плодородие почв : 41 phrases in 12 subjects |
Agriculture | 6 |
Agrochemistry | 2 |
Ecology | 9 |
Economy | 4 |
Forestry | 1 |
General | 5 |
Makarov | 4 |
Name of organization | 1 |
Natural resourses and wildlife conservation | 3 |
Soil science | 4 |
Technology | 1 |
United Nations | 1 |