Can a no-till seeding of alfalfa be made into old sod in the spring?
Yes, some producers have been successful with spring seedings of alfalfa into old sod. In general, it is too difficult to attempt to kill the sod and seed during the spring. Therefore, we recommend that the old sod be killed the preceding fall with a non-selective herbicide (Roundup). The killed residue should be left on the soil surface over winter. Seeding can then be done the following spring during mid to late April. Even though some producers are successful with such spring seedings, a more reliable method is to kill the sod during summer and then seed sometime during August. Therefore, when possible, a farmer should seed alfalfa into sod during the summer. 5. When should alfalfa be fertilized? We recommend a split application of K: 1/2 should be applied following the first cut and 1/2 following the last regular cut (approximately mid-September). If, however, you can only apply K once, then a mid-September application is preferable. A single application of P is adequate. This can
