Browsing School of Agricultural and Food Sciences by Author "Engels, Christof"

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    • Cadmium uptake and distribution to edible organs in African indigenous vegetables 

      Onyuka, Enos; Husen, Wilhelm van; Nambafu, Godfrey N.; Bessler, Holger; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Mwonga, Samuel; Ulrichs, Christian; Engels, Christof (Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (ADTI),, 2015-09)
      Cadmium (Cd) is toxic to humans. The most important source for dietary intake is consumption of plant products, whereby Cd concentrations in leafy vegetables are particularly high. In peri-urban areas, soils are often ...

    • Essential and toxic minerals in leafy vegetables from open air and supermarkets in Nairobi 

      Nambafu, Godfrey N.; Adam, Anna; Onyuka, Enos; Mwonga, Samuel; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Engels, Christof (Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (ADTI), 2015-09)
      Deficiency of macroelements such as calcium (Ca) and microelements like zinc (Zn) is widespread in sub-Saharan Africa, particularly among the poor, for which diets are strongly based on staple crops like maize and sorghum. ...

    • Iron concentrations in roots and edible organs of African indigenous vegetable species 

      Eckhardt, Ulrich; Beer, Julius; Bessler, Holger; Nambafu, Godfrey N.; Onyuka, Enos; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Engels, Christof (Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (ADTI),, 2015-09)
      Iron (Fe) deficiency is among the 10 leading human health risks causing “hidden hunger” in sub- Saharan Africa. Iron concentrations and bioavailability are often higher in leafy vegetables than in staple crops like maize ...

    • Strategies of African indigenous vegetables to cope with phosphorus deficient soils 

      Nambafu, Godfrey; Onyuka, Enos; Bessler, Holger; Hoeppner, Nicolai; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Mwonga, Samuel; Engels, Christof (Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (ADTI), 2016-09)
      Food production in smallholder farming systems of sub-Saharan Africa is often constrained by low soil contents of plant-available phosphorus (P). An option to increase food production is cultivation of species with high P ...