Mineral Nutrition

Macro and micronutrients and their role


  • Macronutrients are C, H, O, N, K, S, Ca, Fe, Mg, P, which must be supplied in the concentration of 1-10 μgL-1/10m mol Kg-1 of dry matter
  • Micronutrients are Cu, Zn, Mn, B, Cl, Mo, Ni, which must be supplied in the concentration of 0.1 to 1.0 μgL-1/ 10m mol Kg-1 of dry matter
  • The nutrient which satisfies a specific nutrient requirement of specific plants is called beneficial nutrient.
  • C; H; O; N – Biomolecules
  • Mg; P – Energy
  • Mg; Zn – Enzymes
  • K – Osmotic potential; stomatal movement
  • Na – Halophytes
  • Si – Grasses
  • Co – Leguminous plants
  • Se – Astragalus
  • Ca, K – Antagonistic role
  • Cofactors – Mg, Fe, Ca, Zn, Cu, K, Mn, Mo
  • Nitrogen (NO3−): Role in Proteins, Nucleic acids, Vitamins and Plant hormones.

Part-1: View this video for the topic from 0:10 to 5:53

Part-2: View this video for the topic from 0:07 to 12:34

Part-3: View this video for the topic from 0:07 to 13:45

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