Soil Nutrients

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Across
  1. 3. Cations that are held by soil particles can be replaced by other cations. That makes them what?
  2. 6. Clay and organic matter are _______ charged.
  3. 7. Light-colored sands have a _______ CEC
  4. 10. What are elements found in soil and used by plants in larger quantities?
  5. 12. Elements that have an electrical charge are called what?
  6. 13. Iron is a ____________
  7. 14. What are elements found in soil and used by plants in smaller quantities?
  8. 15. Soils contain a mixture of _____, silt, clay and organic matter.
Down
  1. 1. Sulfur is a __________
  2. 2. What is the addition of nutrients?
  3. 4. Clay and organic matter particles are _____ charged
  4. 5. Negatively charged ions are called what?
  5. 8. Positively charged ions are what?
  6. 9. Soil particles attract what kind of charged particles?
  7. 11. Soil particles repel what kind of charged particles?