Across
- 3. particles between sand and clay sizes
- 6. a micronutrient
- 8. positively charged ions in the soil water solution
- 9. large particles of soil
- 11. smallest particles of soil
- 12. adds organic matter to the soil
- 13. can help to raise pH
- 16. can kill beneficial soil organisms
- 20. having a low pH
- 23. a natural medium for plant growth
- 24. soil chemicals that are beneficial to plants
- 25. compound found in commercial nitrogen fertilizers
- 26. cover crops that have root nodules for fixing nitrogen
- 27. derived from living things
Down
- 1. a soil nutrient that is often excessive
- 2. reduces pore space
- 4. how to find out what your soil needs
- 5. a nutrient important for plant health
- 7. caused by too much phosphorus run-off
- 10. an amendment that contains calcium and magnesium
- 14. nutrient not measured in the soil test
- 15. the part of soil that comes from rock
- 17. a compound that is harmful to soil
- 18. destroys soil structure
- 19. a tiny wormlike organism living in the soil
- 21. soil flora
- 22. can raise the water table
- 23. can help to lower pH