EDTA-Chelated Zinc Fertilizers Formulations

EDTA-Chelated Zinc Fertilizers Formulations are advanced micronutrient formulations engineered to deliver zinc in a highly stable, fully plant-available form. In these products, zinc is chemically complexed with ethylenediaminetetraacetic acid (EDTA) to form a soluble zinc-EDTA chelate. This chelation process protects zinc ions from precipitation, fixation, and antagonistic soil reactions, ensuring consistent nutrient availability under diverse agronomic conditions.

Zinc is an essential micronutrient required for enzyme activation, protein synthesis, auxin production, and overall plant metabolic regulation. Zinc deficiencies commonly occur in neutral to alkaline soils, high-phosphorus systems, calcareous soils, and intensively cultivated farmland. Unlike unchelated zinc salts, which quickly convert into insoluble forms, zinc-EDTA remains soluble and bioavailable over a wide pH range, particularly in neutral to moderately alkaline soils.

Product Forms and Application Flexibility

EDTA-chelated zinc formulations are manufactured in both:

Liquid Grades

• Designed for fertigation systems

• Suitable for foliar application

• Easy mixing and rapid plant uptake

• Compatible with most soluble NPK fertilizers

Powdered / Water-Soluble Grades

• Ideal for dry blending

• Long-term storage stability

• Bulk transport efficiency

• Suitable for fertilizer manufacturing integration

Both grades are engineered to provide consistent zinc concentration, low impurity levels, and predictable chemical behavior in agricultural applications.

Manufacturing Technology

During production, zinc sources such as zinc sulfate, zinc oxide, zinc carbonate, or zinc acetate are reacted with EDTA under controlled conditions to form a stable zinc-EDTA chelate complex. The chelation process ensures:

• Controlled metal-to-chelate ratio

• High solubility in water

• Reduced free zinc precipitation

• Stable micronutrient delivery

• Compatibility with multi-nutrient blends

Strict quality control parameters are applied to monitor pH, chelation percentage, heavy metal limits, solubility, and micronutrient assay accuracy.

Agronomic Advantages

• Enhanced zinc mobility in soil solution

• Improved root absorption efficiency

• Reduced nutrient lock-up in calcareous soils

• Compatible with fertigation and foliar programs

• Uniform crop response and deficiency correction

• Suitable for high-value crops, orchards, vegetables, cereals, and horticultural production

Professional Use Positioning

These formulations are developed for professional agricultural operations requiring:

• Reliable micronutrient performance

• Batch-to-batch chemical consistency

• Compatibility with compound fertilizers

• Scalable industrial production

• Regulatory-compliant micronutrient formulations

CFS provides complete formulation technology, raw material guidance, processing methodology, quality control standards, and scale-up support for manufacturers seeking to produce high-performance EDTA-chelated zinc fertilizers.