The second method used is the PEAQ method. PEAQ stands for Predictive Equations for Alfalfa Quality and was first developed in Wisconsin. This method has been used to compare with NIR data in previous year's Green Gold programs and has been shown to be a good indicator of RFV of the standing crop. If the sample turn-around time is one day, the hay will be five points lower than when cut. The percentage of grass in the stand will also lower the RFV of the hay.
Alfalfa grown on lighter soils is usually more advanced that alfalfa grown on clay soils.
Unless you have the capacity to harvest all your hay in one day, start your harvest early to produce the highest quality forage. The next table gives you the RFV variation among different grass species at the same stage of maturity. The Drying Process Knowing when the field is ready to harvest is one thing, but it is quite another to harvest high-quality hay in spite of untimely rains. The following diagram will help you understand the drying process, and help you make critical management decisions in order to produce high-quality forage. Electronic moisture testers are now available, or you can contact Manitoba Agriculture and Food for information on how to determine forage moisture content.