agriculture & forestry

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Across
  1. 3. No pesticides used
  2. 8. Clearance of a forest
  3. 9. 12 good crops
Down
  1. 1. A field with a single crop
  2. 2. Prevent illnesses in livestock
  3. 4. Where 50% of livestock is kept
  4. 5. O horizon
  5. 6. Bacteria resistant
  6. 7. Prevented by mulching