The study compared the aggregate agricultural productivity between the Low External Input
Technology (LEIT) and High External Input Technology (HEIT) Farms in Imo State of Nigeria. The state
is divided into three agricultural zones, out of which two were randomly selected for the study. Using a
multistage sampling technique, 80 LEIT farmers and another 80 HEIT farmers were randomly selected,
giving a total sample size of 160 farmers. The result of Chow F- test showed that the LEIT farmers who
used animal manure had a higher aggregate agricultural productivity than the HEIT farmers who used
inorganic fertilizer. It is therefore recommended that policies geared toward more production and
utilization of animal manure be put in place by the government.