Citrus and deciduous fruit

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Across
  1. 2. one of the peach tree varieties
  2. 5. main orange tree variety
  3. 8. a fruit with a paper-like core
  4. 9. a fruit with a white pith in the middle
  5. 10. losing leaves in winter
  6. 12. used to prune small branches
  7. 15. e.g cherry
Down
  1. 1. most common peach tree rootstock
  2. 3. nitrogen, pottasium and_____
  3. 4. ____ spirits are used to sanitise equipment
  4. 6. rootstock in citrus tree production
  5. 7. fertilisers should be applied along here
  6. 11. fertilisers should be applied in autumn and____
  7. 13. a fertiliser with NPK is a ___ fertiliser
  8. 14. zinc should be applied as a ____