Zinc EDTA 12% provides zinc in EDTA-chelated form, ensuring stability and bioavailability across a wide soil pH range (6–11). Chelation prevents zinc from precipitating as zinc phosphate, zinc carbonate or zinc hydroxide in alkaline soils — making it 3–5 times more available to plants than zinc sulphate at the same application rate.
Zinc is required for the synthesis of the plant hormone auxin (IAA), which controls cell elongation and root development. Zinc is also essential for the enzyme carbonic anhydrase, involved in CO₂ fixation, and for RNA polymerase activity in protein synthesis.
Deficiency symptoms: in rice — Khaira disease (brown rusty spots, stunted growth); in maize — white bud or striped leaves; in citrus — little leaf, mottled yellowing; in cotton and soybean — bronzing and interveinal chlorosis of younger leaves. All these symptoms respond rapidly to Zinc EDTA foliar application.
| Zinc (Zn) as EDTA | 12.0% min |
| EDTA content | 38% min |
| Water Solubility | Complete |
| pH stability | 6–11 |
| Moisture | 0.3% max |
| Heavy Metals | <10 ppm |
| Iron contamination | <0.01% |
| Form | Free-flowing white powder |
| Soil Application | 1–2 kg per acre |
| Foliar Spray | 0.5 g per litre |
| Drip Fertigation | 500g–1 kg per acre |
| Seed Treatment | 2–3 g per kg seed (suspension) |
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