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KMID : 1098419970050040284
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Korean Journal of Medicinal Crop Science
1997 Volume.5 No. 4 p.284 ~ p.288
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Yield Variation in Different Harvest Time of Coix lachryma L. var. Ma-yuen STAPF
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Lee Eun-Seob
Lee Jun-Seok
Kim Ki-Jung
Lee Hyo-Sung
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Abstract
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In order to study on suitable harvest time of adlay utilizing self-feeding combine harvester with four rows, which is originally designed for rice harvest, harvesting were carried out at four different times (40, 50, 60 and 70 days after anthesis) . For efficient operation, appropriate working rows were 2 rows at 50 days after anthesis and working speed was 0.26m/sec at 60 days after anthesis. Theoretical working capability was 11.23a/hr at 60 days after anthesis. As the harvesting was delayed, water content of adlay decreased. Water content of culm+leaf was 69.7{sim}55.3% and water content of grain was 34.2% at 60 days after anthesis. The later adlay was harvested. the higher the percent of ripened grain was. But the immature grain was decreased. Remnants was less than 1.8% at 60 days after anthesis. The later adlay was harvested, the heavier volume weight was. Yield was the highest at 60 days after anthesis. When utilizing self-feeding combine harvester with four rows, which was originally designed for rice harvest, suitable harvesting time was 60 days after anthesis. Therefore, theoretically suitable harvest time was 68 days after anthesis.
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KEYWORD
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Adlay, Machine harvest, Working efficiency, Optimum harvest time
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