The research was undertaken to study the effect of application of different rate of organic fertilizers on
broccoli. There were five treatments in total consisting of inorganic, organic fertilizers and blank
control. The organic treatment included compost applied with three different rates of chicken manure
tea (CMT) i.e. (0 ml/week, 100 ml/week and 200 ml/week) and the remaining two treatments were
inorganic fertilizer treatment and blank control. The vegetative parameters measured were stem
diameter, leaf number, leaf diameter, plant weight and height. In all the vegetative parameters
measured, the inorganic fertilizer treatment gave the highest mean value which was statistically
significantly different from other treatments except for leaf diameter which was statistically similar to
CMT 200 ml and compost treatment. The result showed that the head yield of inorganic fertilizer was
statistically highly significant over organic treatments, but there was no significant difference between
inorganic fertilizers and 200ml CMT/week and compost treatments. The highest yield was obtained
from inorganic fertilizer with the yield of 12.12 t/ha and the least from control with yield of 9.29 t/ha
respectively. The positive dose-response pattern of the CMT applications suggests that there is good
potential to further optimise this soil amendment. Also, an economic analysis of the costs and benefits
of the high performing organic treatments would be valuable.