Soil

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Across
  1. 4. Tiny spaces in the soil that hold water and oxygen (5)
  2. 5. Natural soil fertiliser from animal wastes (6)
  3. 9. Soil condition characterised by how particles clump together (8)
  4. 11. Essential nutrient often linked with leaf growth (8)
  5. 13. Process by which plants make glucose (12)
  6. 14. Nutrient often difficient in acidic soils, important for plant growth (7)
  7. 15. Process to increase air flow in soil (8)
  8. 16. Practice of chaging crops in a cyclic manner to imrove soil nutrients (12)
  9. 18. The size of soil paticles determines this (7)
Down
  1. 1. Nutrient often deficient in acidic soils, important for plant growth (9)
  2. 2. Maori practice that reflects respect and care for the soil
  3. 3. Soil amendment made from decomposed organic material (5)
  4. 6. Water movement into and through the soil (11)
  5. 7. Soil organisms that fix nitrogen from the air (8)
  6. 8. Soil nutrient essential for root development (10)
  7. 10. Process where water moves from soil to air through the plants (13)
  8. 12. Physical arrangementof soil particles (9)
  9. 17. Soil test measure of acidity or alkalinity (2)