Copper 20

Copper 20 is a low-analysis, highly water-soluble, uniformly granulated copper fertilizer, specifically designed to assist in plant growth and maximizing yield.

Benefits of Copper: Download Fact Sheet

Copper functions in plant:

  • Essential for chlorophyll production
  • Promotes seed production
  • Has a key role in nitrogen metabolism/calcium translocation
  • Required for regulation of growth and enzyme systems
  • Essential in protein synthesis
  • Catalyzes several other plant reactions

Copper can be deficient in:

  • High organic matter soils
  • Sandier textured soils
  • High soil pH
  • Low soil pH
  • Excessive phosphorus, zinc, manganese or iron levels

Symptoms:

  • Low mobility, newer buds or leaves affected
  • Malformed, discolored, poorly filled heads
  • Seed set and grain production reduced, plant stunted
  • Increased incidence of ergot, root rot, rusts, etc.
  • Stem melanosis or darkening
  • Wilting

Critical levels in plant and soil tests:

  • Plant Tissue: parts per million (ppm)
    • Critical levels at about 4-25 ppm
    • Corn: 5-20 ppm
    • Soybeans: 6-15 ppm
    • Wheat: 5-25 ppm
  • Soil Test: parts per million (ppm), 0-6”, Mehlich III extraction
    • Deficient: <0.6 ppm
    • Marginal: 0.6-1.0 ppm
    • Sufficient: >1.0 ppm

Use Ultra Yield Copper 20 for fall and pre-plant copper deficiency prevention. Ultra Yield Copper 20 is the product of choice for broadcast and band applications in a wide range of conditions.

  • Water-soluble copper at 30%. Copper 20 exceeds industry water-solubility standards.
  • Copper 20 contains 10% zinc in a highly water-soluble form.
  • Crop essential sulfur at 12%. All the sulfur in Copper 20 is in the immediately available form of sulfate sulfur.
  • Nitrogen content of 1% provides added dollar value to Copper 20 and it is in the ammonium form, which means it won’t volatilize.
  • Copper 20 delivers over 20% more granules per acre as compared to a 25% copper product. Basis 2# of actual copper per acre, Copper 20 delivers nearly 230,000 granules per acre versus 180,000 from a 25% copper source. More granules per acre results in more feeding sites, which provides for better nutrient uptake.