Essential Nutrients and Ionic Forms

From soil, water, and air

Carbon C0₃^-2, HCO₃ , CO₂

Hydrogen H⁺, OH^-

Oxygen O₂, OH^-

Primarily from soil: macro or major, secondary, and micrometabolic or trace elements

Nitrogen NO₃^- , NH₄⁺

Phosphorus HPO₄^-2, H₂PO₄^-

Potassium K⁺

Calcium Ca⁺²

Magnesium Mg⁺²

Sulfur SO₄^-2

Iron Fe⁺² , Fe⁺³

Copper Cu⁺² , Cu⁺

Zinc Zn⁺²

Manganese Mn⁺² , MnO₄^-

Molybdenum HMoO₄^- , MoO₄^-2

Boron H₃BO₃, B₄O₇^-2

Chlorine Cl^-

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