They probably get more protien out of their plants do to genetics but as far as plot success I can't see much difference/money. Even with lime/fertilizer I'm not getting the good plant growth I would like to see. Soil ph is 7.2-7.5 so that's not a problem. I can't get enough clover growth to even think of mowing so I started planting a blend of clover/brassica/chickory. I get maybe a 30-40% germination so I think the problem is in the seed bed. Still working out the kinks.