Question

Which of the following elements are "Micro-nutrients"?

• A. Manganese
• B. Magnesium
• C. Calcium
• D. Copper

Answer 1

Answer: (A), (D)

The correct options are
A

Manganese

D

Copper

Elements present in the plant's body lesser than 10 mmol/kg of dry matter (matter obtained after removing the moisture and gases in the plant body) are known as micro-nutrients. They are elements that are essential for plant growth and health and are needed in very small quantities only.

Examples:

$\to$ Boron

$\to$ Copper

$\to$ Iron

$\to$ Chloride

$\to$ Manganese