1. Q. Define nutrition .
Nutrition

2. • The sum total of all the processes involved in
the taking in and utilisation (use) of elements
by which…..

3. • Growth
• Repair
• Maintenance
of activities in the organism are accomplished
(completed)

4. Nitrogen
• In proteins

5. Phosphorus
• In ATP, nucleic acids.

6. Magnesium
• In chlorophyll

7. Iron
• In cytochrome

8. • SOIL

9. Describe the role of different elements
in plant nutrition
• Carbon
• Hydrogen
• Oxygen
• Nitrogen
• Phosphorus
• Magnesium
• Iron
• Potassium

10. • All of these elements plants need for synthesis
of organic molecules.

11. Deficiency of elements
• Can cause serious diseases with clear
symptoms.

12. Nitrogen Deficiency
• Stunted growth (stopped abnormally in
growth or development. )
• Strong chlorosis (lack of chlorophyll)
particularly in older leaves.
•

13. Phosphorus Deficiency
Causes stunted growth of roots

14. Phosphorus Deficiency
poor growth
Fruits are small and acid tasting.

15. Potassium Deficiency
• Leaf margins get yellow and brown.
• Premature death of plants

16. Iron Deficiency
• Symptoms include leaves turning yellow or
brown in the margins between the veins
which may remain green, while young leaves
may appear to be bleached. Fruit would be of
poor quality and quantity. Any plant may be
affected, but raspberries and pears are
particularly susceptible