They are not as long lasting as natural fertilizer. The main ingredients in fertilizer are, nitrogen, phosphorous and potassium. Nitrogen provides a rich, green color and promotes growth. Phosphorous promotes root growth and potassium helps the lawn resist disease and survive through changing climates. Fertilizer is needed because the grass uses a lot of energy to regenerate after being mowed.
Fertilizers supplement the roots with nutrients drawn from the soil.
It will keep your lawn healthy and green. When fertilizing use one pound of actual nitrogen per 1,000 square feet of lawn during growing season. This will keep your lawn healthy year round. When purchasing fertilizer, their packages have a three-digit number that shows how much of each nutrient the fertilizer contains by weight. If the lawn has an abundance of weeds use a fertilizer with more phosphorous.