Iron Sulfate 20

Iron Sulfate 20 is a low-analysis, highly water-soluble, uniformly granulated iron fertilizer, specifically designed to assist in turf care, plant growth, and maximizing yield.

Iron functions in plant Download Fact Sheet

  • Essential for chlorophyll production
  • Promotes energy transfers
  • Required in photosynthesis
  • Part of the enzyme system needed for plant respiration
  • Required for the formation of some proteins
  • Promotes healthy growth in plants

Iron can be deficient in

  • Compacted soils with poor drainage
  • High soil pH
  • Excessive phosphorus, calcium, zinc, manganese or copper levels

Symptoms

  • Plants are generally spindly and stunted
  • Plants may show chlorosis of the younger, upper leaves while veins may remain green
  • Progresses to older leaves when severe
  • Lime induced chlorosis on high pH soils
  • Soybeans, corn, sorghum, rice, ornamentals are most sensitive

Critical levels in plant and soil tests

  • Plant Tissue: parts per million (ppm)
    • Critical levels at about 25-250 ppm
    • Corn: 25-250 ppm
    • Beans: 50-350 ppm
    • Wheat: 20-200 ppm
  • Soil Test: parts per million (ppm), 0-6”, Mehlich III extraction
    • Deficient: <5 ppm
    • Marginal: 5-10 ppm
    • Sufficient: >10 ppm

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

  • Highly water-soluble iron at 75%. Iron Sulfate 20 exceeds industry water-solubility standards.
  • Crop essential sulfur at 13%. All the sulfur in Iron Sulfate 20 is in the immediately available form of sulfate sulfur.
  • Nitrogen content of 2% provides added dollar value to Iron Sulfate 20 and it is in the ammonium form, which means it won’t volatilize.
  • Iron Sulfate 20 delivers 20% more granules per acre as compared to a 50% iron product. Basis 5# of actual iron per acre, Iron Sulfate 20 delivers nearly 575,000 granules per acre versus less than 230,000 from a 50% source. More granules per acre results in more feeding sites, which provides for better nutrient uptake.