“making an organic lawn transition”
The underlying philosophy behind organic lawn care is this: Healthy, chemical-free soil begets robust lawns that can virtually take care of themselves. After years of being inundated by chemicals to fend off grubs, eradicate weeds, and green up the turf, the natural capacity of the soil to perform these tasks itself has ceased operation, practitioners say. Cut it off from the chemicals cold turkey, and you’ll get things running again—naturally. And once the soil’s healthy, you might never have to deal with pesticides, herbicides, even fertilizers again.
The first step in switching from conventional to natural organic lawn care is to assess the quality of the existing lawn. If an existing lawn contains few weeds and consists of a desirable turfgrass species, natural organic methods and cultural practices can maintain a satisfactory lawn. Natural organic lawn care methods underscore good soil quality as a prime factor in growing healthy lawns. Good soil contains plenty of organic matter. Organic matter improves soil structure by binding mineral soil particles together to form aggregates.
Aggregates create greater pore space among the aggregated particles, providing optimal conditions for root growth. Increased pore space also improves both soil drainage and water-holding capacity and improves soil aeration. Sufficient quantities of organic matter in the soil also aid in nitrogen fixation, reduce soil borne plant diseases, and helps hold on to nutrients for plant use as needed. Good soil also contains adequate nutrients plants can readily use.
Herein is a well written article focusing on the basics of making an organic transition to a lush green lawn.