Across
- 3. organic matter helps this stay in sandy soils
- 4. in this soil type, organic matter is helpful in making a seedbed
- 5. released by organic matter
- 8. a crop that can leave high levels of organic matter
Down
- 1. soil with more than 25% organic matter
- 2. drilling establishment method, helps keep organic matter (6/8)
- 4. crops that reduce organic matter, especially if the plough is used
- 6. method of cropping, can be used to add organic matter
- 7. liquid waste, type of organic matter