Abstract:
An experiment was conducted at the experimental field of Sher-e-Bangla Agricultural
University, Dhaka, Bangladesh during the period from January to May 2021 to
comparing paired row system with conventional system of planting in white maize
under varying fertilizer application. The experiment consisted of two factors. Factor A:
Fertilizer doses namely, F
1
= 100% 0f recommended dose; F
2
= 50% of recommended
dose; F
3
= 75% of recommended dose; F
4
= 125% of recommended dose; and factor B:
sowing methods, namely S
1
= sowing in line using planting configuration 50cmx 25cm;
S
2
= sowing in paired rows with 50 cm between two adjacent paired rows of planting
configuration of 30cm x 25cm; S
3
= sowing in paired rows with 70 cm between two
adjacent paired rows of planting configuration of 30cm x 25cm. From the trial, it was
evident that the highest plant height (208.67cm), number of leaves (13.66), dry matter
weight at 60 DAS and harvest , cob length (19.02 cm), cob circumference (18.53 cm),
number of grains cob
-1
(423), shell weight (16.83) and 100-grains weight (28.88 g),
grain weight plant
-1
(85.93g) were achieved by the treatment F
4
S
1
, while in case of
sunshine below the canopy , F
4
S
2
had the highest sunshine and F
1
had lowest
sunshine. The lowest plant height (185.43), no of leaves (10), dry matter weight at 80
DAS and at harvest, cob length (13.7 cm), cob circumference (12.1 cm), 100 grain
weight (21.63g) were achieved by F
3
S
2
, however lowest shell weight (8.66 g), number
of per cob (323.67) were obtained from F
2
S
2
S
1
. But in terms of grain yield (7.83 t ha
),
stover yield (12.91 t ha
-1
) and biological yield (20.74 t ha
-1
), the highest result was
obtained with F
4
S
2
where the lowest grain yield (5.67 t ha
-1
), stover yield (7.37 t ha
)
and biological yield (13.04 t ha
-1
) were with F
3
S
1
. In case of harvest index highest result
was (42.73%) for F
3
S
3
and the lowest result was (35.3%) for F
4
S
1
. The regression and
correlation coefficients were found to be strongly positive among most of the plant
parameters with leaf area and sunshine. The grain yield ha
-1
of F
1
S
2
was
statistically identical (7.68-7.83 t ha
).
Description:
A Thesis Submitted to
The Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTERS OF SCIENCE (MS)
IN
AGRONOMY
