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

2. Nutrients
C, H, O,
Macronutrients
Micronutrients (small amounts)

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

4. Primary Nutrients N (Nitrogen) P (Phosphorus) K (Potassium)
Primary because they are
needed in large amounts

5. Secondary Macronutrients
Ca (Calcium)
Mg (magnesium)
S (sulfur)
Only moderate amounts required

6. What are the role of nutrients?

7. What makes plant look unhealthy?
Discoloration of leaves
Death of leaf tissue
Stunted growth

8. Nutrient Deficiencies
N (Nitrogen)
Chlorosis on lower leaves (decreased amount of chlorophyll, often as a result of disease or nutrient deficiency)

9. Nutrient DeficienciesP
Purplish
coloration
of leaves

10. Nutrient Deficiencies
K (Potassium)
Chlorosis
of leaves
Brown leaf edges

11. Nutrient Deficiencies
S (sulfur): yellowing of entire plant; leaves

12. How can you correct nutrient deficiency?

13. Fertilizer # (NPK)
Nitrogen increases leaf and stem growth, as well as the plant's dark green color.
Phosphate promotes root growth as well as flowering
Potassium increases disease resistance. Strong, stiff stalks are also an effect of potassium. Additionally, potassium promotes productions of sugar and improves the quality of the crop's yield

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

15. Fertilizer Types
Inorganic
Natural Organic
Synthetic Organic

16. Inorganic Fertilizer Non-living sources (minerals/rocks)
Chemically made

17. Inorganic Fertilizer Characteristics:
Nutrients in soluble (able to dissolve in water ) form and quickly made available to plants
Should not come in contact with roots
or foliage for long time period

18. Natural Organic
From plant/animal material (ex. Dried sewage sludge, Animal manure, Bone meal, cottonseed meal)
Characteristics:
N usually predominant
Nutrients are only made available to the plants as the materials decay in soil, so SLOW ACTING & LONG LASTING

19. Synthetic Organic Fertilizer
Made from carbon based materials