Abstract:
An experiment was carried out at Sher-e-Bangla Agricultural University research
farm, Dhaka to investigate the growth and yield response of blackgram (Vigna
mungo L.) as affected by nitrogen and phosphorus management during the period
from August to October, 2014. The experiment consisted of two factors. Factor A:
Nitrogen fertilizer (4 levels); N
0
: No nitrogen (Control), N
1
: 10 Kg N ha
: 20 Kg
N ha
-1
and N
3
: 30 Kg N ha
-1
, and factor B: Phosphorus fertilizer (3 levels); P
0
: No
phosphorus (Control), P
1
: 10 Kg P ha
-1
and P
2
: 20 Kg P ha
-1
. The variety, BARI mash1
was used in this experiment as the test crop. The experiment was laid out in a
Randomized complete block design with three replications (RCBD). Plant height,
number of leaves plant
-1
, number of branches plant
-1
-1
, N
2
, number of pods plant
, pod
length, number of seeds pod
-1
, weight of 1000-seeds, seed yield and stover yield were
compared for different treatments. Results revealed that, N
3
, P
2
treatment and their
interaction influenced significantly on most of the growth, yield parameters and
yield of blackgram. N
3
gave the higher yield (1.54 t ha
-1
) which was 57.14% higher
than N
0
(0.98 t ha
-1
). Application of P
2
greatly influenced the seed yield and P
2
produced (1.38 t ha
-1
) which was 50% higher than P
0
(0.92 t ha
-1
). The highest seed
yield (1.62 t ha
-1
) was recorded from the treatment combination of N
3
which was
88.37% higher than N
0
P
0
(0.86 t ha
-1
). The maximum yield might be attributed to
higher pods plant
-1
, seed pod
-1
, 1000-seeds weight considering the higher production of
blackgram. The maximum NPK concentration in seeds and stover was found from N
3
,
P
2
and their interaction N
3
P
2
whereas the minimum was found from N
0
,
respectively. Application of 30 Kg N ha
-1
and 20 Kg P ha
-1
could be the best fertilizer
management practices for cultivation of blackgram.
P
2
, P
0
-1
and N
0
P
0
Description:
A Thesis
Submitted to the Department of Soil Science,
Sher-e-Bangla Agricultural University, Dhaka-1207
In partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE
IN
SOIL SCIENCE
SEMESTER: JANUARY-JUNE’ 2015
