Across
- 1. Soil-living microbes that turn nitrogen gas into food for plants
- 4. Element that plants need to survive represented by the symbol K in NPK fertiliser
- 8. A compound of nitrogen that plants like a little of
- 10. Gardeners add this sediment to clay soil to make it more loamy
- 11. An animal that lives in the soil and helps to recycle nutrients
- 12. Plants need lots of this element, but they can get it easily from the air
- 14. Animal poo used for fertilising soil
- 15. Plants use nitrogenous compounds to make these protein forming compounds (5,5)
Down
- 2. Decayed organic material used as a plant fertiliser - gardeners often keep a pile of this
- 3. A compound of nitrogen that plants love
- 5. Without enough nitrogen a plants growth will be this
- 6. Plants need lots of this element which they can obtain by splitting water
- 7. To break down into smaller molecules
- 9. Without this micronutrient, plants leaves will be yellowed
- 13. Plants cannot get this element from the air