Across
- 3. Buildup of salts in the upper soil layers from too much irrigation
- 5. Transforms steep slopes into a series of steps like a staircase
- 6. Providing water other than rain to crops
- 8. Amount of a crop produced in a given area
- 9. Planting crops to reduce erosion after a field has been harvested
- 10. Modern agriculture requires the use of these to power up machinery
- 15. Degradation deterioration of the soil characteristics needed for plant growth/other ecosystem services
- 16. Biologically-powered agriculture
- 17. Alternating crops grown in a field
Down
- 1. Rows of trees or other tall plants are planted along the edges of fields to slow the wind
- 2. Ability of a pesticide to reduce a pest's population often declines over time as the population evolves resistance to it
- 4. People realized that they could control what they grew
- 7. Planting of different crops in mixed arrangements
- 11. Plowing sideways across a hillside, perpendicular to the hill's slope to prevent erosion
- 12. Chemicals that kill organisms that attack/compete w/ plants
- 13. Most productive soil type
- 14. Raising livestock on large tracts of land