Across
- 2. The swapping of ions between free cations and the soil particles
- 4. A soil with a pH higher than 7
- 7. The smallest particles of clay and humus
- 10. The amount of cation exchange a soil can perform
- 11. This is done to raise the pH of a soil
Down
- 1. The chemical composition of ground limestone
- 3. A soil with a pH lower than 7
- 5. These ions increase the pH of a soil
- 6. Clustering together of soil particles in aggregates
- 8. These ions lower the pH of a soil
- 9. A measure of the acidity of a soil