Plant macro elements and micro

• What are the two categories of elements needed by plants?

  Macro-elements and micro-elements
• What are the macro-elements needed by plants and their roles?

  • Calcium (Ca):
  • Found in soil and inorganic fertilizers
  • Needed for cell wall formation and root development
  • Deficiency results in death of apical buds and poor root development
  • Magnesium (Mg):
  • Found in soil and inorganic fertilizers
  • Needed for formation of chlorophyll
  • Deficiency results in yellowing of young leaves
  • Phosphorus (P):
  • Found in soil and inorganic fertilizers
  • Needed for energy release and formation of nucleic acids
  • Deficiency results in poor growth and brown leaves
  • Potassium (K):
  • Found in soil and inorganic fertilizers
  • Needed for stimulating early growth and improving water use efficiency
  • Deficiency results in slow growth and yellowing of leaves
• What is the role of calcium ions in plants?

  Calcium ions are needed for the formation of cell walls and affect the permeability of cell membranes.
• What are the results of calcium deficiency in plants?

  Calcium deficiency results in the death of apical buds and poor root development.
• What is the role of magnesium in plants?

  Magnesium is needed for the formation of chlorophyll.
• What are the results of magnesium deficiency in plants?

  Magnesium deficiency results in yellowing of young leaves.
• What is the role of phosphorus in plants?

  Phosphorus is needed for the formation of nucleic acids and energy release.
• What are the results of phosphorus deficiency in plants?

  Phosphorus deficiency results in poor growth, especially in roots, and brown leaves.
• What is the role of potassium in plants?

  Potassium stimulates early growth and improves the efficiency of water use.
• What are the results of potassium deficiency in plants?

  Potassium deficiency results in slow growth and yellowing of leaves.
• What are the micro-elements needed by plants and their roles?

  • Iron (Fe):
  • Found in soil and inorganic fertilizers
  • Needed for chlorophyll formation
  • Deficiency results in yellowing of leaves
  • Sodium (Na):
  • Found in soil and inorganic fertilizers
  • Maintains balance of water and salts
  • Deficiency results in reduced growth
  • Iodine (I):
  • Found in soil and inorganic fertilizers
  • Needed for energy release in respiration
  • Deficiency results in poor growth
• What is the role of iron in plants?

  Iron is needed for chlorophyll formation.
• What are the results of iron deficiency in plants?

  Iron deficiency results in yellowing of leaves.
• What is the role of sodium in plants?

  Sodium maintains the balance of water and salts.
• What are the results of sodium deficiency in plants?

  Sodium deficiency results in reduced growth.
• What is the role of iodine in plants?

  Iodine is needed for energy release in respiration.
• What are the results of iodine deficiency in plants?

  Iodine deficiency results in poor growth.