Data/hora: 02/06/2024 16:26:27

Provedor de dados: 	21	
País: 	Germany	
Título: 	To what extent does organic farming rely on nutrient inflows from conventional farming?	
Autores: 	Nowak, Benjamin; Nesme, Thomas; David, Christophe; Pellerin, Sylvain.	
Data: 	2013	
Ano: 	2013	
Palavras-chave: 	Production systems Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover Farm nutrient management.	
Resumo: 	Organic farming is increasingly recognized as a prototype for sustainable agriculture. Its  guidelines ban the use of artiﬁcial fertilizers. However, organic farms may import nutrients  from conventional farming through material exchanges. In this study, we aimed at estimating  the magnitude of these ﬂows through the quantiﬁcation of nitrogen, phosphorus and potassium  inﬂows from conventional farming to organic farming. Material inﬂows and outﬂows were  collected for two cropping years on 63 farms. The farms were located in three French  agricultural districts distributed over a gradient of farming activity deﬁned by both the  stocking rate and the ratio of the farm area under arable crops. Our results showed that on  average, inﬂows from conventional farming were 23%, 73% and 53% for nitrogen,  phosphorus and potassium, respectively. These inﬂows were strongly determined by the farm  production systems. However, for farms similar in terms of production systems, the inﬂows  also depended on the local context, such as the proximity of organic livestock farms: the  reliance of organic farming on conventional farming was lower in mixed than in specialized  districts. These results highlight the necessity to quantify the contribution of nutrient inﬂows  from conventional farming when assessing organic farming and development scenarios.	
Tipo: 	Journal paper	
Identificador: 	http://orgprints.org/25455/3/Nowak_Nesme_2013_EnvironResLett_8.pdf

Nowak, Benjamin; Nesme, Thomas; David, Christophe and Pellerin, Sylvain   (2013) To what extent does organic farming rely on nutrient inflows from conventional farming?   Environmental Research Letter, 8, 044045.	
Relação: 	http://orgprints.org/25455/	
Formato: 	application/pdf