Root. In the computer world, root refers to the top-level directory of a file system. The word is derived from a tree root, since it represents the starting point of a hierarchical tree structure.
Use a fertilizer with high levels of phosphorus. Phosphorus helps to prevent aluminum from creeping into the system of the hydrangea. Choose a fertilizer close to the ratio of 25/10/10 (Phosphorus is the middle number).
Phosphates used in heavy-duty cleaners: Trisodium Phosphates (TSP), Tetra- Sodium and Potassium Pyrophosphates, Sodium Potassium Pyrophosphate. Cleaning Uses. With regard to cleaning uses, phosphates are used in automatic dish detergents and laundry detergents to help soften water and remove soil, oil, and grease.