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| Registros recuperados: 13 | |
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| De Groote, Hugo; Owuor, George; Doss, Cheryl R.; Ouma, James Okuro; Muhammad, Lutta; Danda, Milton Kengo. |
| The maize green revolution, which increased maize yields through the use of improved varieties and fertilizer, has stalled since the mid-eighties in Kenya. This paper examines whether the stagnation of yields continued in the 1990s in spite of the implementation of the maize liberalization policies by the Kenya Government. Analysis of farm level surveys from 1992 and 2002 indicates slight increases in the use of improved maize varieties and fertilizer, but a substantial decrease in the intensity of fertilizer use. The econometric analysis suggests that the intensity of fertilizer use has a major effect on yield. The use of improved maize varieties, however, did not affect yield, suggesting that there are local varieties for some areas that do as well as... |
| Tipo: Journal Article |
Palavras-chave: Green revolution; Maize; Adoption; Soil fertility; Kenya; Crop Production/Industries; International Development. |
| Ano: 2005 |
URL: http://purl.umn.edu/110143 |
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| De Groote, Hugo; Kimenju, Simon Chege; Owuor, George; Wanyama, Japheter. |
| This study analyses the impact of the liberalization on the intensification of maize production in Kenya. It first analyses the impact of liberalization on input and output prices, followed by an analysis of farmer practices comparing two major farmer surveys, from 1992 and 2002. The results show that liberalization has had a general positive impact on the evolution of prices, with a decrease of input/output price ratios. However, fluctuations of maize prices has become very high and, combined with a decrease of marketing by the marketing board, has increased the uncertainty in maize production. The liberalization has also resulted in a decrease in extension services. Fortunately, farmers have an increased access to credit services. The combined effect of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Liberalization; Intensification; Adoption; Maize; Africa; International Development; International Relations/Trade. |
| Ano: 2006 |
URL: http://purl.umn.edu/25419 |
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| Owuor, George; Shem, Ouma A.. |
| The idea that smallholder farmers are reasonably efficient has triggered much debate in Sub-Saharan Africa. Indeed, efficiency of smallholder farmers has implications for choice of development strategy; reason being that Sub-Saharan countries derive over 60% of their livelihoods from smallholder agriculture and rural economic activities. This paper evaluates factors that promote production efficiency among smallholder farmers in Kenya as avenues for policy intervention. A production frontier function was fitted to a random sample derived from a survey carried in 2007. Results show that all conventional inputs had the expected significance. On the inefficiency indicators, ownership to farmland, attendance to agricultural workshops, access to credit and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Technical Efficiency; Smallholder Farmers; Africa; Productivity Analysis. |
| Ano: 2009 |
URL: http://purl.umn.edu/52807 |
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| Ouma, James Okuro; De Groote, Hugo; Owuor, George. |
| Maize is a key food crop in Kenya. While maize yields increased from 1.25 t ha-1 in early 1960s to over 2 tonnes in 1982, they fell below 1.5 t ha-1 in 2000. Given the limited land area, there is no doubt that Kenya will have to rely more on modern technologies for increased yields .Use of improved maize varieties and fertilizers will therefore continue to be critical inputs for improving productivity. To improve production, it is important to understand factors determining adoption and intensity of use of modern technologies. A stratified 2-stage sampling design was used to select 1800 households, subsequently interviewed by means of structured questionnaire. Econometric models were used to explore factors influencing adoption and intensity of use of the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Maize; Adoption; Improved seed; Fertilizer; Credit; Extension; Kenya; Crop Production/Industries. |
| Ano: 2006 |
URL: http://purl.umn.edu/25433 |
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| Wanyama, Joseph M.; De Groote, Hugo; Mose, Lawrence Obae; Odendo, Martins; Ouma, James Okuro; Owuor, George; Lutta, M.; Ndung'U, J.; Mutoko, M.C.. |
| Maize is the staple food crop and source of income for majority of the Kenyan population and many sub-Saharan African countries. The increasing Kenyan population demands an increase in maize production if intermittent food deficits have to be averted. Since the introduction of improved maize varieties in mid-1960, the start of Green Revolution period, maize yields increased drastically up to 1970s and started declining from 1980s to-date. The key contributory factors are nutrient mining, sub-optimal input use and insect pest damage. Of the insect pests, stalk borer is of economic importance. Currently, KARI and CIMMYT are developing maize varieties that are tolerant to stalk borer damage. In order to evaluate the potential impact of these interventions... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/9526 |
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| Onyuma, Samuel O.; Icart, Eric; Owuor, George. |
| This paper is based on a survey of thirty-one market actors from producing and consumption markets in Kenya. The data was collected through personal interviews. In analyzing integration of p ineapple markets we use Ravallion-type model. Results show that pineapple market in Kenya is oligopsonistic in nature with aspects of collusion amongst the urban middlemen and local market traders thus barring further entry by oth er potential actors. There was little market integration between urban markets and producing markets, and no integration between the rural producing markets. However, model results show that information flow between production and consumption markets significantly influence market integration, an indicator for efficiency in resource... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Marketing Channel; Marketing efficiency; Market integration; Crop Production/Industries; Marketing. |
| Ano: 2006 |
URL: http://purl.umn.edu/25622 |
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| Birachi, E. Abucheli; Owuor, George; Hanf, C.-Hennig. |
| This paper characterises smallholder milk outlets in Nakuru district one of the major milk producing Districts in Kenya, and also analyses factors that influence their current operating and handling capacities. Data comes from four divisions of the district. A sample of 137 smallholder milk retail outlets was made using systematic random sampling methodology. Both descriptive and ordinary regression methods were used in the analysis. A characterisation of the retail outlets is brought out and the factors that affect their current operating capacities presented. Results show that a unit change in education, experience and selling prices leads to 0.29, 0.18 and 0.23 significant changes in milk handling capacities by the retail outlets respectively. These... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Milk supply chain; Smallholder retail outlets; Kenya; Industrial Organization; Marketing. |
| Ano: 2006 |
URL: http://purl.umn.edu/25796 |
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| Berem, Risper M.; Obare, Gideon A.; Owuor, George. |
| Using survey data from 110 randomly selected honey producers from two divisions in Baringo this paper analyzes the constraints and drivers of value addition in honey, an economic activity with a potential to improve household livelihoods but whose development has remained rudimentary. Baringo District undergoes frequent and prolonged drought that impacts on household livelihood assets. The livelihoods have traditionally been agro-based but due to variations in climatic conditions, crop production has been very low. Livestock production has also been adversely affected by these trends, leaving honey production as a viable alternative for smallholder farmers since it is less dependent on, or affected by climatic variations and is not resource intensive. This... |
| Tipo: Journal Article |
Palavras-chave: Value addition; Poverty reduction; Drought; ASAL; Africa; Livestock Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/96163 |
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| Registros recuperados: 13 | |
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