Chelate of iron 2922498500
Physical and chemical characteristics
Iron chelate is a micronutrient fertilizer containing iron in a chelated form in the amount of 25 –30 g / l. The pH is close to neutral (6–8).
Iron chelate is a coordination compound of an iron ion with two or more donor ligand atoms (neutral molecules).
Iron chelate (fertilizer) has the following properties:
- At pH <2 (acidic solutions), it can break down and turn into soluble inorganic salts. At pH> 9 (alkaline solutions) it also decomposes with the transition of cations into practically insoluble hydroxides.
Iron chelate decreases concentration when exposed to light and when exposed to ultraviolet radiation.
Behavior in soil
Iron chelate, as a complex organic compound, when introduced into the soil remains in a mobile (assimilable) state for a long time.
Through the root system and leaves, the chelate can enter the stem and leaves without changes, but after 1–3 days it is destroyed with the transition of the metal cation to the metabolites of plant tissue.
Separation of chelated forms of iron can also be observed in the soil before absorption, which accelerates the recovery of Fe 3+ to Fe 2+ on the surface of the roots, which usually absorb the Fe cation 2+ .
Treatment of plants with iron chelate is performed during root and foliar treatment of plants. The maximum efficiency, especially when processing plants with chlorosis, is observed when foliar processing.  < Simultaneously with or after the complexing agent, an aqueous solution of ammonia or ammonium citrate is added in order to achieve a pH of 2.0–2.3. The complexing agent can be supplemented with succinic acid. This method allows you to obtain the product in the form of a concentrated solution containing up to 100 g / l of iron.
|Concentrated form of fertilizer||Yes|
|Type of fertilizer||Chelate of zinc|