Individual Tests  Form

P — Phosphorus
K — Potassium
N — Nitrogen
S - Sulfur
Zn — Zinc
Inorganic N (Ammonia)
*These tests conform to IA, MN, and SD
*Consult us directly for unlisted services.
*Tax not included

Available series Form

Essential Series - $45

  • K — Potassium
  • S — Sulfur
  • Zn — Zinc
  • N — Nitrogen
  • P — Phosphorus
  • Inorganic N (Ammonia)

Phone: 605-271-9237 Address: 3600 S Minnesota Ave # 200, Sioux Falls, SD 57105

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