Soil Revision

1. An agricultural method where crops are planted without disturbing the soil through traditional plowing.
5. Garden boxes or beds with walls that hold soil. Better drainage, soil control, and easier access.
6. Where individual soil particles, particularly clay, clump together to form larger aggregates.
7. Soil saturated with water
9. Unlined drainage system used in clay soil.
11. Process by which plants make food.
13. Symbol P on periodic table.
15. Largest soil particles very good aeration but loses water quickly.
17. Equipment used to plant seeds directly into unploughed soil.
19. Air levels in the soil pore space.
21. Smallest soil particle. This soil has small pore spaces and can be cold/wet.
23. Cluster of soil particles
26. Process that living organisms make energy.
28. Nutrient involved with seedling development and plant growth, tolerance to stress and disease resistance.
29. A man made soil clump cause by ploughing or such.
30. A vital nutrient for plant/leaf growth.
33. The essential elements found in soil that plants absorb to grow and reproduce.
36. Māori concept that encompasses hospitality, generosity, and care.
37. The empty space between particles.

2. Perforated pipes laid underground to collect and remove excess water.
3. The amount of a crop or product that can be grown per unit of land.
4. Māori concept of guardianship or management, especially of an environmental area or resource.
8. When soil pore spaces are reduced significantly.
10. These benefit soil by improving its structure through aeration and drainage via burrowing.
12. Adding this to soil will increase nutrients, earthworms, water retention and aeration.
14. Water moving down into the soil
16. Naturally formed soil aggregate
18. Ideal soil type
20. Māori concept about a life force or essence.
21. rotation Using different crops on the same land that use or add different nutrients in the soil.
22. Gas used in respiration (making energy.
24. Adding this to soil raises the pH and clumps clay soil together.
25. A large farming tool used to cut, turn over, and loosen the top layer of soil.
27. Liquid waste that is applied to the soil, often for irrigation or as a fertilizer.
31. Helps stop water loss, weeds, and erosion of soil particles.
32. Mechanical break up of the soil to prepare it for crop production.
34. Medium soil particle size, good pore space, aeration and drainage.
35. Used for surface tillage to break up soil clumps, level the ground, and create a fine seedbed.