They prevent wind and water erosion and they supply vital organic matter to the soil. They also absorb carbon dioxide and enrich the atmosphere with oxygen through plant photosynthesis. Selection of turfgrasses depends in large part on climatic conditions. Cool season grasses grow best in the North and warm-season grasses in the South. The growth cycle of grasses varies with temperature.
Seedbed preparations are similar for establishing nearly all grasses.
First you should plow, disk, or rototill to loosen the subsoil. Lime is generally required for soils east of the Mississippi River. Apply 50 to 90 pounds of ground limestone per 1,000 square feet every 5 to 6 years. When there is uncertainty about the need for lime, the soil should be tested. On established lawns, apply lime on the surface.