Across
- 4. 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
- 5. Particles that are 0.05 to 2 mm in diameter
- 7. The process of soil genesis as regulated by the effects of place, environment, and history
- 9. Soil particles that are 0.002 to 0.05 mm in diameter
- 10. The mass of solid rock that makes up Earth's crust
- 12. An area of land that is flooded with water at least sometime during the year
- 14. The physical and chemical processes that break down rocks and minerals into smaller particles
- 15. The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions
- 17. A soil conservation method in which the type of crop grown in a field is alternated from one season or year to the next
- 18. Soil particles that are less than 0.002 mm in diameter
- 20. A distinct layer of soil
- 22. Farming that does not deplete soil faster than it forms
- 23. A loss of more than 10 percent in the productivity of soil due to erosion, deforestation, overgrazing, drought, or other factors
- 25. The amount of a crop produced in a given area
- 26. The removal of soil by water, wind, ice, or gravity
- 27. The turning-over of soil before planting
- 29. Allowing animals to eat so much of the plant cover in a field or pasture that the plants cannot regrow
- 30. A soil conservation method in which sloped land is transformed into a series of steps to prevent soil erosion
Down
- 1. A chemical used to kill organisms that attack or compete with plants that humans value
- 2. The buildup of salts in the surface layers of soil
- 3. Soil that is approximately equal parts clay, silt, and sand
- 6. The artificial application of water to the soil through various systems of tubes, pumps, and sprays
- 8. A process that causes the disintegration of rocks, mineral, and soils without chemical change
- 9. A cross-section of all the soil horizons in a specific soil, from surface to bedrock, in a specific area
- 11. The practice of tillage, planting, and other farming operations performed on or near the contour of the field slope
- 13. The mixture of disintegrated rock, organic matter, water, gases, nutrients, and microorganisms that supports plant growth
- 16. The base geological Material in a particular location
- 19. A fast-growing crop that is planted in the interval between harvest and the next season's planting to prevent erosion and limit the loss of nitrogen
- 21. The prevention of loss of the topmost layer of the soil from erosion or prevention of reduced fertility caused by over usage, acidification, salinization or other chemical soil contamination
- 24. The deterioration of those characteristics of soil needed for plant growth or other ecosystem services
- 28. A soil conservation Method in which two or more crops are planted in one feld