2012-06-152012-06-1520111612-9830urn:nbn:de:hebis:34-2012011740380http://hdl.handle.net/123456789/2012011740380engUrheberrechtlich geschützthttps://rightsstatements.org/page/InC/1.0/soil fertility declineIAA systemsAfrican farming systemsnutrient balances630Ideotyping integrated aquaculture systems to balance soil nutrientsAufsatz