Category: Science - Earth/Agricultural/Farming
Natural & Artificial Sewage Treatment
III. THE SUBSOIL: 1. Mechanical structure of soil 41 2. Permeability of soil 42 3. Water capacity of soil 42 4. Water-retentive power of soil 43 5. Capillary movements of water in soil 44 6. Temperature of soil 45 7. Subsoil air 47 8. Movements of water in soil 47 9. Micro-org...