Incorporating cover crops with tillage reportedly results in increased cover crop decomposition rates and increased mineralization of nutrients from cover crop biomass. Multiple studies have reported mixed results for corn-soybean grain yields when planted after cover crops.
In an article recently published in Agronomy Journal, researchers reported results of a four-year study on corn-soybean rotation. Treatments were completed under either conventional tillage or no-tillage, and with and without cover crop. Researchers included three rotations: cereal rye-soybean-hairy vetch-corn, cereal rye-soybean-oat+radish-corn, and no cover crop-soybean-no cover crop-corn.
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