http://www.fao.org/docrep/009/a0100e/a0100e05.htm this stimolano il rilascio del carbonio http://www.fao.org/docrep/009/a0100e/a0100e05.htm carbon dioxide, water, nutrients, and carbon compounds http://www.fao.org/docrep/009/a0100e/a0100e05.htm The importance of soil organic matter - Food and ...