Mineral salts. Principally nitrates and phosphates.
Examples: chlorides, phosphates, nitrates, sulfides, vanadates etc.
All the plants need fertilizers which are salts.
They can be silicates or vanadates, nitrates or chlorides, carbonates or arsenides etc.
The useful mineral nutrients for plants is NITRATES and PHOSPHATES.
Salts are absorbed by the roots.
Potassium mineral salts are used for making some of the enzymes the plants don't need. Potassium mineral salts are used for making some of the enzymes the plants need. Or cheese?......
Plants extract the needed salts from soils.
The Mineral Salt Needed to make proteins in plants are *NITRATES* :)
Plants absorb mineral salts from soils and waters.
Nitrates are salts of the nitric acid.
nitrates are chemically salts. nitrates Can be used as fertilizers.