Perennial crops are plants that live for more than two years. They reduce fertilizer input and soil erosion, and favor carbon sequestration. However perennials are declining due to soil pests and pathogens. Vukicevich et al. propose to use cover crops to select soil microbial communities that will benefit perennial crops.
Perennial polycultures and cover crops offer giant potential for agriculture and ecological restoration. Too bad so much of this information is behind a paywall and thus unavailable to those who need it most and would actually implement it.