Cover Crops

What is the best cover crop for nitrogen fixation?

Hairy vetch, crimson clover, Austrian winter peas, and field peas are the top nitrogen-fixing cover crops. Hairy vetch can fix 100-200 lbs N per acre over a winter season, the highest of common annual covers. Pair with a cereal grain (winter rye, oats) to add biomass and prevent vetch from getting weedy.

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