Kim Brannen uses her background in soils and plant management when she mows. She has a method that allows more native wildflowers to grow on her land formerly planted in brome. These are plants in the seed bank that now have a chance to grow. See her technique at http://www.yankton.net/river_city/article_62c82cd4-ceee-11e2-b77d-001a4bcf887a.html