Tamilnadu BoardEnglish MediumSTD 11BIO BOTANYMineral Nutrition3 Marks
Question
Distinguish between macro and micro nutrients?
✓
Answer
Macro nutrients:
- Excess than $10 mmole ^{-1} Kg ^{-1}$ in tissue concentratioh or 0.1 to 10 mg per gram of dry weight.
- eg: C, H, O, N, P, K, Ca, Mg and S.
Micro nutrients:
- Less than 10 mmole $Kg ^{-1}$ in tissue concentration or equal or less than 0.1 mg per gram of dry weight.
- eg: $Fe , Mn , Cu , Mo , Zn , B , Cl$ and Ni .
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