Farming machines or parts of them

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Across
  1. 3. harvester
  2. 5. tool for turning soil over
  3. 8. selects the speed of the vehicle
  4. 10. this gathers hay together
  5. 11. tool for loosening ground
  6. 13. tool for applying pesticides of fertilizer
  7. 15. usually this is the tractors energy source
Down
  1. 1. mechanism used to attach farming equipment
  2. 2. machine to cut grass or crops like hay
  3. 4. bales come out here
  4. 6. machine for seeding
  5. 7. 4 of these are under tractor
  6. 9. piston glides inside
  7. 11. used for transporting grains
  8. 12. Spiral screw used to move grain or other materials
  9. 14. power out take in tractor