agricultural Chemistry
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
AGRICULTURAL CHEMISTRY
