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The important thing is minimizing the risk with this risky seeding. See how we employ frost seeding to help fill in those perennials for lush, full food plots. Alfalfa should be frost-seeded on well drained soils with near neutral pH … Some clover species are also not appropriate for pastures and/or this early-season time frame. Some clover species are also not appropriate for pastures and/or this early-season time frame. Alfalfa frost damage can sometimes occur in the spring after growth has started, resulting in damaged growing points. Thus, freezing usually isn’t a problem early on. Frost seeding switch right before a snow is good,frost seeding alfalfa will probably work.I like to plant mine in late sept early oct in Kansas.In Wisc. Frost-seeding is most often used to add legumes to grass pastures. Over time, some farmers have learned planting alfalfa in the fall instead of the spring can make a significant difference in alfalfa yield and development the following year. Grass species are much more difficult than legumes to frost seed successfully. Frost seeding legumes can be very successful when performed correctly using the best suited species. If there is existing alfalfa in a field, putting more alfalfa seed into the ground is counter productive. Timing of seeding for new alfalfa establishment is critical to the success of the emerging crop and for the future success of the stand. Topic: Frost Seeding Alfalfa and Chicory into a Clover Plot: Hey Bill, I have an acre of established clover that I’m considering frost seeding some alfalfa and chicory into soon, just waiting on the soil test results to come back. Frost seeding is an easy way to get legumes started in your pasture, grain field, or even in a declining stand of alfalfa. Alfalfa may be frost-seeded, broadcast, no-tilled or drilled into a prepared seedbed. Grasses that have worked occasionally for frost seeding are the small seeded ryegrass and orchard grass, or hulled orchard grass. Frost seeding. It relies on the freeze-thaw action of the soil in late winter to provide adequate seed-to-soil contact. In some cases, lightly disturbing the soil with a disk the fall before frost seeding can help increase success. Although alfalfa can take a light frost, when the emerging plants are young a hard frost could wipe out the seedlings at a vulnerable stage. Actually doing the seeding isn’t that tough. The down side of alfalfa is a built in autotoxicity that allows existing alfalfa plants to kill any new germinating alfalfa seed. Broadcast seeding in late winter, or frost seeding, is a widely used strategy to bolster pasture productivity or add new species to the forage mix. The danger of freezing actually is greater after alfalfa reaches the third or fourth trifoliate leaf stage, or about 4 inches … The use of certified seed of improved varieties coupled with good grazing and fertility management will ensure good establishment and production for years to come. Providing good seed-soil contact and limiting plant competition is key to frost seeding success. Overseeding, in particular, adds to the cost. These may include: establishment of forage in undisturbed sod, reduced labor, energy and cash expense compared to conventional tillage methods, the ability to establish forages with minimal equipment investment, and little, if any, “non-grazing” period. Alfalfa came in real nice but no grass at all. Alfalfa is extremely cold tolerant at emergence and this can give a false sense of security, but as the plant develops to two trifoliate leaves, frost sensitivity becomes greater and it may be killed by exposure to 26°F for as little as 4 hours until it reaches the three trifoliate leaf stage. You should frost-seed in January or February to allow freezing and thawing to work the seed into the soil. Red and white clovers are the most commonly used and establish well with frost seeding. Annual lespedeza can provide a drought-tolerant warm-season option in some areas. Iowa State recommends broadcasting 10-15 lbs/ac onto frozen ground and the seeding method is likely going to be dictated by what equipment you have available. Alfalfa is extremely cold tolerant at emergence and this can give a false sense of security, but as the plant develops to two trifoliate leaves, frost sensitivity becomes greater and it may be killed by exposure to 26°F for as little as 4 hours until it reaches the three trifoliate leaf stage. Small-seeded forages such as clovers do not spread as wide as people expect. Birdsfoot trefoil is another option and is often frost seeded in a mix with red clover. Its success is contingent upon freeze-thaw cycles that enhance seed-soil contact. Temperature is a critical component of most developmental pro - cesses in plants including germination. 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