Characteristics of the major soil groups found in bean-growing areas of Africa (Alfisols, Ultisols, Oxisols, Inceptisols) and associated nutritional disorders are discussed. Soil fertility factors affecting bean growth and N fixation, as evidenced in research conducted in Africa, are reviewed as ...
Mughogho, SK
,
Wortmann, Charles S.
,
[Diagnosis of soil fertility constraints in bean based cropping systems: review of research results]
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Diagnosis of soil fertility constraints in bean based cropping systems: review of research results
A total of four sets of seeds (totalling 5526 seeds) were recieved from CIAT during the period 1990-1993. One set (comprising 1100 hybrid seeds) originated from the Thai-CIAT program in Rayong. Evaluation and selection of seedling clones has progressed satisfactorily, and culminated in the releas...
Tan, Swee Lian
,
Chan, S.K.
,
[Recent progress in cassava varietal improvement and agronomy research in Malaysia]
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Recent progress in cassava varietal improvement and agronomy research in Malaysia
In Vietnam, extension activities are considered by the government as an urgent and longterm measure, that has a great influence on the production process of farmer commodity production. Among extension objectives, cassava production is given great importance in those areas where appropriate condi...
Hoang, Kim
,
Tran, Van Son
,
Nguyen, Van Thang
,
Tran, Ngoc Quyen
,
Ao, Van Thinh
,
[On-farm research and transfer of technology for cassava production in Vietnam]
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On-farm research and transfer of technology for cassava production in Vietnam
Over the past 25-30 years, cassava agronomy research in India has made tremendous progress. In the recent past there has been a steady increase in the cultivation of cassava in nontraditional areas, despite the fact that cereals form the major crop and staple food of the country. There has been a...
George, James
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Mohankumar, C.R.
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Nair, G.M.
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Ravindran, C.S.
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[Cassava agronomy research and adoption of improved practices in India: Major achievements during the past 30 years]
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Cassava agronomy research and adoption of improved practices in India: Major achievements during the past 30 years
In Indonesia, annual growth rates for cassava production and yield from 1961 to 2000 were 0.81% and 1.35%, respectively. However, the harvested area decreased at an average annual rate of 0.61%. The average yield of about 12 tonnes of fresh roots/ha is much below the potential yield of 20 to 40 t...
Wargiono, J.
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Widodo, Yudi
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Utomo, Wani Hadi
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[Cassava agronomy research and adoption of improved practices in Indonesia: Major achievements during the past 20 years]
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Cassava agronomy research and adoption of improved practices in Indonesia: Major achievements during the past 20 years
In the past few years, the economy of Vietnam has developed very rapidly, and in agriculture, food production has been quite successful, especially that of rice. At the same time cassava production has changed from being a crop providing food for humans to being a cash crop. The planting of new c...
Nguyen, Huu Hy
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Nguyen, The Dang
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Pham, Van Bien
,
[Cassava agronomy research and adoption of improved practices in Vietnam]
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Cassava agronomy research and adoption of improved practices in Vietnam
Numerous innovation platforms have been implemented to encourage the adoption of agricultural innovations and stakeholder interactions within a value chain. Yet little research has been undertaken on the design and implementation of innovation platforms focussing on issues other than market acces...
Dabiré, Der
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Andrieu, Nadine
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Djamen, Patrice
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Coulibaly, Kalifa
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Posthumus, Helena
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Diallo, Amadou Mohamadoun
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Medina, Karambiri
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Douzet, Jean-Marie
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Triomphe, Bernard
,
[Operationalizing an innovation platform approach for community-based participatory research on conservation agriculture in Burkina Faso]
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Operationalizing an innovation platform approach for community-based participatory research on conservation agriculture in Burkina Faso
A pilot project on the use of Farmer Participatory Research (FPR) methodologies with the objective of enhancing farmer adoption of practices that minimize soil erosion in cassava-based cropping systems, was conducted jointly by DOA and DOAE with technical and financial support from CIAT in two si...
Vongkasem, V
,
Klakhaeng, Kaival I.
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Hemvijit, S.
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Tongglum, Anuchit
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Katong, S.
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Suparhan, Danai
,
[Farmer participatory research in soil management and varietal selection in Thailand]
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Farmer participatory research in soil management and varietal selection in Thailand
This paper mainly describes the objectives of the FPR project, the results of the RRA that was conducted in Hainan and the demonstration plots at CATAS, as well as the demonstration and FPR trials at the pilot sites (especially in Kongba village of Baisha county). The major existing problems and ...
Zhang, Weite
,
Lin, Xiong
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Li, Kaimian
,
Huang, Jie
,
[Farmer participatory research in cassava soil management and varietal dissemination in China]
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Farmer participatory research in cassava soil management and varietal dissemination in China