Long-Term Soil Productivity: genesis of the concept and principles behind the program.
| Autor: | Powers, Robert F.1 bpowers@fs.fed.us |
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| Zdroj: | Canadian Journal of Forest Research. Mar2006, Vol. 36 Issue 3, p519-528. 10p. 1 Diagram, 3 Charts, 1 Map. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
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