Farming sustainability

3. food grown without chemicals, antibiotics, hormones is considered to be?
5. a chemical to stop the growth of weeds competing with crops
7. a chemical to control pests
11. a system that includes a legume crop that adds nitrogen to the soil.
13. a type of test to check for soil acid levels.
14. a type of conservation farming technique for crop production
15. a strategy to reduce water use which slows down water use (2 words)
16. occurs when plants take up nutrients and release acidic waster from their roots

1. a chemical to improve soil and crop yields
2. a product that is added to the soil to lower PH levels
4. caused by rising ground water
6. a form of technology used to determine aerial spraying flight paths to ensure correct amount of chemicals is supplied.
8. clearing the natural landscape and wind and water can cause soil to...
9. a strategy of planting crops across the natural land form.
10. a strategy of applying chemical to crops low to the ground and when there is little wind.
12. a problem with irrigation and open channels