Across
- 2. substance plants need to grow
- 3. medium sized soil particle
- 4. land left unplanted to rest
- 7. seed made by crossing two parents
- 8. unwanted plant in a crop field
Down
- 1. amount of crop produced
- 3. check fields for pests and problems
- 4. material added to boost plant nutrients
- 5. soil with sand silt and clay
- 6. measure of soil acidity or alkalinity