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A Small Plot Combine for Rice¹

A small Japanese combine used in rice (Oryza sativa L.) fields in Japan was modified to harvest rice research plots by removing the auger assembly and replacing it with a removable grain collection tray that holds up to 5 kg of grain. The combine cuts a swath 0.8 m wide. Our plots are normally 4 to 7 m long. A crew of two can harvest approximately 60 plots per hour, whereas, it would take the same crew at least 6 hours to hand harvest, thresh, and sack the grain. The combine is equipped with tracks and works well on dry ground or in water; however, if the ground is muddy the soil tends to stick to the tracks and curtail mobility of the combine. The modified combine also has been used to successfully harvest wheat (Triticum aestivum L.) plots but has not been satisfactory for harvesting sorghum (Sorghum bicolor (L.) Moench) or soybean (Glycine max (L.) Merr.) plots.

Key Words: Oryza saliva L. • Wheat • Triticum aestivum L. • Plot equipment • Harvest equipment

² Professor and associate professor, Texas Agric. Exp. Stn., Texas A&M Univ. Agric. Res. and Ext. Ctr., Beaumont, TX 77706.

Received for publication December 6, 1978.