Abstract:
An experiment was carried out during December 2004 to March 2005
to study the effect of nitrogen and phosphorus on the growth and yield of
bush bean at research field of Sher-e-Bangla Agricultural University,
Dhaka. Treatments consisted of three levels of N
viz.,
0, 20 and 40 kg/ha
and four levels of phosphorus viz., 0, 50, 75 and 100 kg/ha. There were 12
treatment combinations. The experiment was laid out in RCBD with three
replications.
The results of the experiment revealed that most of the growth
parameters i.e. plant height, plant population as well as yield attributes,
pods/plant and grains per pod significantly influenced by different levels of
nitrogen and here the highest at 40 kg N/ha. Different levels of phosphorus
also significantly exhibited the same trend as shown by nitrogen in respect
of almost all parameters.
In this experiment, the highest levels of nitrogen 40 kg/ha produced
the highest green pod yield (16.56 tiha) and seed yield (2.71 t/ha). While
crop fertilized with 75 kg P
205
2.58 ttha.
/ha gave pod 15.35 t/ha pod and seed yield
The combined effect of nitrogen and phosphorus was also significant.
The highest green pod yield (18.61 t/ha) was produced from the treatment
combination of 40 kg N/ha with 75 kg P
205
/ha and seed yield (2.96 VIm)
was produced from the treatment combination of 40 kg N/ha with 50 kg
P2051ha. it
was
lowest at control.
