After Nitrogen, Phosphorus or phosphate is the second most frequently limiting macronutrient for plant growth. Phosphate plays a major role in the growth of new tissue and in the division of cells. It stimulates early root, plant growth, flower setting and hastens maturity. Plants perform complex energy transmissions, a function that requires phosphate. It’s linked to a plant’s ability to use and store energy, including the process of photosynthesis.
The amount of phosphate fertilization depends on the amount of phosphate that is available in the plant itself and in the soil, the pH of the soil and the requirement of the crop.