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| Registros recuperados: 180 | |
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| Smale, Melinda; Byerlee, Derek R.; Jayne, Thomas S.. |
| There have been numerous episodes of widespread adoption of improved seed and long-term achievements in the development of the maize seed industry in Sub-Saharan Africa. This summary takes a circumspect view of technical change in maize production. Adoption of improved seed has continued to rise gradually, now representing an estimated 44 percent of maize area in Eastern and Southern Africa (outside South Africa), and 60 percent of maize area in West and Central Africa. Use of fertilizer and restorative crop management practices remains relatively low and inefficient. An array of extension models has been tested and a combination of approaches will be needed to reach maize producers in heterogeneous agricultural environments. Yield growth overall has been... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Sub-Saharan Africa; Maize; Seed; Agricultural and Food Policy; Production Economics. |
| Ano: 2011 |
URL: http://purl.umn.edu/113651 |
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| Zulu, Ballard; Jayne, Thomas S.; Beaver, Margaret. |
| The ability of agricultural policy makers to promote national development objectives requires an accurate and reasonably current picture of what crops farmers grow, what they eat, the importance of various crops in their incomes, and how they spend their money. In Zambia’s case, there is reasonably accurate information on production levels and trends in a specific set of crops grown by smallholder farmers, but very little knowledge of how important these specific crops are in smallholders’ total crop incomes, the importance of crop production in total smallholder incomes (which include livestock and non-farm activities), and how changes in crop prices affect smallholders’ welfare. This paper presents a comprehensive picture of crop production and marketing... |
| Tipo: Report |
Palavras-chave: Food security; Food policy; Maize; Marketing; Production; Zambia; Africa; Crop Production/Industries; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/54481 |
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| Crawford, Eric W.; Jayne, Thomas S.; Kelly, Valerie A.. |
| This paper outlines the role of improved soil fertility in the process of structural transformation, and examines specific financial, economic, social, and political arguments in favor of promoting increased fertilizer use, particularly in smallholder farming systems. This paper draws experiences and insights from the literature on which policies and programs appear to work best and which least well in providing a consistent and growing supply of fertilizer to smallholders. Particular attention is given to addressing the question of fertilizer subsidies: Under what circumstances are they warranted and what form should they take, if and when they are implemented? |
| Tipo: Working or Discussion Paper |
Palavras-chave: Crop Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/11557 |
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| Govereh, Jones; Jayne, Thomas S.; Nijhoff, Jan J.; Shawa, Julius J.; Haantuba, Hyde H.; Belemu, A.; Ngulube, E.; Zulu, Ballard; Banda, A.K.. |
| This policy synthesis highlights the key findings and conclusions contained in the full report, “Developments in Fertilizer Marketing in Zambia: Commercial Trading, Government Programs and the Smallholder Farmer.” The key objective of this policy synthesis is to summarize the key findings in order to inform policy makers and stakeholders in the agricultural sector in their efforts to improve the performance of the fertilizer marketing system in Zambia. |
| Tipo: Report |
Palavras-chave: Q18; Agribusiness; Food security; Food policy; Zambia; Fertilizer marketing. |
| Ano: 2002 |
URL: http://purl.umn.edu/54604 |
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| Burke, William J.; Jayne, Thomas S.; Chapoto, Antony. |
| Key Points • Zambia’s maize crop grew by 48% between the 2009 and 2010 harvests, leading to the largest crop recorded in recent history. • Yield growth accounted for 59% of the maize production growth between 2009 and 2010. Expansion of area planted to maize explains an additional 23%, while the remaining 18% can be attributed to a rise in the ratio of harvested to planted land. • Favourable weather conditions contributed 47% of the maize yield growth between 2009 and 2010, whilst, 25% came from increased fertilizer use from both the private and public sectors, and 23% from area expansion. The remaining 5% can be attributed to hybrid seed use and improved management. • Due to favorable weather conditions in both 2008/09 and 2009/10 growing seasons, maize... |
| Tipo: Report |
Palavras-chave: Agricultural and Food Policy; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Food Security and Poverty. |
| Ano: 2010 |
URL: http://purl.umn.edu/97034 |
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| Burke, William J.; Jayne, Thomas S.. |
| The goals of this study are: 1) to determine the relative importance of spatial factors in explaining household wealth; 2) to identify the spatial characteristics of the chronically poorest, the consistently well off, and households escaping from poverty as well as descending into poverty; 3) to determine effects of compound disadvantages on the likelihood of chronic poverty; and 4) to assess the evidence of spatial poverty traps (SPTs). Quantitative analysis is conducted using panel data collected from 1275 households, each surveyed four times with a structured questionnaire over an 11 year period from 1997 to 2007. We identified four distinct groups. The chronically poor are defined as households remaining consistently in the bottom third (tercile) of... |
| Tipo: Report |
Palavras-chave: Africa; Food security; Kenya; Spatial; Poverty; Food Security and Poverty; Q18. |
| Ano: 2008 |
URL: http://purl.umn.edu/54560 |
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| Jayne, Thomas S.; Mukumbu, Mulinge; Duncan, John; Staatz, John M.; Howard, Julie A.; Lundberg, Mattias K.A.; Aldridge, Kim; Nakaponda, Bethel; Ferris, John N.; Keita, Francis; Sanankoua, Abdel Kader. |
| The objectives of the study are: to assess the direction and magnitude of changes in real staple food prices since the implementation of food sector policy reforms in Africa; to identify the major factors affecting changes in these food prices; and to assess the resulting effects of food system reform on household food security. |
| Tipo: Report |
Palavras-chave: Food security; Food policy; Food Security and Poverty; Downloads July 2008-June 2009: 9; R11. |
| Ano: 1996 |
URL: http://purl.umn.edu/54695 |
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| Registros recuperados: 180 | |
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