Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q37 (NDA-I/2012) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Plant anatomy physiology Answer Verified

Which of the following is not a micro-nutrient for a plant?

Result
Your answer: —  Â·  Correct: B
Explanation

Essential plant nutrients are classified into macronutrients and micronutrients based on the quantity required for growth. Macronutrients are needed in larger amounts and include primary nutrients (Nitrogen, Phosphorus, Potassium) and secondary nutrients (Calcium, Magnesium, and Sulfur) [2]. Magnesium (Mg) is specifically categorized as a secondary macronutrient essential for chlorophyll formation. In contrast, micronutrients are required in trace amounts, typically comprising less than 0.025% of dry plant tissue. The standard list of micronutrients includes Iron (Fe), Manganese (Mn), Molybdenum (Mo), Zinc (Zn), Copper (Cu), Boron (B), Chlorine (Cl), and Nickel (Ni) [2]. Since Iron, Molybdenum, and Manganese are all confirmed micronutrients, Magnesium is the only element in the options that is classified as a macronutrient.

Sources

  1. [2] Indian Economy, Nitin Singhania .(ed 2nd 2021-22) > Chapter 9: Agriculture > FERTILISERS > p. 302
  2. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 25: Agriculture > z. Micronutrientsl > p. 363
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
75%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-II · 2024 · Q88 Relevance score: 7.43

Which one among the following is not a micronutrient for plants?

IAS · 1996 · Q101 Relevance score: 5.49

Which one of the following is not an essential micronutrient for plants ?

CDS-II · 2007 · Q45 Relevance score: 3.91

Which of the following nutrients is not a structural component of the plant

CDS-I · 2008 · Q56 Relevance score: 3.87

Which of the following nutrients is not a structural component of the plant ?

CAPF · 2022 · Q17 Relevance score: 3.56

Depending on the requirements, plant nutrients are classified as micronutrients and macronutrients. Which one of the following is an example of a macronutrient?