Crop Plants

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Across
  1. 3. what plants require a range of to grow well that can also be replaced by fertilisers
  2. 8. replace mineral ions needed by plants
  3. 9. kill insect pests
Down
  1. 1. type of fertiliser often applied to soil as dry granules or can be sprayed in liquid form
  2. 2. type of fertiliser commonly used by farmers such as compost and manure
  3. 4. lack of this causes weak growth of crops and yellowing of leaves in plants
  4. 5. allow enzyme reactions to take place and produce ATP in respiration
  5. 6. kill off unwanted insects and weed species decreasing damage done to plants
  6. 7. needed to make DNA and cell membranes