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Policy Options for Increasing Crop Productivity and Reducing Soil Nutrient Depletion and Poverty in Uganda AgEcon
Nkonya, Ephraim M.; Pender, John L.; Kaizzi, Crammer; Edward, Kato; Mugarura, Samuel.
This study was conducted with the main objective of determining the linkages between poverty and land management practices in Uganda. The study used the 2002/03 Uganda National Household Survey (UNHS) and more focused data collected from a sub-sample of 851 households of the 2002/03 UNHS sample households. We found that farmers in Uganda deplete about 1.2 percent of the nutrient stock stored in the topsoil per year, which leads to a predicted 0.31 percent reduction in crop productivity. The value of replacing the depleted nutrients using the cheapest inorganic fertilizers is equivalent to about 20 percent of household income obtained from agricultural production. Econometric analysis of the survey results provides evidence of linkages between poverty and...
Tipo: Working or Discussion Paper Palavras-chave: Uganda; Land degradation; Soil nutrient depletion; Poverty; Crop productivity; Natural resource management; Land management; Crop Production/Industries; Food Security and Poverty; Q15; Q57; Q51.
Ano: 2005 URL: http://purl.umn.edu/59227
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Improving crop productivity and water use efficiency in basin rice cultivation in Kenya through SRI CIGR Journal
Matolo Nyamai; Kenya Agricultural Research Institute; Bancy Mburia Mati; Jomo Kenyatta University of Agriculture and Technology; Patrick Gathogo Home; Jomo Kenyatta University of Agriculture and Technology; Benson Odongo; African Institute for Capacity Development; Raphael Wanjogu; Mwea Irrigation Agricultural Development Centre, National Irrigation Board; Elias Thuranira; Kenya Agricultural Research Institute.
Improving the yield of rice (Oryza sativa L) in existing irrigated areas rather than further expansion is more likely to be the main source of growth for the crop in Kenya, especially due to limited land and water resources. In order to achieve this, there is need to identify and adopt solutions that are environmentally more sustainable. That is, the production systems adopted should reduce water consumption and increase productivity. This study evaluated whether the System of Rice Intensification (SRI) could increase water use efficiency and crop productivity relative to the conventional production system of continuous flooding. The effects of SRI on total water input and the growth characteristics of three rice varieties were investigated in a split-plot...
Palavras-chave: Soil and water engineering SRI; Production systems; Water use efficiency; Crop productivity; Kenya.
Ano: 2012 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2094
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