Cover Crop Mixtures Must be ‘Farm-Tuned’ to Provide Maximum Ecosystem Services
Penn State researchers, in a recent study, were surprised to learn that they could take the exact same number of seeds from the same plants, put them in agricultural fields across the Mid-Atlantic region and get profoundly different stands of cover crops a few months later, writes Jeff Mulhollem at Penn State News.
The study came to be known as “‘farm-tuning’ cover crop mixtures,” noted researcher Jason Kaye, professor of soil biogeochemistry, who added that the findings are significant because they show the need to customize cover crop mixes to achieve desired ecosystem services, depending on soil and climatic conditions.
Cover crop mixtures comprised of multiple species planted in rotation between cash crops provide a suite of benefits — such as erosion reduction, weed control, and adding carbon and nitrogen to the soil. But it turns out, the expression of species in a mixture can differ greatly across locations.
Continue reading at Penn State News.
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