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6.3) Mineral requirements

6.3) Mineral requirements

The plant is also in need for mineral ions to control chemical activities, grow, and produce materials.

  • Plants need a source of nitrate ions (NO3-) for making amino acids.
  • Amino acids are important because they are joined together to make proteins, needed to form enzymes and cytoplasm of the cell.
  • Nitrate are absorbed from the soil by the roots.
  • Magnesium ions (Mg2+) are needed to form chlorophyll.
  • This metallic element is also obtained in salts from the soil.

Effects of nitrate ion and magnesium ion deficiency on plant growth:

If any mineral element is lacking, or deficient, in the soil then the plant may show visible deficiency symptoms.

  • If nitrate ions are in short supply, the plant will show stunted growth.
  • The stem becomes weak.
  • The lower leaves become yellow and die.
  • The upper leaves turn pale green.
  • If the plant is deficient in magnesium, it will not be able to make chlorophyll.
  • The leaves turn yellow from the bottom of the stem upwards (a process called chlorosis).

The plant is also in need for mineral ions to control chemical activities, grow, and produce materials.

  • Plants need a source of nitrate ions (NO3-) for making amino acids.
  • Amino acids are important because they are joined together to make proteins, needed to form enzymes and cytoplasm of the cell.
  • Nitrate are absorbed from the soil by the roots.
  • Magnesium ions (Mg2+) are needed to form chlorophyll.
  • This metallic element is also obtained in salts from the soil.
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