Test review

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Across
  1. 2. aids in root formation & disease resistance
  2. 4. solid, unweathered rock layer
  3. 5. a form of potassium in fertilizer
  4. 7. 0-6 on the pH scale
  5. 9. soil that is out of place
  6. 10. excess nutrients in waterways increase growth of ___
  7. 13. helps plants tolerate stress and disease
  8. 14. the amount of salt found in the soil
  9. 16. fully decomposed organic matter. Adds nutrients to soil
  10. 18. as bacteria break down dead organisms in waterways they deplete the soil of dissolved _____
  11. 20. a soil texture composed of sand, silt, and clay
  12. 22. add these compounds to decrease pH
  13. 24. smallest mineral particle in soil. Easily compacted
  14. 26. buildup of excess nutrients in waterways
  15. 27. add this to soil to increase pH
  16. 29. needed by plants in smaller amounts
  17. 31. 7 on the pH scale
Down
  1. 1. proportion of sand, silt, & clay in soil
  2. 3. a form of phosphorus in fertilizer
  3. 6. the movement of air into the soil
  4. 8. a deficiency that causes blossom end rot
  5. 9. OM is made of the _____remains of living things
  6. 11. largest mineral particle in soil. Promotes drainage
  7. 12. needed by plants in large amounts
  8. 15. upper, nutrient rich soil layer
  9. 17. when soil is compressed into a dense mass
  10. 19. a lack of shortage of
  11. 21. surface soil layer rich in decomposed OM
  12. 23. 8-14 on the pH scale
  13. 25. another name for layers of soil
  14. 28. used to make chlorophyll and for growth
  15. 30. medium sized mineral soil particle