Question

Which element among the following is required in comparatively least quantity for the growth of plant?

• A. $Zn$
• B. $N$
• C. $P$
• D. $Ca$

Answer 1

The correct option is A $Zn$

Plants require seventeen essential mineral elements. The essential mineral elements can be grouped into two classes based on the amount required. Macronutrients are the minerals required in large amount. The important macronutrients for plants are carbon, hydrogen, oxygen, nitrogen, phosphorous, sulphur, magnesium, potassium, calcium.

The micronutrients required in lesser amount are zinc, copper, iron, manganese, nickel, molybdenum, chlorine and boron.