The relationship between milk production and farm-gate nitrogen surplus for the Waikato region, New Zealand
| Autor: | Beukes, P.C., Scarsbrook, M.R., Gregorini, P., Romera, A.J., Clark, D.A., Catto, W. |
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| Zdroj: | In Journal of Environmental Management 2012 93(1):44-51 |
| Databáze: | ScienceDirect |
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