An actual study on the preservation technologies of unhulled rice by field drying method in Okuetsu area in Fukui
2016
Ikeda, N. (Fukuil Preceftural Livestock Experiment Station (Japan)) | Sasaki, K.
The preservation technology which combined field drying method, that rice was dried in field for a while, and addition of lactic acid bacteria was studied in order to enable to preserve rice for longer term with lower cost in Okuetsu area in Fukui, where is rural depopulated area. In this study, the dates of transplant and heading, the numbers of day to dry rice in field, moisture content of rice, yield and lodging were researched. The moisture content of rice became below 20% in almost all field; therefore it could be said that field drying method could be used in Okuetsu area. It was inferred that accumulated temperature needed to be over 1240degC after heading to make moisture content of rice below 20%, and it was suggested that the smallest number of the day needed for field dry was of early variety (49 days), followed in order by mid-season variety (57 days) and late variety (64 days). Moreover, the varieties which were easily lodging were needed to be careful to prevent lodge and disease damage since crops lodged or got damaged by rice false smut were observed in some field.
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