Turf Grass Management: Adding Secondary Nutrients

Because secondary nutrients are elements that are already found within most soils, application is not necessarily a routine part of turf grass management. However, when needed, the most common application is adding calcium and magnesium by applying lime to acidic soils. If sulfur is needed due to lack of rainfall or decomposing organic matter, you can grasscycle your lawn clippings to add sulfur to your lawn.

What Are the Three Secondary Nutrients for Turf Grass?

  1. Calcium (Ca)
    • Third-largest element in turf grass, right behind nitrogen and potassium
    • An essential part of the plant cell wall structure
    • Accumulates in older plant tissues
    • Not often required as a nutrient in turf grass management programs due to sufficient amounts in soil
  1. Magnesium (Mg)
    • Essential for photosynthesis
    • Part of the chlorophyll in all green plants
    • Helps activate many plant enzymes needed for growth
    • Applied as a dolomite to maintain active growth and dark-green color
  1. Sulfur (S)
    • Helps with vigorous plant growth and resistance to cold
    • Required by turf grass plants in similar quantities to phosphorus
    • Not often required as a nutrient in turf grass management programs due to sufficient amounts in soil

Need Help? Call 1-800-464-0171

Loading...