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| Registros recuperados: 27 | |
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| Muhammad, Lutta; Njoroge, Kiarie; Bett, Charles; Mwangi, Wilfred; Verkuijl, Hugo; De Groote, Hugo. |
| The development and promotion of improved crop varieties as well as efficient seed production, distribution, and marketing systems have contributed significantly to increased agricultural production and food security in Kenya. However, these impacts have not been replicated in the semi-arid midlands due to climatic, soil, and institutional factors. Following the liberalization of agriculture in the late 1980s, there has been greater participation of the private sector, non-governmental organizations, and voluntary agencies in the area. This study examined the extent to which these developments affected farmers’ access to dryland crops. The study found that the low quantity of seed traded, high cost of production, and high seed supply prices constrained the... |
| Tipo: Report |
Palavras-chave: Agricultural situation; Seed industry; Seed production; Food security; Marketing; Production costs; Distribution costs; Private sector; Public sector; Farmers; Farming systems; Dry farming; Crop husbandry; Kenya; Crop Production/Industries; E16; F01. |
| Ano: 2003 |
URL: http://purl.umn.edu/56108 |
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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; Andam, Kwaw S.; Hall, Mike; Munyua, Bernard Gathigi; Ngigi, Obadiah; Spielman, David J.. |
| Paper accepted for presentation at the 27th Conference of the International Association of Agricultural Economists (IAAE), Beijing China, August 16-22, 2009, (Ref 690) |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Maize; Market segmentation; Seed; Agricultural and Food Policy; Crop Production/Industries; International Development. |
| Ano: 2009 |
URL: http://purl.umn.edu/51753 |
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| De Groote, Hugo; Wangare, Lucy; Kanampiu, Fred; Odendo, Martins; Friesen, Dennis. |
| Striga is an obligate parasitic weed attacking cereal crops in Subsaharan Africa. In Western Kenya, it is identified by farmers as their major pest problem in maize. A new technology, consisting of seed coating of herbicide tolerant maize varieties, has prove to be very effective in farmer fields. To bring this technology to the farmer, a sustainable delivery system needs to be developed, preferably through the private sector. To help of the seed companies develop a strategy, the potential market for this technology is hereby calculated, combines different data sources into a Geographic Information System (GIS). Superimposing secondary data, field surveys, agricultural statistics and farmer surveys makes it possible to clearly identify the Striga-prone... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Maize; Striga; Africa; Weeds; Pest control; Crop Production/Industries; Q12. |
| Ano: 2005 |
URL: http://purl.umn.edu/24690 |
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| De Groote, Hugo; Gunaratna, Nilupa S.; Ergano, Kebebe; Friesen, Dennis. |
| Biofortified crops, bred for improved nutritional quality, can alleviate nutritional deficiencies if they are produced and consumed in sufficient quantities. These varieties can be promoted based on their agronomic performance or based on their nutritional qualities. Quality protein maize (QPM) was the first biofortified crop and has been disseminated in Africa using both approaches. To study their effectiveness, a survey of rural households was conducted in the maize-growing areas of East Africa, comparing communities with access to QPM extension activities to control communities. The results show that a third to one half of the farmers in project communities participated in extension activities in all countries except Kenya. In these communities,... |
| Tipo: Journal Article |
Palavras-chave: Teaching/Communication/Extension/Profession. |
| Ano: 2010 |
URL: http://purl.umn.edu/96429 |
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| Gunaratna, Nilupa S.; De Groote, Hugo; McCabe, G.P.. |
| Biofortification, or the genetic improvement of the nutritional quality of food crops, is a promising strategy to combat undernutrition, particularly among the rural poor in developing countries. However, traditional methods of impact assessment do not apply to biofortified crops as little or no yield increases are expected. Significant progress has been made to develop maize varieties with improved protein quality, collectively known as quality protein maize (QPM). Evidence for the impact of QPM at the community level, as demonstrated by randomized, controlled studies, was evaluated using meta-analysis. A new and generalizable effect size was proposed to quantify the impact of QPM on a key outcome, child growth. The results indicated that consumption of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Impact assessment; Biofortification; Meta-analysis; Crop Production/Industries; Food Security and Poverty. |
| Ano: 2008 |
URL: http://purl.umn.edu/44166 |
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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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| Rutto, Esther; De Groote, Hugo; Vanlauwe, Bernard; Kanampiu, Fred; Odhiambo, George D.; Khan, Zeyaur R.. |
