Van Iperen Oligo Iron-IDHA 9% is a highly pure 100% chelated iron fertilizer, part of our in-house IDHA chelated product range, designed to counter Iron deficiency disorders on all crops.
Our patented IDHA chelating agent is the only biodegradable alternative to the classic chelates such as EDTA. It is mainly advised in foliar application. Soft on the leaf tissue, it doesn't leave any residues inside the plant, after it breaks down into naturally occurring plant components.
It is worthy to note that IDHA is a chelating agent, and not a complexing agent, having by far superior stability constant compared to other such alternatives on the market, thus the higher efficiency.
Made in EU with outstanding quality, the product is micro-granulated, dust free and user friendly.
- Patented IDHA chelate fully biodegradable
- Gives a strong apical zone, free of chlorosis
- Iron 100% chelated and fully available up to a pH of 6
- Developed for foliar application
- Soft for leaf tissue
- Rapidly dissolvable at high concentration
- Low in Chloride
- Brown/dark brown microgranules
- Patented micro granulation process
- Easy to handle, dissolve and apply
Foliar Application
| Crop | Application date | Min kg / ha / appl | Max kg / ha / appl | Conc. % (w/v)) |
|---|---|---|---|---|
Arable crops |
2 - 3 applications: • As of 1st symptoms of chlorosis |
1.0 | 1.5 | 0.02 - 0.10 |
Fruit trees (curative) |
2 - 3 applications: • As of 1st symptoms of chlorosis |
0.5 | 0.6 | 0.02 - 0.10 |
| Fruit trees (preventive) |
1 application: • As of end of flowering |
0.5 | 0.6 | 0.02 - 0.10 |
Vegetables curative |
2 applications: • As of 1st symptoms of chlorosis |
0.5 | 1.0 | 0.02 - 0.10 |
| Vegetables (preventive) |
1 application: • As of generative growth |
0.3 | 0.5 | 0.02 - 0.10 |
In case of foliar feeding as part of a mix with crop protection products, a compatibility test has to be done prior to preparing the spray-mix.
The mentioned indicated dosages and application stages are given as a guideline. Exact dosages, concentration and application stage are subject to local conditions, use of other fertilizers and can only be given after an objective diagnosis.
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Compatible with other fertilizers. The pH of the tank solution should be above 4.
Other options:
Oligo Copper-EDTA 15%
- Cures Copper deficiency - shown as curled - small new leaves
- Micronutrients 100% chelated and fully available up to a pH of 6
- Easy to handle, dissolve and apply
- Developed for foliar application. Also suitable for fertigation in open field and greenhouses
- Soft for leaf tissue
Fertilizing Knowledge
How to choose an Iron chelate?
There are many options to add Iron to your crop. The most efficient way is chelated Iron for its stability, availability for the plant and its easiness to use. But choosing among the different solutions can be a challenge. How to choose? We can help you!