Thanks Peter, I would call that stony ground not rocky and we have some parts of our place and many in our region that are much stonier and rockier than this and still apply the use of the homesteader's plow (the broadfork) or the keyline plow itself...Most important thing to realise is that if you want to build soil quickly its the interaction of the plants and the soil biota that make this possible. They don't like compaction and most importantly they don't like it when you keep the pasture short as this keeps the
roots short. Simple as that. So if you have no access to a plow or a fork or any other device then let pasture (lawns let to grow are pastures!) grow to just before flowering and then cut or graze them, preferably the latter so that you get production and manure/urine return. Want to garden this next or grow some
trees? Then heavy mulch to kill the pasture and/or
lasagne bed it up and you'll be away...Not hard especially in the humid zones of the US or anywhere else...All the best, Darren