Abstract
ABSTRACT A randomized survey of farmer's fields was conducted in Central Java to determine rice losses and labor re-quirements for the traditional ani-ani and sickle harvesting systems. Cutting losses were 5.88 percent with the ani-ani and 3.20 percent with the sickle. Foot-treading threshing losses associated with the ani-ani system were 2.39 percent while beating (threshing) losses associated with the sickle system were 5.63 percent. The total harvesting system losses were therefore, 8.26 per-cent for the ani-ani and 8.83 percent for the sickel—not a significant difference. A potential loss improvement for the sickle harvesting system would be a more efficient threshing method. A GPSS simulation model identified the considerable delay in harvesting as a function of (a) paddy maturity rate, (b) harvest crew availability, and (c) crew harvesting rate.
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