Abstract
The mechanization of rice production is important, especially for harvesting. To improve the work capacity and reduce the operating cost of rice combines, we studied the work patterns and the operating efficiency of the machinery. The factors affecting operating costs were evaluated.
To study the effect of two harvesting patterns – circuitous and continuous on the efficiency of rice combine; we estimated a series of work locus equations. Work efficiency and capacity were defined by the area of the paddy field, type of machinery, and work patterns. With field area <0.4 ha, a circuitous pattern was efficient. With fields 0.4–0.5 ha, either pattern could be used. A continuous pattern was efficient for larger areas.
Operating capacity and purchase price were the major factors determining operating cost. In terms of long-term development, a larger combine is more economical.
