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| гумусовая глина | |||
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| поглощающий комплекс (почвы) | |||
| поглощающий комплекс | |||
| органо-минеральный комплекс | |||
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humus clay : 6 phrases in 4 subjects |
| Agrochemistry | 1 |
| General | 1 |
| Natural resourses and wildlife conservation | 1 |
| Soil science | 3 |
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