Anderson, MarvinUlrich, Rudolph2021-02-252021-02-251949-11-01https://dr.lib.iastate.edu/handle/20.500.12876/95811<p>What happens to organic matter when the soil is cultivated? Is it possible or necessary to maintain the high organic matter content of the soil at near-virgin levels to maintain crop years?</p>articleisulib-bepress-aws-west145320019488farmscience/vol4/iss5/5Agriculture