| Summary: | A large combine harvester has long been used for harvesting rice in Malaysia. Recently, a
mini combine harvester has been introduced into this industry to be a low-cost alternative
for a large combine harvester. Thus, this study was carried out to compare the field
efficiency (FE), effective field capacity (EFC), fuel consumption (FC), and field machine
index (FMI) between a mini combine harvester (MCH) and large combine harvester
(LCH) under similar field conditions. The field performances of the combine harvesters
were measured during harvest operation in two consecutive seasons. The EFC for both
MCH and LCH in harvest operation were found to be 0.91 and 1.30 ha/hr, respectively. In
terms of the FE, MCH had 0.78% higher efficiency than LCH. For the FMI, LCH and
MCH had 0.86 and 0.87, respectively. For the FC, LCH consumed more fuel (14.51 L/ha)
as compared to MCH (14.25 L/ha). T-test statistical analysis showed that there was no
significant difference between LCH and MCH for FE, EFC, FMI and FC. The results
suggested that MCH was more efficient and economical in conducting the harvest
operation in a rice field.
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