Ferrous Sulphate Heptahydrate 19% Bulk Supplier Guide: Calcareous Soil Remediation & Chlorosis Protocol

When searching for a trusted Ferrous Sulphate Heptahydrate 19 bulk supplier, agricultural input distributors and industrial blenders require consistent crystal geometry, high divalent iron (Fe2+) bio-availability, and moisture-resistant packaging. Iron deficiency causes severe interveinal chlorosis, drastically reducing crop yield and sugar extraction.

1. Divalent Iron (Fe2+) vs Ferric Insoluble Iron (Fe3+)

The biological efficacy of Ferrous Sulphate Heptahydrate 19% rests entirely on maintaining the iron in its reduced, divalent (Fe2+) state. When exposed to poor storage conditions, air, or high alkalinity, ferrous iron oxidizes into trivalent ferric iron (Fe3+), forming insoluble rust precipitates that plant roots cannot absorb.

• •Auron Vacuum Crystallization: Our manufacturing process uses controlled vacuum cooling and acidification to yield vibrant sea-green crystals (FeSO4 · 7H2O) with zero premature oxidation.

• •High Divalent Fe Content: Minimum 19.0% guaranteed elemental iron and 10.5% elemental sulphur in 100% water-soluble crystalline form.

2. High-Yield Soil Application & Calcareous Remediation

In calcareous black cotton soils and arid sandy loams with pH > 7.5, free calcium carbonate binds iron ions into insoluble calcium ferrites. To prevent lock-up:

• •Organo-Mineral Banding: Mix 15 kg of Ferrous Sulphate Heptahydrate 19% with 100 kg of moist farmyard manure (FYM) or composted pressmud. Natural fulvic and humic acids chelate the iron, protecting it from alkaline fixation.

• •Application Rate: 15 to 25 kg per acre applied as basal dose in Sugarcane, Groundnut, Citrus, Paddy, and Banana plantations.

3. Sourcing Logistics & Packaging Specifications

Auron provides Ferrous Sulphate Heptahydrate in heavy-duty moisture-barrier 50 kg HDPE bags with sealed poly-liners to prevent crystal dehydration or moisture absorption during transit across Indian states and international shipping lanes.