Difference between Macro-Elements and Micro-Elements

The upcoming discussion will update you about the differences between Macro-Elements and Micro-Elements.

Difference # Macro-Elements:

1. They occur in plants in easily detectable quantities.

2. The concentration of a macro-element per gm. of dry matter is at least 1 mg or 1000 µg/gm. of the dry matter.

3. They build up the plant body and different protoplasmic constituents.

4. Some macro-elements accumulate in cell sap and take part in developing osmotic potential.

5. Turgor movements are mostly caused by in­flux & efflux of potassium, a macro-element.

6. They do not become toxic in slight excess.

Difference # Micro-Elements:

1. They occur in plants in very small amounts.

2. The concentration of a microelement is equal to or less than 0.1 mg/gm. of dry matter.

3. Microelements do not have such a role.

4. Microelements, being found in traces only, have no significant role in the development of osmotic potential.

5. None of the microelements have any such function.

6. Microelements are toxic in slight excess.