Principles of Turfgrass Nutrition: Why Some Nutrients are Required as Fertiliser and Others Aren’t

There are 17 essential elements, but not all of those are required as fertiliser. The primary nutrients, macronutrients, secondary nutrients and micronutrients will be explained in terms of how the turf manager should think about adjusting their supply. The primary elements are never applied as fertiliser because the grass gets them from air and water. Of the macronutrients, those most often required as fertiliser are nitrogen and potassium. Secondary nutrients and micronutrients are rarely required by the grass, but are sometimes applied to ensure they are present in adequate amounts


Learning Outcomes:

  • Why primary nutrients are not applied as fertiliser
  • Why macronutrients are often applied as fertiliser
  • Why secondary nutrients are rarely required as fertiliser 
  • Why micronutrients are rarely required as fertiliser
  • How soil nutrient analysis and leaf tissue analysis are used to improve decision making about nutrient requirements
  • Be aware of the general nutrient requirements of high quality turf grass

Presented by Micah Woods, Chief Scientist, Asian Turfgrass Center

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