Across
- 2. substances that are used to kill insects
- 4. are substances that are used to control unwanted plants
- 7. more efficiet,inovative,agricutlure
- 8. control specific weed species, while leaving the desired crop relatively unscathed
- 9. a machinery for breaking up and smoothing out the surface of the soil.
Down
- 1. process by which humans use the breeding of animals and plants to selectively develop particular characteristics
- 3. machinery used to go faster through large fields
- 5. Modern agriculture increases...
- 6. any number of synthetic compound substances created specifically to increase crop yield.