Fe-EDTA with 13% iron is a fertilizer in which the element of iron (Fe) is bound to an EDTA chelate. Iron is important for the growth and development of a plant. It is used by the plant for the formation of chlorophyll and therefore important for the photosynthesis. Furthermore, many enzymes need iron to perform their function. Suitable for a pH between 4.0 and 6.0.
General product description: Chelated trace elements are more effective because the chelating molecules protect trace elements against insolubility and are also recognised by plant enzymes (that collect micronutrients and transport to tissues). There is a different chelating factor in pH target stability and light sensitivity. Trace element Chelate former pH target Stability:
| Type of chelate | Stable at pH |
| Fe EDTA | 1 – 6.5 |
| Fe DTPA | 1 – 7.5 |
| Fe EDDHA | 4 – 10 |
