"Yoshinori Watanabe" . . "1-10" . . . "wetenschappelijk artikel"@nl . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@nl . "Sunday E. Obalum" . . "John C. Nwite" . . . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@nl . "Charles A. Igwe" . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@nl . . . "2012-01-01T00:00:00Z"^^ . . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@en . . . . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0443 2012"@uk . "Toshiyuki Wakatsuki" . . . "10.1155/2012/673926" . . . . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@en . . "2012" . . . . . "Mohammed M. Buri" . . . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@en . . . . . . . "Hermansah" . . . "im Jahr 2012 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . . . "Soil Degradation-Induced Decline in Productivity of Sub-Saharan African Soils: The Prospects of Looking Downwards the Lowlands with theSawahEcotechnology"@en . .