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Largest Farm to Grow Crops Under Solar Panels Proves To Be A Bumper Crop For Agrivoltaic Land Use
(site.extension.uga.edu)
This is a most excellent place for technology news and articles.
They use robotic equipment mixed with occasional human support. It's possible but it's a high tech farm, quite expensive and thus not open to every farmer. Tractors, even small ones, are quite huge for that kind of farming practice.