Optimum phosphorus nutrition is associated with the quality and quantity of the root system. Natural soil chemistry conditions tend to quickly tie-up conventional phosphate fertilizers into chemical bonds that cannot be assimilated by the plant. Conventional phosphate is often applied in excess to compensate for these undesirable soil chemical reactions.
Calcium plays an essential role in root growth and is often overlooked. Inadequate plant available calcium will severely limit root growth.
Soluble carbon is critical to proper microbial function in the soil. Adequate microbial activity in the soil directly impacts root development.