Plantvoeding
Elemente vryelik beskikbaar in Moeder-Natuur
| C | Koolstof |
| H | Waterstof |
| O | Suurstof |
Elemente noodsaaklik in plantvoeding
| N | Stikstof |
| P | Fosfaat / Fosfor |
| K | Kalium / Potas |
| Ca | Kalsium |
| Mg | Magnesium |
| S | Swael / Swawel |
| Cu | Koper |
| Zn | Sink |
| Mn | Mangaan |
| B | Boor |
| Mo | Molibdeen |
| Fe | Yster |
Word dikwels as Swaarmetale geag (Veral eerste 4) of verwys na as Potensieel skadelike elemente
| Cd | Kadmium |
| Pb | Lood |
| Hg | Kwik |
| As | Arseen |
| Cr | Chroom |
| Ni | Nikkel |
| Co | Kobalt |
Elemente wat voordelig in plantvoeding kan wees
| Se | Selenium |
| Si | Silikon |
| Ni | Nikkel |
| Co | Kobalt |
