コンバイン収穫による異常籾の発生と乾燥
1966 年 28 巻 2 号 p. 100-102,106
詳細
1966 年 28 巻 2 号 p. 100-102,106
The authors discoverd the appearance of unclosed and cracked glume in unhusked paddy harvested by Combine-harvester in 1964.
In this investigation, we traced the relation between outbreak of the abnormal unhusked paddy and adjustment of combine-harvester and also experimented drying method for abnormal paddy.
Concerning the outbreak of abnormal unhusked paddy treated by combine-harvester, we discoverd that the outbreak occured in close relation with the cylinder speed:—the higher the speed, the more abnormal paddy appeared. Abnormal unhusked paddy also increased when cylinder clearance was excessively wide or narrow, flow of stuff fed into the cylinder was less, weight ratio of grain to straw was less, and grain moisturec ontent was about 24%.
Abnormal unhusked paddy produced from combine-harvester dried up at higher speed than normal one, and was easy to crack when it was ventilated under the same condition. It was considered that drying characteristics of abnormal paddy falls some where between normal unhusked paddy and husked one.
