用热烘干小麦或大麦
小麦和大麦可以用热烘干. Heat raises risk of grain damage and temperatures should be reduced as compared to drying corn with heat. Keep grain temperature below 140°F for grain used for milling and keep it below 110°F for grain used for seed or malting.
来自: 小颗粒田间指南, J.J. 威尔斯玛和J.K. Ransom, 2005; Chapter summited by: K. Hellevang和W. 证明.
曝气控制谷粒温度
Cool grain to less than 60°F as soon as possible after harvest by running aeration fans during cool weather. In the late summer, this might mean running fans only at night. Don’t worry too much about high nighttime relative humidity during aeration because grain rewets much slower than it cools.
In late fall or early winter, use aeration fans to cool the grain to 20 to 30°F for winter storage. If the grain is not stored at less than 20°F during winter, you shouldn’t need to run fans to warm the grain in spring. 如果你在春天开风扇的话, start early in the season (March or April) and make sure you don’t warm the grain beyond 40°F. Cooling grain limits mold and insect activity and it reduces moisture migration. Moisture migration can result in rewetting and eventual spoilage of the grain at the top center of inadequately cooled bins.
Estimate the number of hours a fan must be operated to cool a bin of grain by dividing the number 15 by the airflow in cfm/bu. 例如，大约需要15/0.2 = 175 hours, or about three days of fan operation to cool the grain.
另请参阅 作物储存管理(AE-791) or Management of Stored Grain with Aeration (FO-1327) from University of MN 扩展 Service.
来自: 小颗粒田间指南, J.J. 威尔斯玛和J.K. Ransom, 2005; Chapter summited by: K. Hellevang和W. 证明.
大麦水分含量表
结痂粮食的贮藏
镰刀菌素 head blight infected grain will deteriorate slightly faster than uninfected grain. 在明尼苏达大学的研究中, differences to storability between gravity table cleaned up grain and scab infected grain was very small. Careful grain managers can store the crop and wait for better marketing opportunities.
在这项研究中 镰刀菌素 真菌在16%水分的条件下死亡, thus stopping DON production during storage at less than 16% moisture. DON在18%和20%水分的样品中仍能存活.
来自: 小颗粒田间指南, J.J. 威尔斯玛和J.K. Ransom, 2005; Chapter summitted by: K. Hellevang和W. 证明.
