Long-term nitrate loss along an agricultural intensity gradient in the Upper Midwest USA
| Autor: | Syswerda, S.P., Basso, B., Hamilton, S.K., Tausig, J.B., Robertson, G.P. |
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| Zdroj: | In Agriculture, Ecosystems and Environment 1 March 2012 149:10-19 |
| Databáze: | ScienceDirect |
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