Soil Conservation and Agriculture

2. The farming practice of growing multiple types of crops in alternating years
5. Top most layer of soil composed of 100% organic material
11. Rows of trees planted to block wind from destroying crops
14. The farming practice of flipping topsoil upside down before planting seeds
16. The loss of a soil's ability to support most life
18. Chemicals used to inhibit predation of crops
19. The farming practice of transporting water controlled amounts of water to crops
22. The increase of salt concentration in soil
25. Thin layer of soil that is made of fine, leached materials
27. The farming practice of planting crops in rows that follow the natural shape of the land
28. Large-sized soil texture

1. The mass loss of pollinating bee species
3. Layer of soil made of weathered minerals with a small mix of humus
4. Another name for the A horizon
6. Another name for the R horizon
7. Bacteria that provides the genetic code to genetically modify crops to produce a protein toxic to pest insects
8. The farming practice of growing multiple types of crops in alternating rows
9. Layer of partly weathered minerals
10. Another name for the C horizon
11. Medium-sized soil texture
12. Another name for the B horizon
13. Layer of soil that is a balanced mix of humus and minerals
15. The spread of agricultural technology to reduce malnutrition & starvation in developing nations
17. The removal of soil from an area
18. Predators of crops
20. Layer of parent material
21. Small-sized soil texture
23. The farming practice of converting hillside into flats steps to better maintain water for crops
24. Another name for the E horizon
26. Decomposed organic material in soils