pumpkin patch after harvesting

After harvesting my pumpkins, would it be a good idea to plant something in the late fall, or early next spring to help give the soil something back (without taking away what the pumpkins usually use up) before I plant pumpkins next year? If so, what would be good to plant?
Other than rotating patches which I have been doing, is there anything else I can add to the soil which appears to be getting tired?
Thanks, Matt
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Matt said:

Hairy vetch or winter rye are usually recommended as fall/winter cover crops. Both will be green and growing in the spring. Oats can be used in the fall and will winter kill.

Other than adding plenty of compost?
Get a professional soil test that includes the major minor nutrients. That will indicate what has been depleted in your soil. Then start looking for more specific answers.
--
Pat in Plymouth MI ('someplace.net' is comcast)

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