Food resources

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Across
  1. 2. chemicals added to make soil fertile
  2. 4. rearing of fishes in sea water
  3. 7. a category of milch animal
  4. 11. a method of crop improvement
  5. 12. unwanted plants in crop field
  6. 13. culturing of aquatic animal for food
Down
  1. 1. a manure prepared with the help of earthworm
  2. 3. they cut,bore or suck into the plants
  3. 5. chemical used to kill unwanted plants
  4. 6. used by bee keepers
  5. 8. a micronutrient
  6. 9. a weed plant
  7. 10. a macronutrient