| |||
| taux humique; teneur en humus | |||
|
humus content : 3 phrases in 2 subjects |
| Agriculture | 1 |
| Natural resourses and wildlife conservation | 2 |
| |||
| taux humique; teneur en humus | |||
|
humus content : 3 phrases in 2 subjects |
| Agriculture | 1 |
| Natural resourses and wildlife conservation | 2 |