1. Plant Nutrition vs. Plant Fertilization
From foukeffa.org
Written by Jana Shumaker
Ag Student Texas A&M
GA Ag Ed Curriculum Office
To accompany the
Georgia Agriculture Education Curriculum
Course Unit 9
July 2001

3. Plant Nutrition Vs Plant Fertilization
Availability and type of chemical
elements
in plant
Fertilization:
Adding nutrients to soil

4. Nutrients
16 elements:
C, H, O,
Macronutrients
Micronutrients

5. Macronutrients
Nutrients required in large quantities N P K Ca Mg S

6. Primary Nutrients N P K Primary because they are
needed in large amounts

7. Secondary MacronutrientsCa Mg S
Only moderate amounts required

8. Micronutrients (Nutrients needed in small quantities)Mo Na Zn B Cu Cl Fe Mn

9. How to Remember???? C HOPKNS Ca Fe Mg (C. Hopkins café might good)
Remaining nutrients:
B, Cu, Cl, Mn, Mo, Zn

10. What are the role of nutrients? (refer to handout)

11. What makes plants look Unhealthy?
Discoloration of leaves
Death of leaf tissue
Stunted growth

12. Examples
Discoloration of
Leaves

13. Nutrient Deficiencies
Chlorosis on
lower leaves

14. Nutrient Deficiencies
Chlorosis of
leaves

15. Nutrient DeficienciesP
Purplish
coloration
of leaves

16. Nutrient DeficienciesK
Chlorosis
of leaves
Brown leaf edges

17. Nutrient DeficienciesK
Chlorosis
of leaves
Brown leaf edges

18. Nutrient Deficiencies
S: yellowing of entire plant; leaves

19. How can you correct nutrient deficiency?

20. Fertilizer

21. What is fertilizer? Any material added to the soil to
provide nutrients that will increase
growth, yield, or nutritional value of
the plants.

22. Fert. Classifications
Inorganic
Natural Organic
Synthetic Organic

23. Inorganic Fert.
Non-living sources (minerals/rocks)
Chemically made

24. Inorganic Fert. Characteristics: Nutrients in soluble form
and quickly made available to plants
Should not come in contact with roots
or foliage for long time period

25. Natural Organic From plant/animal material Characteristics:
N usually predominant
Nutrients are only made available to the plants as the materials decay in soil, so SLOW ACTING & LONG LASTING

26. Natural Organic Examples: Animal manure Cottonseed meal Soybean meal
Dried blood
Dried ground/sewage sludge
Bone meal

27. Synthetic Organic Fert.
Made from carbon based materials

29. Sources of Info
Various pictures used in this presentation were found on various internet sites.