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Primer Cu

Ultimate Copper Seed Nutrition

ANALYSIS (0-22-3 WITH 3.4% ZN & 3.4% CU)

What is It?

  • Seed dressing for application onto cereals seed prior to seeding.
  • Unique formulation with high concentrations of Phosphorus, Potassium, Zinc and Copper.
  • The Gel Rheology Technology™ keeps the highly concentrated product suspended and helps with seed adhesion and drying out.
  • The product is available in 10L jugs, 450L and 1000L IBC’s.

When & Why Use It?

  • In areas where Copper deficiency (‘pig tailing’, ergot, lodging) is prevalent.
  • Cold, wet conditions and when seeding into a dry soil.
  • High pH soils; soils with high N levels; sandy and light-textured soils.

What to Expect?

  • Primer Cu contributes to stronger roots and stems.
  • Primer Cu maximizes Copper uptake early in the growing season as Copper is placed in close proximity to the growing root tips.
  • Primer Cu helps prevent deficiency symptoms (‘pig tailing’, lodging and exposure of ergot).
  • Primer Cu corrects deficiency, preserves yield and prevents maturity delays.

Size Options



Application Guidelines

  • Cereals: 3 mL/Kg of seed or 122 bu per 10L jug; 410L per 5000 bushel bin.
  • Primer Cu is NOT recommended on pulses, especially with liquid inoculant.
  • Primer Cu can be used alone or in combination with other seed treatments. Check the best option for your targeted combination (see compatibility charts).
  • Primer Cu can be diluted with water for more uniform coverage onto the seed. Dilution improves the dry down time.
  • Primer Cu requires the use of high-grade steel equipment and plumbing.
  • It is highly recommended to wash the seed treatment equipment with water after use.


2016 Heavy clay – Manitoba
2010 Improved early season root development with Primer Cu® (Alberta, 2010)
Left: UTC, Right: Primer Cu®
Left: UTC, Right: Primer Cu®
2009 Lab, Oak Bluff
Left: UTC, Right: Primer Cu®

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