Combine Test System for Determining Harvest Loss in Rice

A test system for determining combine performance was designed and evaluated in field tests. The test system allowed for the collection of material from the clean grain auger, shoe discharge, and rotor discharge separately and simultaneously. The collection devices were activated by a single switch, and the entire system was contained on the combine. The test system allowed for as many as 30 test runs to be conducted within a 4-h period. Operational experiences and recommendations for conducting combine tests in rice are described.