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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 HyNguyen, The DangPham, Van Bien[Cassava agronomy research and adoption of improved practices in Vietnam]Cassava agronomy research and adoption of improved practices in Vietnam

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, VKlakhaeng, Kaival I.Hemvijit, S.Tongglum, AnuchitKatong, S.Suparhan, Danai[Farmer participatory research in soil management and varietal selection in Thailand]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, WeiteLin, XiongLi, KaimianHuang, Jie[Farmer participatory research in cassava soil management and varietal dissemination in China]Farmer participatory research in cassava soil management and varietal dissemination in China

Annual growth of cassava production in the main cassava production areas during the last five years seems to have kept pace with the increase in population, while the harvested area of cassava increased only 0.6% annually. Of the total cassava produced, about 54% is used for human food, 28% for i...


Wargiono, J.KushartoyoSuyamto, H.Guritno, Bambang[Recent progress in cassava agronomy research in Indonesia]Recent progress in cassava agronomy research in Indonesia

Through cooperation with CIAT, national programs in China have paid more and more attention to cassava agronomy research and a lot of progress has been made. This paper describes briefly the most common cropping systems and production practices presently used by farmers. It also reviews the resul...


Zhang, WeiteLin, XiongLi, KaimianJuang, JieTian, YinongLee, JunFu, Quohui[Cassava agronomy research in China]Cassava agronomy research in China

Five soil types on which cassava is being planted were investigated. Almost all these soils are degraded in terms of soil properties, especially with respect to soil fertility. Cassava is traditionally planted without fertilizer application and soil conservation measures, resulting in a negative ...


Thai PhienNguyen Cong Vinh[Nutrient management for cassava-based cropping systems in Northern Vietnam]Nutrient management for cassava-based cropping systems in Northern Vietnam

During the last three years cassava production in the Philippines did not progress markedly, neither in area nor in volume. In terms of area, there was only an increase of 14,424 ha or 6.4%, while in terms of volume the increase was 112,177 metric tons or 5.7%. One of the reasons for this was the...


Evangelio, Fernando A.Ladera, Julieta C.[Recent progress in cassava agronomy research in the Philippines]Recent progress in cassava agronomy research in the Philippines

This paper presents a case study based on the findings in two villages in eastern Uttar Pradesh, India, part of a project started in 1997 to develop, test, and refine methodologies of participatory research and gender analysis as they apply to the development of new technologies in germplasm and ...


Paris, T.R.Singh, AbhaLuis, JoyceSingh, Hari NathSingh, OmkarSingh, SinjaySingh, Ram KathinSarkarung, Surapong[Listening to farmers' perceptions through participatory rice varietal selection: A case study in villages in Eastern Uttar Pradesh, India]Listening to farmers' perceptions through participatory rice varietal selection: A case study in villages in Eastern Uttar Pradesh, India

An analysis of the recent trend in cassava area, production and yield during 1993-96 revealed an impressive increase in Tamil Nadu, which is the predominant state where cassava is grown as an industrial crop. Its present yield of 29 t/ha is the highest in the world. Even though the overall nation...


Nair, S.G.Rajendran, P.G.Naskar, S.K.Sreekumari, M.T.Unnikrishnan, M.Sheela, M.N.[Breeding and varietal improvement of cassava in India]Breeding and varietal improvement of cassava in India

Weeds are a major biological yield reducing factor in most cropping systems in Africa. The annual cost of weed control has been estimated to be $4.3 billion in Africa. This figure is expected to increase as a result of climate change effects on weed species and ecological conditions for a range o...


Kayeke, M.J.Nhamo, N.Chikoye, D.[Reducing risk of weed infestation and labor burden of weed management in cropping systems]Reducing risk of weed infestation and labor burden of weed management in cropping systems

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