The Role of Major Nutrients in Grass Plants
8 September 2025Plants capture light and energy converting this to carbon dioxide and carbohydrates, such as sugars which are required for crop growth. This process of photosynthesis and the rate at which a plant can complete this process dictates the yield and quality of crops. Nutrition plays a key role in ensuring the plant has the fuel to photosynthesise.
Grass plants absorb water and nutrients through their root systems. Nutrients in the soil are dissolved in water and can then be absorbed by plant roots. The major nutrients required for healthy development and growth are Nitrogen (N), Phosphorous (P), Potassium (K), Calcium, (C), Magnesium (M) and Sulphur (S). These nutrients have slightly different roles to play in plant and root development, but the plant is dependant on optimum levels of every nutrient to be able to function and grow effectively.

Lorna Galloway, SAC Consulting
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