• 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 ...
    • Environmental and Management Factors that Influence Commelina Species in Selected Agro-Ecological Zones in Western Kenya 

      Runyambo, Irakiza; Andika, Darius; Watako, Arnold; Mwonga, Samuel; Musili, Paul; Kirika, Paul (merican Journal of Plant Sciences, 2022-06-30)
      Commelina species are plant resources full of promise as future food and feed that thrive in diverse ecosystems. They are medicinal plants, leafy vegetables, forage for ruminants, feed for cricket insects, crop protection, ...
    • 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. ...
    • Feeding Preferences of The field Cricket Scapsipedus Icipe (Orthoptera: Gryllidae) For Different Species of Commelina 

      Runyambo, Irakiza; Andika, Darius; Watako, Arnold; Mwonga, Samuel; Mweresa, Collins (European Journal of Entomology, 2023)
      The field cricket, Scapsipedus icipe Hugel and Tanga (Orthoptera: Gryllidae) is edible and could be used to reduce malnutrition in Sub-Saharan Africa. As the demand for cricket products is increasing, there is a need to find ...
    • Nutrient fluxes from soil to market in African indigenous vegetables production system 

      Nambafu, Godfrey; Adam, Anna; Onyuka, Enos; Bessler, Holger; Andika, Darius O.; Mwonga, Samuel; Gweyi-Onyango, Joseph Patrick; Engels, Christof (2017-09)
      In many smallholder farming systems in sub-Saharan Africa, nutrient supply is either too low leading to soil fertility decline due to soil mining or too high leading to environmental pollution. The aim of our study was the ...
    • Plant residue-derived organic carbon input into soil in African indigenous vegetable production systems 

      Onyuka, Enos; Nambafu, Godfrey; Bessler, Holger; Adam, Anna; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Mwonga, Samuel; Engels, Christof (2016-09)
      Food production in sub Saharan Africa is constrained by low soil fertility, whereby soil organic matter (SOM) is key factor regulating many soil functions that determine the yielding ability of soils. SOM content is ...
    • 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 ...