The test results will tell you if you have enough topsoil, and what the pH is. Add lime if the pH level is below 6.0 and gardener's sulfur if it is above 7.0. Make sure you have enough topsoil. A six-inch topsoil base is ideal. Ensure the soil is aerated.
Compacted soil has no oxygen, and nothing can grow.
If you're starting a lawn from scratch, don't cover every available square foot of your yard with grass. Use trees, ground covers, native habitats. Keep the grass to no more than 5,000 square feet. Feeding Your lawn must be fertilized. Integrated pest management IPM is using pesticides as if a doctor were prescribing medicine.