Across
- 6. Decayed remains of plant and animals.
- 8. Heat treated Mica that holds moisture.
- 9. Essential elements for plant growth.
- 10. Large particle
- 12. Ranks just behind nitrogen in the amount needed for plants.
- 14. Helps plants hold and transfer energy.
- 16. Top layer of the earths crust.
- 18. Application of fertilizers through an irrigation system
- 19. Key element in growing vegetative plant tissue.
Down
- 1. Most important nutrients for plant growth.
- 2. Act of adding plant nutrients to soil or growing medium
- 3. Small particle
- 4. structure Physical arrangement of soil particles.
- 5. Movement of atmospheric air into the soil.
- 7. When soil is compressed into a dense mass.
- 11. Growing plants in a nutrient solution.
- 13. Volcanic material that provides drainage and aeration.
- 15. Medium particle
- 17. Any material used to provide the nutrients a plant needs.