Here are some tips on good fertilizing 1- Measure your lawn exactly to determine the amount of fertilizer required 2- The most important thing about fertilizing your lawn is to make sure that you apply the fertilizer evenly. One way to achieve this is to divide the fertilizer needed into two parts and apply in two different directions. 3- Do not use more fertilizer than necessary to maintain attractive growth. Over fertilization, especially with nitrogen, results in excessive succulent growth that requires frequent mowing, and leaves the lawn with no resistance to stresses of heat, drought, and disease. Excess fertilization can seriously damage your lawn. 4- Avoid fertilizing during the hot summer months. Slow growing grass is more resistant to stresses of heat and drought. Use only enough fertilizer to maintain color, do not force growth.