The influence of woody plants and livestock grazing on grass species composition, yield and soil nutrients in the Middle Awash Valley of Ethiopia
| Autor: | Abule, E., Smit, G.N., Snyman, H.A. * |
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| Zdroj: | In Journal of Arid Environments January 2005 60(2):343-358 |
| Databáze: | ScienceDirect |
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