If participating in a cost share program, check for specific required planting dates and rates. If used for forage/grazing increasing seeding rate is recommended. Success of overseeding or aerial seeding after main crop maturity and before harvest is dependent on rainfall and although it can work well, it is usually less dependable than drilling or soil incorporation of seed. Do not save patented seed. When interseeding, time seeding to match appropriate crop growth/maturity. If planting in 15 or 30in rows, use the low end of the drilled seeding rate. Seed treatments are available if slugs are a problem when aerial seeding but if the system is organic be sure the treatment is certified for use in organic systems.
Follow NRCS guidelines for cover crop termination dates for crop insurance. If terminating with only tillage, multiple passes often required. May take two or more applications to chemically terminate. Do not plant a mix of varieties and follow best spray practices or termination may not be complete. Usually overwinters Generally not recommended except for specific uses and by highly experienced producers.
Dry matter highly dependent on planting and termination date and precipitation. Rapid establishment.
Non host for root knot nematode, soybean cyst nematode and sugarbeet cyst nematode. Excellent deep fibrous rooting plant.
Rapid establishment.
Non host for root knot nematode, soybean cyst nematode and sugarbeet cyst nematode.
Difficult to dry for hay. Baleage is preferred.
Can help reduce fragipans after multiple years of use.
If mowing, leave 3-4" to ensure regrowth;
Must be killed before it joints or after heading.
Could increase risk of spring cut worm and potato stem borer.
More difficult to kill after jointing and when temperatures are cool.
Host for Penetrans Root-Lesion Nematode.
Weed potential could be a problem if variety is not known.
May be hard to kill with glyphosate.
Some data suggest that annual ryegrass was less effective at reducing marestail than barley or cereal rye.
Additional Information
Additional Information from Managing Cover Crops Profitably, 3rd Edition, Edited by Andy Clark, Sustainable Agriculture Network See the complete reference here