Abstract:
An experiment was conducted at Central Far-rn of Sher-e-Bangla Agricultural
University. Dhaka during the period from April to July 2006 to study the efibet of
different levels of nitrogen and spacing on growth and yield of maize. The
experiment was laid out in two factors Randomized Complete Block Design with
three replications. Factor A: Three levels of Nitrogenous (180, 220 and 260 kg
N/ha) and Factor B: Different types of spacing (50 cm x 25 cm, 75 cm
and 90 cm
x
25 cm) were used in the experiment.Incasc of nitrogen the maximum
number of cobs per plant (1.049), cobs length (16-7 cm), Stover yield (14.744t)
and lIan'est Index (28-953%) was observed in N2.The maximum number of grain
per cob (271-66), 1000-grain weight (446.444g) and grain yield (6.253t) was
recorded from N
3
incase of spacing number of cobs (1.063), cob length (16.9 cm).
1000- grain weight (440.1 Ig), grain yield (7.354t), Stover yield (15.844t) and
Harvest Index (32.142%) was found in S2. The maximum number of grain per cob
(313.667) was recorded from 53 Incase of treatment combination the maximum
number of cobs per plant (1.083) was found in S3N2 The maximum cob length
(18.8cm). 1000-grain weight (476.7g), grain yield (8.35t), stover yield (17.$7t),
harvest index (33.77%) and Benefit Cost Ratio (7.748) was found in S
2N7 The
maximum number of grain per cob (331.7) was found in S3N3•
