Operational nitrogen fertilizer management in dairy farming systems: identification of criteria and derivation of fertilizer application rates.
| Autor: | Vellinga, Th.V.1 rene.schils@wur.nl, André, C.2, Schilst, R.L.M.2, Oenema, O.3 |
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| Zdroj: | Grass & Forage Science. Dec2004, Vol. 59 Issue 4, p364-377. 14p. |
| Databáze: | Academic Search Ultimate |
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