2. 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 01462 Unit 9 July 2001

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

5. Nutrients 16 elements:  C, H, O,  Macronutrients  Micronutrients

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

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

8. Secondary Macronutrients  Ca  Mg  S Only moderate amounts required

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

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

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

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

13. Examples Discoloration of Leaves

14. Nutrient Deficiencies  N  Chlorosis on lower leaves

15. Nutrient Deficiencies NN  Chlorosis of leaves

16. PP  Purplish coloration of leaves Nutrient Deficiencies

17.  K  Chlorosis of leaves  Brown leaf edges Nutrient Deficiencies

18.  K  Chlorosis of leaves  Brown leaf edges

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

20. How can you correct nutrient deficiency?

21. Fertilizer

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

23. Fert. Classifications  Inorganic  Natural Organic  Synthetic Organic

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

25. 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

26. 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

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

28. Synthetic Organic Fert.  Made from carbon based materials

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