Kladivko says a lot of advice is available from the Midwest Cover Crops Council.
Many farmers, who have explored the use of cover crops in the past and have been frustrated with the rules about insuring row crops following a cover crop, are advised that USDA’s recent drought initiatives have addressed some of the issues. While the official authorization has not yet occurred, USDA indicates it will allow insurable row crops to be grown after a cover crop has been cultivated over the winter.
Corn ground which may have unused nitrogen could be a great candidate for a fall/winter cover crop, to help with soil retention, capture the unused nitrogen, provide that nitrogen for the next crop, increase soil organic matter, and feed soil organisms. The drought this year has left this year to be a perfect time to plant a cover crop.
Source: FarmGate blog