Abstract:
A field experiment was conducted at the Agronomy field of Sher-e-Bangla
Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from
April 2015 to June 2015 to study the efficacy of Pull 5 EC and 2, 4-D
herbicides on phenology and yield of BARI mungbean 6. The experiment
comprised of 7 treatments viz. Weedy check (T
), spraying of Pull 5 EC @
550 ml /ha at 15 and 25 DAS (T
2
1
), spraying of Pull 5 EC @ 600 ml /ha at 15
and 25 DAS (T
3
) , spraying of Pull 5 EC @ 650 ml /ha at 15 and 25 DAS (T
),
spraying of @ Pull 5 EC 700 ml/ ha at 15 and 25 DAS (T
), spraying of Pull 5
EC @ 750 ml /ha at 15 and 25 DAS (T
6
5
) and spraying 2,4-D 650 ml /ha at 15
and 25 DAS (T
) . Result showed that the tallest plant (36.78 cm) at harvest
was obtained from spraying of Pull 5 EC @ 600 ml /ha at 15 and 25 DAS (T
7
)
and the highest dry weight of plant was observed in spraying of Pull 5 EC @
650 ml /ha at 15 and 25 DAS (T
). At 25 DAS, the maximum number of weeds
was found in (T
7
4
) spraying 2, 4-D 650 ml /ha at 15 and 25 DAS and at 35 DAS
in (T
) Weedy check. The highest weed control efficiency of 78.10 % and
78.42 % were found at 25 and 35 DAS respectively with (T
1
) spraying of Pull 5
EC @ 600 ml /ha at 15 and 25 DAS. As far as seed yield was concerned, the
highest seed yield (1.64 t/ha) was obtained from (T
4
3
) spraying of Pull 5 EC @
650 ml /ha at 15 and 25 DAS followed by (T
) spraying of Pull 5 EC @ 600 ml
/ha at 15 and 25 DAS (1.6 t/ha). On the other hand spraying of 2, 4-D had
negative impact on growth and yield of mungbean.
3
4
3
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
