Tello, EnricGarrabou, Ramon, 1937-Cussó i Segura, XavierOlarieta, José RamónGalán del Castillo, Elena2013-05-222013-05-222012-060300-7839https://hdl.handle.net/2445/43662By reconstructing the nutrient balance of a Catalan v illage circa 1861-65 we examine the sustainability of organic agricultural sy stems in the northwest Mediterranean bioregion prior to the green rev olution and the question of whether the nutrients extracted f rom the soil were replenished. With a population density of 59 inhabitants per square km, similar to other northern European rural areas at that time, and a lower liv estock density per cropland unit, this v illage experienced a manure shortage. The gap was f illed by other labour-intensiv e way s of transf erring nutrients f rom uncultiv ated areas into the cropland. Key elements in this agricultural sy stem were v iney ards because they hav e f ew nutrient requirements, and woodland and scrublands as sources of relev ant amounts of nutrients collected in sev eral ways.19 p.application/pdfeng(c) Springer Verlag, 2012Agricultura biològicaAdobsCatalunyaSistemes agrícolesOrganic farmingManuresCataloniaAgricultural systemsinfo:eu-repo/semantics/article6138812013-05-22info:eu-repo/semantics/openAccess