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EDTA CuK2

General Properties and Industrial Significance:

EDTA-CuK₂ is a copper chelate where copper (Cu²⁺) is bound to EDTA (ethylenediaminetetraacetic acid) and stabilized with two potassium (K⁺) ions. It is a water-soluble, stable form of copper, used primarily in agricultural applications to provide plants with an essential micronutrient.

EDTA-CuK₂ is a chelated copper compound that keeps copper in a soluble, plant-available form, preventing it from reacting with other soil elements that might make it unavailable.

The potassium (K⁺) ions help neutralize the charge of the chelate, making it stable in solution and effective for plant uptake.

 

Applications:

  • Agriculture:

  1. Copper deficiency correction (chlorosis): It is used to correct copper deficiency in plants, especially in crops like citrus, tomatoes, corn, soybeans, and ornamentals.
  2. Copper is crucial for:
    • Enzyme activation (important in photosynthesis and respiration).
    • Chlorophyll formation.
    • Lignin production (for strong cell walls).
    • Reproductive development.

  • Application Methods:

    1. Soil application: Applied directly to the soil to correct deficiencies.
    2. Foliar spray: Applied to plant leaves for rapid absorption.
    3. Fertigation: Added to irrigation systems for consistent nutrient delivery.
    4. Hydroponics: Used in water-based growing systems.
 

Key Benefits:

  • Solubility and Bioavailability:

Keeps copper in a form that is readily available to plants.

  • Prevents Copper Lock-up:

Especially effective in alkaline soils where copper can become insoluble.

  • Potassium (K⁺) Contribution:

The potassium ions also provide some additional nutritional benefit, particularly for crops that require both copper and potassium.

  • Stable in Solution:

The chelation with EDTA helps prevent the copper from binding with other compounds in the soil, ensuring it remains available for plant uptake.

 

Summary:

EDTA-CuK₂ is a chelated form of copper, used in agriculture to correct copper deficiencies and ensure efficient nutrient uptake in plants. It is ideal for use in soils with high pH or alkaline conditions where copper might otherwise become unavailable. The added potassium also supports overall plant health and growth.