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Advancing human nutrition without degrading land resources through modeling cropping systems in Ethiopian Highlands

Show simple item record Amede, Tilahun Stroud, Ann Aune, Jens 2009-04-30T18:24:33Z 2009-04-30T18:24:33Z 2006
dc.description.abstract Food shortage in Sub-Saharan Africa is predominantly taken as a function of limited access to food, with out considering nutritional quality. Analyzing households’ production of nutrients on farm across farming systems could be valuable in guiding intensification of those systems. An optimization model was employed to analyze the scenario of human nutrition and cropland allocation in Enset (Enset ventricosum)/root crop – based (Areka) or cereal-based (Ginchi) systems of Ethiopian highlands. The type and amount of nutrients produced in each system was analyzed and an optimization model was used to analyse, which cropping strategies may improve the nutritional quality of the household using the existing resources. // Both production systems were in food deficit, in terms of quantity and quality, except for iron. Energy supply of resource-poor households in the enset/root crop-based system was only 75% of Recommended Daily Allowance (RDA), while resource-rich farmers covered their energy, protein, zinc, and thiamine demand. Extremely high deficiency was found in zinc, calcium, Vit A and Vit C, which was only 26.5, 34, 1.78 and 12% of the RDA, respectively. The RDA could be satisfied if they expand the land area of enset, kale and beans by about 20, 10 and 40 %, respectively, at the expense of maize and sweet potato. The critical deficit of the cereal-based system was also calcium, Vit A, and Vit C, which was only 30, 2.5 and 2% of the RDA. In the cereal system, the RDA could be fully satisfied by reducing crop land allocated for barley by about 50% and expand the land area of faba beans, kale and enset. However, Ginchi farmers have better copying options than Areka farmers as they own more land and higher number of livestock that could be used as buffering assets. // A shift from the cereal/root crop dominated system to a perennial-enset dominated system would decrease soil erosion by improving the crop factor by about 45 %. It also has a very strong positive implication for soil fertility management. However, any policy suggestion for change in cropland allocation should be done through bottom-up negotiations with households, communities and district stakeholders. en
dc.format Text en
dc.format.extent 1 digital file (12 p. : ill.) en
dc.language.iso en
dc.publisher AHI, Kampala, UG en
dc.relation.ispartof AHI working paper / African Highlands Initiative; no. 8 en
dc.subject MALNUTRITION en
dc.subject HUMAN NUTRITION en
dc.subject NUTRIENTS en
dc.subject C-FACTOR (CROP FACTOR) en
dc.subject FOOD CROPS en
dc.subject CROPPING SYSTEMS en
dc.subject LAND ALLOCATION en
dc.subject MODELLING en
dc.subject ETHIOPIA en
dc.title Advancing human nutrition without degrading land resources through modeling cropping systems in Ethiopian Highlands en
dc.type Working Paper en
idrc.project.number 101592
idrc.project.title African Highlands Resource Management - Phase III en
idrc.dspace.access IDRC Only en
idrc.rims.adhocgroup IDRC SUPPORTED en

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