https://www.mrcorfe.com/KS4/Applied/Unit2/CountrysideEnvironment/Agriculture/MineralSalts.php
2nd Nov '25
Mineral Salts
Mineral salts are essential for the development and function of plants:
Mineral Salt
Use
Symptoms of lacking
Magnesium
Forms part of the chlorophyll
Leaves turn pale green or yellow. Roots Normal
Nitrogen
Required to make proteins, which are used for growth
Leaves Pale. Lower leaves dead. Roots only slightly Affected. Stunted Growth
Phosphorus
Needed for the plants DNA
Purple Leaves. Roots Poorly Developed
Potassium
Helps the plant produce fruit
No Fruit. Dead edges and spots on leaves. Normal Roots