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