Abstract:
A field experiment was carried out to study the effect of Nitrogen and Sulphur
on the growth and yield of summer onion at the Horticulture Farm of Sher-eBangla
Agricultural University, Dhaka during the period from February to July
2007.
The experiment was conducted with two factors; Factor A: Nitrogen
(thur levels
)
i.e. N
o
(0 kg N/ha), N 3
(60 kg N/ha), N
2
(120 kg N/ha) and N
3
(180 kg N/ha) kg N/ha and Factor B : Sulphur (four levels) i.e. S
0
(0 kg S/ha),
S(10 kg S/ha), 52(20 kg S/ha) and S
3
(30 kg S/ha).The experiment was laid
out in Randomized Complete Block Design (RCBD) with three replications. In
case of Nitrogen, N
2
produced the highest diameter of bulb (3.86 cm). dry
matter content of bulb (8.7 1%) and yield (17.58 tlha) and the lowest from N
0 1n
case of Sulphur, 53
produced the highest diameter of bulb (3.99 cm), dry matter
content (9.03%) and yield (16.05 t/ha) and the lowest from S
0
. For combined
eft'ëct N
2S3
produced the highest diameter of bulb
(4.95
cm). dry matter content
of bulb (8.71%) and yield (19.10 tlha) and the lowest from N
0S0
. Considering
above findings, the application of 120 kg N/ha with 30 kg S/ha is best for
growth and yield of summer onion cultivation.
