_, _ and ___ are known as principal nutrients for plants.

Nitrogen

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Potassium

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Phosphorous

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Carbon

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Solution

The correct options are
A Nitrogen
B Potassium
C Phosphorous
Nitrogen (N), Phosphorous (P) and Potassium (K) plays a very important role in plants growth. These three are the important nutrients among the various nutrients needed for the growth of plants. These three are known as principal nutrients.

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Similar questions

Question 31
Fill in the blanks

(a) A total of ___ nutrients are essential to plants.

(b) ___and ___ are supplied by air to plants.

(d) Soil supply ___nutrients to plants.

(e) ___ nutrients are required in large quantity and called as ___.

Question 31
Fill in the blanks

(a) A total of ___ nutrients are essential to plants.

(b) ___and ___ are supplied by air to plants.

(d) Soil supply ___nutrients to plants.

(e) ___ nutrients are required in large quantity and called as ___.

(f) ___ nutrients are needed in small quantity for plants and are called ___.

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