Across
- 2. -a distinct layer of soil
- 5. -a soil conservation method in which two or more crops are planted in one field
- 6. -the mixture of disintegrated rock, organic matter, water, gases, nutrients, and microorganisms that supports plant growth
- 8. -allowing animals to eat so much of the plant cover in a field or pasture that the new plants cannot grow
- 9. -soil particles that are 0.002 to 0.05mm in diameter
- 10. -soil particles that are 0.05 to 2mm in diameter
- 11. -a fast-growing crop that is planted in the interval between harvest and the next season's planting
- 15. -the deterioration of those characteristics of soil needed for plant growth or other ecosystem services
- 16. -soil particles that are less than 0.002 mm in diameter
- 17. -one or more rows of trees or other tall, perennial plants planted along the edge of a field to prevent wind erosion; also called a windbreak
- 19. -a soil conservation method in which the type of crop grown in a field is alternated from one season or year to the next
- 21. -a loss of more than 10 percent in the productivity of soil due to erosion, deforestation, overgrazing, drought, or other factors
- 22. -soil that is approximately equal parts clay, silt, and sand
- 23. -using a source other than precipitation to water crops
Down
- 1. -the turning over of soil before planting
- 3. -a cross section of all the soil horizons in a specific soil, from surface to bedrock, in a specific area
- 4. -a chemical used to kill organisms that attack or compete with plants that humans value
- 7. -the base geological material in a particular location
- 12. -a soil conservation method in which furrows are plowed across a hillside, perpendicular to its slope
- 13. -the physical and chemical processes that break down rocks and minerals into smaller particles
- 14. -the buildup of salts in the surface layers of soil
- 18. -a soil conservation method in which sloped land is transformed into a series of steps to prevent soil erosion
- 20. -the mass of solid rock that makes up Earth's crust
