Tuesday, May 5, 2026

Farmers: Interested in building soil health in your high tunnel?

The University of MN and University of NH are conducting a collaborative on-farm trial of high tunnel cover cropping, with the goal of enabling organic high tunnel growers to reduce their dependence on purchased composts and manures by using nitrogen-fixing legume cover crops.

We've had amazing collaboration from about 65 high tunnel growers so far, and we're now recruiting for one last planting opportunity in summer 2026 (recommended seeding window May 15-July 15). Summer cover crops may be a good fit for your rotation if you are using your high tunnel for spring and fall "shoulder-season" crops or overwinter greens, or during a fallow year for your tunnel. If you participated in the trial last year, or in a different planting timeslot, you are welcome to re-enroll for summer 2026!

Participating farmers will receive seed of "best bet" legume cover crops for your chosen timeslot, as well as a free soil test. To learn more and sign up for the trial, please visit our enrollment form.

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