By Blake Jackson
Canola and wheat crops in western Kentucky are maturing quickly, indicating that harvest will begin earlier than usual. Favorable weather conditions across much of the state are expected to accelerate harvest progress beyond the five-year average, despite occasional scattered rain showers.
The drying rate of these crops in the field depends primarily on rainfall and relative humidity, as well as temperature, wind, and sunlight. Unlike corn, canola and wheat gain and lose moisture more rapidly due to different equilibrium moisture properties. Whether drying occurs in the field or storage, the final moisture level is strongly influenced by surrounding environmental conditions.
To help producers manage moisture levels, Clemson University offers a free tool that estimates equilibrium moisture content based on a five-day weather forecast. Using this tool, projections for several Kentucky locations showed a moisture reduction of three to six percentage points, bringing levels closer to those suitable for natural air or low-temperature drying systems—approximately 10% for canola and 15% for wheat. However, local variations may occur due to less accurate predictions of rainfall and humidity.
Proper airflow is also essential for effective grain drying and storage. Recommended airflow rates are 1.0 cubic feet per minute (cfm) per bushel for drying and 0.1 cfm for aeration. Matching fan capacity with grain depth ensures optimal drying efficiency and helps maintain quality.
Timely harvest and proper drying practices are crucial for preserving crop value and enabling earlier planting of double-crop soybeans. For summer storage, drying crops slightly below market moisture levels can help prevent mold and insect activity. Regular monitoring and proper ventilation are key to maintaining grain quality and avoiding spoilage.
Photo Credit: getty-images-pixelift
Categories: Kentucky, Crops, Corn, Wheat