 |
| |||
| 土壤肥力递减律｛土壤｝ | |||
| law of diminishing of soil fertility: 3 phrases in 2 subjects |
| Agriculture | 2 |
| Desert science | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips