Dairy/cash crop with son and father, no-tilling since late 80s, farm about 1500 acres, corn, soys, wheat, forages, cover crops, manure and purchased municipal compost, use bio-solids - improve soil environment using compost, manure, and minimal tillage, cover crops to feed soil microbes last 5 years... definite improvements to soil structure, organic matter, moisture holding capacity, etc.