Abstract:
The present research was undertaken with the aims to investigate the influence
of nutrient sources and onion cultivars on growth and yield of onion in the field
condition. The experiment was conducted during the period from October 2018
to March 2019 at Horticultural farm of Sher-e-Bangla Agricultural University,
Dhaka. The experiment was performed with Randomized Complete Block
Design which consists of two factors viz. Factor A: Nutrient sources- 4 Kinds
viz. F
0
= Control, F
1
= Foliar spray (NPKS), F
2
= Inorganic fertilizer (NPK) and
F
3
= Vermicompost and Factor B: Cultivars of Onions- 3 Kinds viz. V
1
= BARI
Piaz-1, V
2
= BARI Piaz-4 and V
3
= BARI Piaz-5. The results demonstrated that
growth parameters, reproductive components, and yield were significantly
different among the different treatments. The highest plant height (52.66 cm) and
number of leaves plant
-1
(6.61) were obtained from treatment combination V
1
and V
2
F
3,
respectively. Though the highest straw yield (5.80 t) ha
was obtained
from treatment combination V
1
F
2
but the highest bulb length (4.15 cm), bulb
diameter (4.46 cm), fresh weight of bulb (46.88 g), yield plot
-1
(1125.28 g) and
yield ha
-1
(12.09 t) were obtained from treatment combination V
3
while the
lowest was recorded from V
2
F
0
. The highest yield was recorded in Onion cultivar
BARI Piaz-5 with application of inorganic fertilizer (NPK) compared to other
treatments.
