Consider a mix of white dutch clover and others the first year. Alphalpa and red clovers do get larger. When you do mow yearly or whenever clovers maintain a higher moisture content so you will need a good mower. Mostly mowing is to get rid of scrub trees and weeds. Between fruit trees consider nitrogen fixers like buffalo berry, seaberry, goumi or autumn olive. Autumn olive is not a problem in Kansas but in other places it can be. Here are more nitrogen fixers Category:Nitrogen-fixing crops - Wikipedia . This is a good article I mostly agree with 40 Nitrogen Fixing Plants To Grow In Your Garden . One of the things I do is breakup the idea of planting all of one thing. Pawpaw have no pests or diseases similar to persimmons and many others. Consider that growing many plants of the same type side by side almost always ends badly. Consider planting an organic orchard by using alternate trees. A first row might be this mulberry ,goumi , pawpaw, autumn olive, persimmon, pear, seaberry. When the diseases or pests show up they cannot move tree to tree easily. Many become a slave to their orchard not realizing the easier way is diversity and proper plant selection. If you do not mow it doesn’t matter much. You might like this Cover crop and mulch recommendations
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