Monday, February 13, 2012

Major Nutrients Needed by Lawn Grass

A key component of lawn care is providing the lawn with the nutrients it needs to grow. Each nutrient is involved in different plant processes. Nutrients are loosely grouped into two categories: Macronutrients and micronutrients. The nutrients listed under Macronutrients are almost always in lawn fertilizers. Potassium, calcium, magnesium and sulfur are sometimes categorized as macronutrients, and other times as micro-nutrients. Each has its specific function in plant growth and development.
Macronutrients
Nitrogen
Phosphorous
Potassium
Micronutrients
Calcium
Magnesium
Sulfur
Iron
Manganese
Copper
Zinc
Boron
 Lawn Fertilizer Analysis
 Most lawn fertilizers contain the macronutrients, or what you could call "the big three:" Nitrogen (N), Phosphorous (P), and Potassium (K). The fertilizer bags have their N-P-K analysis, or numbers that tell consumers how much of each nutrients is in the fertilizer, by percentage. This can also tell you how many pounds of active ingredient are in each type of fertilizer. For example, a 10-10-10 fertilizer has the same percentage of each ingredient. 100 lbs of the fertilizer would have 10 lbs of each active ingredient. Here's what each of the "big three" do for plants: Nitrogen: The basis of all protein and DNA. Used mostly for growth. Nitrogen application is said to "green up the grass" because it is incorporated into the leaf tissue. Phosphorous: This nutrient plays an integral part in photosynthesis, energy transfer and flower/fruit growth. Plants without enough phosphorous do not produce many fruits, and their seeds can be deformed or not fully formed. Potassium: Many processes within the plant use potassium. Sugar movement, cell division, root development and water retention all require potassium.

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