Chaiyan Junsiri and Winit Chinsuwan

pp. 613 - 620

Abstract

The objective of this study was to predict header losses of a combine harvester when harvesting Thai Hom Mali rice. The results of the study indicate that grain moisture content (M), reel index (RI), cutter bar speed (V), service life of cutterbar (Y), tine spacing (R), tine clearance over cutter bar (C), stem length (H), product of M and Y (M*Y), product of M and V (M*V), product of RI and R (RI*R), product of V and C (V*C), product of V and H (V*H), V² and RI² were the major parameters affecting the losses. The prediction equations had R²
 = 0.75. The average percentage header losses given by the
estimation equation differed from the measurement by only 0.25.