Which of the following is not a macro-nutrien | vedclass

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Question

(D) Essential elements are classified into two categories based on their quantitative requirements: macro-nutrients and micro-nutrients.Macro-nutrient

Vedclass · Accepted Answer

$Zn$

Vedclass · Answer

(D) Essential elements are classified into two categories based on their quantitative requirements: macro-nutrients and micro-nutrients.Macro-nutrients are generally present in plant tissues in large amounts (in excess of $10 	ext{ mmol kg}^{-1}$ of dry matter).These include $C, H, O, N, P, S, K, Ca,$ and $Mg$.Micro-nutrients or trace elements are needed in very small amounts (less than $10 	ext{ mmol kg}^{-1}$ of dry matter).These include $Fe, Mn, Cu, Mo, Zn, B, Cl,$ and $Ni$.Since $Zn$ is required in small amounts, it is classified as a micro-nutrient, not a macro-nutrient.

Which of the following is not a macro-nutrient?

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