1. Adequate mineral nutrients
2. active micro-organisms
3. well drained
4. sufficiently aerated
5. enough organic matter/humus
6. good structure and texture
7. presence of earthworms
1. Adequate mineral nutrients
2. active micro-organisms
3. well drained
4. sufficiently aerated
5. enough organic matter/humus
6. good structure and texture
7. presence of earthworms
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