Whether your lawn serves as an impromptu soccer field or as the main element of your landscape, its appearance and vigor are important. Keeping it healthy is more a matter of sticking to basic management practices than of looking to chemical solutions. The importance of paying attention to mowing height, aeration, drainage, irrigation, and fertilization really can't be stressed enough. Coupling these practices with use of suitable grass cultivars and healthy soil will give your lawn an advantage over the harmful microorganisms normally found in most yards.