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| Nowak, B.; Nesme, T.; David, Christophe; Pellerin, S.. |
| Nutrient management is a critical factor for organic farming. European organic regulations ban the use of artificial fertilisers. However organic farms may import nutrients coming from conventional farming. In this study we quantified the magnitude of nitrogen (N), phosphorus (P) and potassium (K) inflows from conventional farming to organic farming for 63 organic farms located in three French agricultural districts characterized by their degree of specialisation (crop productions, animal productions or both). Inflows from conventional farming amounted to 23%, 73% and 53% for N, P and K, respectively. These inflows were strongly correlated with farm production systems and positively correlated with the fertilisor demand of the farms. |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil. |
| Ano: 2013 |
URL: http://orgprints.org/26327/1/Nowak_2013_CIAG_Vol32.pdf |
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