MICROP - OMRI Listed Nature's Biofertility ProgramFor larger crop and turf applications, use the original OMRI Listed Microp. Twenty times more concentrated than Microp L&G, Microp is the secret of thousands of growers. The beneficial microbes act like a green manure, allowing reduced use of synthetically derived nitrogen fertilizers. Soil structure is improved, resulting in decreased compaction, crusting and erosion, and increased soil aggregation, all of which results in increased plant yield.