Abstract:
A field experiment was carried out at the research field of Sher-e-Bangla
Agricultural University, Dhaka during the period of March to June 2014 to
study the influence of Azolla and urea on nodulation, growth and yield of
mungbean. The treatments were two mungbean (Vigna radiata) varieties viz.
BARI mung-5 (V
1
) and Chaiti mung (V
2
) and five fertilizer materials viz.
100% urea (F
1
), 75% urea+ 25% Azolla (F
2
), 50% urea+ 50% Azolla (F
3
), 25%
urea+ 75% Azolla (F
4
) and 100% Azolla (F
5
). The experiment was laid out into
Split-plot design with three replications where varieties were assigned in the
main plot and fertilizer materials in the sub-plot. The purpose of this experiment
was to evaluate variations between the local and modern variety of mungbean
and to study the possibility of substituting chemical fertilizer by biofertilizer
(Azolla). Results revealed that plant height, number of leaflets plant
, number
of branches plant
-1
, number of nodules plant
-1
and shoot length was higher in
BARI mung-5 at early stage but from 45 DAS to harvest these values were
higher in Chaiti mung as it is an indeterminate variety of mungbean.
Significantly higher economic yield (1.35 t ha
-1
) was obtained from the BARI
mung-5 compared to the Chaiti mung (0.98 t ha
-1
). The modern variety (BARI
mung-5) showed higher harvest index (22.30) and 1000-seed weight (42.74 g)
compared to the local variety (Chaiti mung). Varieties had no significant
influence on SPAD value and seeds pod
-1
of mungbean. Fertilizer materials and
the interaction of variety and fertilizer materials had no significant effect on
1000-seed weight, economic yield, biological yield and harvest index of
mungbean that reflects the positive indication of replacing chemical fertilizer
by Azolla.
-1
Description:
A Thesis
Submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGRONOMY
SEMESTER: JANUARY-JUNE, 2015
