A sampling scheme for estimating the mean extractable phosphorus concentration of fields for environmental regulation
| Autor: | Brus, D.J. a, *, Spätjens, L.E.E.M. b, de Gruijter, J.J. a |
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| Zdroj: | In Geoderma 1999 89(1):129-148 |
| Databáze: | ScienceDirect |
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Full Text from ScienceDirect