| During participatory rural appraisals, farmers at the Lake Victoria basin of Kenya and Uganda identified Striga, stemborer and declining soil fertility as three major constraints to maize production To reduce food insecurity, several innovative integrated technologies to address these constraints have been developed, including push-pull (maize intercropped with Desmodium and surrounded by napier grass), maize-soybean and maize-crotalaria rotations, and Imazapyrresistant (IR) maize seed coated with the herbicide. To let farmers evaluate the new technologies, 12 demonstration trials, comparing the different technologies, were established in four villages in Siaya and Vihiga districts (Western Kenya) and two villages in Busia (Uganda). These evaluations,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farmers' preference; Technologies; Ordinal regression; Crop Production/Industries. |
| Ano: 2006 |
URL: http://purl.umn.edu/25317 |
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| Japhether, W.; De Groote, Hugo; Lawrence, M.; Danda, Milton Kengo; Mohammed, Lutta. |
| Hybrid varieties have significantly contributed to increased maize proclivity in Kenya and other SSA countries. A number of factors limit access of farmers to maize varieties, smallholder farmers have sort an alternative option of recycling the hybrid maize seeds. Seeds are carefully selected based on cob and grain size during or before harvest after which they are preserved. hybrid yielding maize varieties (HYMV) developers and disseminators observe that there is a progressive yield decrease of recycling HYMV. The question is Is it economical to recycle HYMV or an innovation that farmers can practice?. This study was designed to evaluate the yield losses and benefits of hybrid maize recycling in Kenya. Through key informants, farmers who grew both... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2006 |
URL: http://purl.umn.edu/25726 |
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| Ouma, James Okuro; Odendo, Martins; Bett, Charles; De Groote, Hugo; Mugo, Stephen; Mutinda, Charles; Gethi, James; Njoka, Stephen; Ajanga, S.; Shuma, J.. |
| Insect Resistant Maize for Africa Project (IRMA) aims at developing and deploying insect resistant maize varieties to reduce grain losses due to insect pests. As part of incorporating farmer’s perceptions and improving the adoption of the developed varieties, participatory approaches are adopted. The paper analysis farmer’s preferences of maize germplasm developed through conventional breeding. The paper uses data collected from evaluations conducted at the end of 2006 April and October rains. Nine stem borer resistant maize varieties were evaluated alongside six commercial checks in the moist transitional zones (East and West) at vegetative and harvest stage, while in the dry transitional zone and dry mid altitude zones, 6 new varieties were evaluated... |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/96189 |
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| De Groote, Hugo; Tomlins, Keith; Haleegoah, Joyce; Awool, Manfred; Frimpong, Benedicta; Banerji, Abijit; Chowdury, Shyamal K.; Meenakshi, J.V.. |
| Deficiencies of micronutrients such as vitamin A are widespread, expecially in Africa. Biofortified crops such as maize, bred for high levels of provitamin A might offer a solution, but these crops are often bright orange, and African maize consumers prefer white. To estimate the consumers interest in orange biofortified maize, sensory evaluations were organized in rural Ghana with white, yellow and orange maize. The effect of information on willingness to pay for biofortification was estimated using a simulated radio message. Results indicate that color preferences are highly regional, wide variation exist within regions, and the provision of information is able to change these preferences. The color of biofortified maize should therefore not be seen as... |
| Tipo: Journal Article |
Palavras-chave: Maize; Biofortification; Consumers; Experimental auction; Sensory evaluation; Crop Production/Industries; Demand and Price Analysis. |
| Ano: 2010 |
URL: http://purl.umn.edu/96197 |
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| Kimenju, Simon Chege; De Groote, Hugo. |
| A survey of 600 consumers was conducted in Nairobi to determine attitudes and willingness to pay (WTP) for GM maize meal. WTP was estimated using the double-bounded logit model. Overall, 38% are aware of GM crops. Most consumers believe in the technology's positive impacts, but are concerned about environmental and health risks. Majority (68%) would buy GM maize meal at the price of their favourite maize meal brand. The mean WTP for GM maize meal is KShs 58 for a 2kg packet, a premium of 13.7 % over mean average price of favourite brands. WTP is influenced more by subjective than socioeconomic characteristics. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: GMO; Biotechnology; Consumer; Africa; Maize; Consumer/Household Economics; D12; C25; Q16. |
| Ano: 2005 |
URL: http://purl.umn.edu/24504 |
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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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| Registros recuperados: 27 | |
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