There is a local company that recycles waste products from various industries. They take the residual fiber out of paper towel manufacturing that is too fine to bind, and spread it on pastures in the local area - they call it FiberClay. It has lime in it because the recycled paper used to make paper towels had a lot of lime in it and this is like slow release free lime. They have sent me an analysis and this product has been spread twice before I got the lease over the last 10 years. I like free and useful but few things are free in the end.