| dc.description.abstract | A field experiment was carried out at the research field of Crop Physiology and Ecology
department, Hajee Mohammad Danesh Science and Technology University, Dinajpur
during April to July 2018 to evaluate the performance of maize (BARI hybrid Bhutta-7) as
influenced by different levels of nitrogen and sulphur. The experiment comprised of two
factors; such as factor A: Three nitrogen levels, N0: 0 kg N/ha (control), N1: 100 kg N/ha,
N2: 150 kg N/ha and factor B: four levels of sulphur like, S0: 0 kg S/ha, S1: 15 kg S/ha,
25 kg S/ha and S3: 35 S/ha. The experiment was set up in a randomized complete block
design with three replications. Both nitrogen and sulphur significantly affected growth,
yield and yield contributing characters of maize. In case of nitrogen, the tallest plant,
highest leaf area, branch number per plant, maximum days to tasseling, silking and
maturity were observed in N2 (150 kg N/ha) but leaf number and plant dry weight was
highest in N1 (100 kg N/ha) and the result was minimum for all above parameters in N0
(0 kg N/ha). In case of sulphur, the tallest plant, highest leaf area, leaf number, branch
number per plant, plant dry weight, maximum days to tasseling, silking and maturity
were observed in S2 (25 kg S/ha) and the result was tolerant for all above parameters in
S0 (0 kg S/ha). In interaction, the tallest plant, highest leaf area, branch number per plant,
maximum days to tasseling, silking and maturity were observed in N2S2 interaction but
leaf number and plant dry weight was highest in N1S2 interaction whereas the result was
lowest for all above parameters in N0S0 interaction. In case of yield and yield
contributing characters like cob length, number of cob per plant, number of grains/cob,
1000-grain weight, grain yield and stover yield had significant variation due to different
nitrogen and sulphur levels. In different nitrogen levels, the best performance was
observed in N1 (100 kg N/ha) whereas, the lowest performance was observed in N0 (0 kg
N/ha). In different sulphur levels, best performance observed in S2 (25 kg S/ha) and the
lowest performance was observed in S0 (0 kg S/ha). Therefore in interaction, highest cob
length, number of cob per plant, number of grains/cob, 1000-grain weight, grain yield
and stover yield were found in N1S2 interaction and the result was opposite for all above
parameters in N0S0 interaction. Based on the above findings it can be concluded that an
application of 100 kg N ha-1 with 25 kg of S ha-1 is the best combination of nitrogen and
sulphur for obtaining higher yield attributes and yield of hybrid maize. | en_US |
