1. Good Morning! There will be a short quiz on Chapter 25.1-25.2!
Please put up your dividers when you come into the classroom.
There are 6 MC questions – this should take you about 5-8 minutes.

2. What are we doing today? Project Tips & Modifications
Why study plant nutrition?
Lecture: Plant Nutrition
Lab (final work period): Monocot vs. Eudicot
Hand in drawings and questions by end of class.

3. Project Tips & Modifications
How to germinate seeds quicker!
Changes to project outline:
No more in-class presentation (submit video recording by OR option to do after school)
No more peer evaluations
CH. 25 & 26 TEST on Thursday, April 24

4. Why study plant nutrition?

5. Why study plant nutrition?

6. Soil, soil, everywhere...
“Be it deep or shallow, red or black, sand or clay, the soil is the link between the rock core of the earth and the living things on its surface. It is the foothold for the plants we grow. Therein lies the main reason for our interest in soils.”
--- Roy W. Simonson,
USDA Yearbook of Agriculture, 1957

7. How do we determine essential elements to plant growth?

8. What are some benefits plants get from soil?
(Brainstorm with partner.)
Soil fertility
Where are nutrients most often leached?
How are loam and humus different?

9. How are nutrients made available to plants?
Ion exchange
Only positive ions – no comparable mechanism for negative ions
What happens then to nutrients like nitrate (NO3-) and sulfate (SO42-)?

10. Organic vs. Inorganic Fertilizers

11. What do you remember about the nitrogen cycle?

12. Mycorrhizae & RhizobiaN2

13. Carnivorous & Parasitic Plants
HEMI
HOLO

14. Lab: Monocot vs. Dicot No need to calculate field diameter.
Complete drawings (1/4 pie).
Complete questions.
Hand-in at end of class.
Next Class:
Read Chapter 25.3