Moisture Content and the Hay Drying Curve
Many management decisions affect hay quality. After deciding when to cut, the next big decision is about the moisture content. Accurately timing how long to let the crop wilt when harvesting a forage crop will help ensure that it stores well. It either needs to have enough moisture to ferment correctly (silage/haylage or baleage systems), or low enough moisture content to preserve as dry hay. There are three types of moisture to consider when wilting a forage crop: stem moisture, dew moisture, and air humidity. Stem moisture is the amount of water within the plant. Dew moisture is water outside the plant, whether it is from rain or condensation (dew). Air humidity affects how quickly the crop can dry. If…
