INFLUENCE OF NITROGEN FERTILIZER AND PLANT DENSITY ON THE PERFORMANCE OF BLACKGRAM
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
The experiment was conducted during the period from March to June, 2015 at
the Research Farm of Sher-e-Bangla Agricultural University (SAU), Dhaka to
find out the influence of nitrogen fertilizer and plant density on the performance
of blackgram. Blackgram variety BARI Mash-3 (Hemantoo) was used as
planting material for the study. The experiment comprised of two factors; Factor
A: Levels of nitrogen (3 levels)- N
0
: 0 kg N ha
-1
(control), N
1
: 20 kg N ha
:
40 kg N ha
-1
and Factor B: Plant density (4 levels)- D
1
: 15 plants m
: 30
plants m
-2
, D
3
: 45 plants m
-2
, D
4
: 60 plants m
-2
. The experiment was laid out in a
split-plot design with three replications.
Nitrogen level were assigned to main
plots and plant densities to sub plots. Data on different yield parameters and
yield of blackgram were recorded and statistically significant variation was
observed for different treatments. In case of nitrogen fertilizer, at harvest the
tallest plant (61.91 cm), the longest pod (5.59 cm), the highest weight of 1000seeds
(40.83
g)
and
the
highest
seed
yield
(1.23
t
ha
-1
) were found from N
(40 kg
N ha
-1
), while the shortest plant (56.20 cm), the shortest pod (5.14 cm), the
lowest weight of 1000-seeds (36.88 g) and the lowest seed yield (0.89 t ha
)
were recorded from N
0
(0 kg N ha
-1
). For plant density, at harvest, the tallest
plant (62.97 cm), the longest pod (5.70 cm), the highest weight of 1000-seeds
(40.83 g) and the highest seed yield (1.19 t ha
-1
) were recorded from D
(45
plants m
-2
) and the shortest plant (57.62 cm) was found from D
1
-2
-1
, D
2
(15 plants m
),
while the shortest pod (5.07 cm), the lowest weight of 1000-seeds (37.83 g) and
the lowest seed yield (0.93 t ha
-1
) were recorded from D
4
(60 plants m
). Due to
the interaction effect of nitrogen fertilizer and plant density, at harvest the tallest
plant (68.29 cm), the longest pod (5.98 cm), the highest weight of 1000-seeds
(42.34 g) and the highest seed yield (1.49 t ha
-1
) were recorded from N
(40 kg
N ha
-1
+ 45 plants m
-2
), whereas the shortest plant (51.18 cm) recorded from
N
0
D
1
(0 kg N ha
-1
+ 15 plants m
-2
) but the shortest pod (4.82 cm), the lowest
weight of 1000-seeds (34.33 g) and the lowest seed yield (0.73 t ha
) were found
from N
0
D
4
(0 kg N ha
-1
+ 60 plants m
-2
). From the above results it was appeared
that 40 kg N ha
-1
with 45 plants m
-2
provided the best yield attributes and yield of
blackgram cv. BARI Mash-3.
Description
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
Keywords
NITROGEN FERTILIZER, PERFORMANCE OF BLACKGRAM