Abstract:
The experiment was conducted at the farm of Sher-e-l3angla Agricultural University, Dhaka.
Bangladesh during the period from March to May 2007 to study the effect of phosphorus and
weed management on the growth and yield of mungbean. The experiment consisted of two
factors: Factor A: four levels of phosphorus P0: 0kg P205; P,: 30kg P
205; P
2: 60 kg P205 and
P): 90 kg P
20
5 ha1:
Factor B: three levels of weeding: W0: No weeding; W1:
One weeding;
W2
: Two weeding. Phosphorus was found to show significant variation at different days after
sowing (IS to 55 DAS) on studied parameters as plant height, number of leaves plant
1.
number of flowers plant', total dry matter accumulation. number of pods plant'. thousands
seed weight, seed yield ha and harvest index (%).
But phosphorus could not show any
significant effect on CGR and RGR values. Among the four levels of phosphorus P
2showed
significantly the highest values on all the parameters. while the lowest values against all the
corresponding parameters were recorded from P
o
. The highest values of seed yield and
harvest index were recorded as (1.31 t ha) and (22.07%) which were obtained from 1
1
2 while
the respective lowest values were (0.86 t h15 and (14.32%) recorded from P
0. Response of
different weeding levels was also significant in all the study parameters except CGR and
RGR. Among the three levels of weeding W2
(two weedings) performed best in all the
parameters and W
0
performed the lowest. The highest yield (1.1! t hi') and the highest
harvest index (20.48%) were obtained from W
2
while the lowest yield (1.03 t hi') and harvest
index (18.12%) were obtained from W. Interaction effect of phosphorus and weeding had
significant effect on all the studied parameters except CGR and RGR. The combination of
phosphorus level P2 and the weeding level W
2 recorded the highest values in all the
parameters except pod length and number of seeds podS' that were found in P
2 W1 The
maximum (1.35 t hi') seed yield was recorded
from
P2W2
and the minimum (0.83 t hi') was
recorded from P0W0. The maximum (23.36%) harvest index was recorded from P
2W2 and the
minimum (13.55%)
was recorded from P0W0.
