Essentail plant nutrients, chemical symbols and sources |
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| Mostly from air and water -------(non-mineral)-------- |
From Soil and or Fertilizers -----------------------(mineral)----------------------- |
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| Element | Symbol | Element | Symbol | Element | Symbol |
| Carbon | C | Nitrogen | N | Iron | Fe |
| Hydrogen | H | Phosphorous | P | Mangeanese | Mn |
| Oxygen | O | Potassium | K | Zinc | Zn |
| Calcium | Ca | Copper | Cu | ||
| Magnesium | Mg | Boron | B | ||
| Sulfur | S | Molybdenum | Mo | ||
| Chlorine | Cl | ||||
The essential plant nutrients may be grouped into three categories. They are as follows:
1. Primary nutrients - nitrogen, phosphorus and potassium
2. Secondary nutrients - calcium, magnesium and sulfur
3. Micronutrients - iron, manganese, zinc, copper, boron,
molybdenum, and chlorine
