How Often Should Lawn Fertilizer Be Applied
Why Lawn Fertilization Is Important Lawn fertilizers are made of the three major nutrients nitrogen (N), phosphorous (P), and potassium (K) in various combinations and concentrations. Because nitrogen is the key nutrient for leaf growth, the ratio of nitrogen in lawn fertilizer is always the highest. Phosphorus is important for root growth, and potassium helps with water and nutrient absorption, but their numbers are always lower because most soils already contain enough or most of those two nutrients....