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Soil degradation, both due to soil erosion and nutrient removal, is a major problem in cassava fields. Most of the existing management technologies that have been developed have had little success in adoption. Some of the reasons are that the technology developed is technically oriented, based on...


Utomo, Wani HadiSuyamto, H.Santoso, H.Sinaga, A.[Farmer participatory research in soil management in Indonesia]Farmer participatory research in soil management in Indonesia

Nutritional studies of cassava have shown that in high-P acid laterite soils, there was no response to P application during four years of consecutive cropping. In low-P soil, even though cassava initially responded to 100 kg P2O5/ha, the response gradually declined. The optimum economic dose of P...


Mohankumar, C.R.Potty, V.P.Ravindran, C.S.Kabeerathumma, S.Sudharmai Devi, C.R.[Progress in agronomy research in India]Progress in agronomy research in India

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

In recent years the National Root and Tuber Crops Program of Vietnam, with the cooperation and assistance of the Centro International de Agricultura Tropical (CI AT), has drawn up a plan for strengthening the research and development capacity, with the objective of improving cassava production in...


Nguyen Huu HyPham, Van BienNguyen The DangThai Phien[Recent progress in cassava agronomy research in Vietnam]Recent progress in cassava agronomy research in Vietnam

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

Over the period 1994-1996, seven batches of seeds and two of meristem tissue cultures were evaluated and selected. As important as root yield is the trait starch content (or dry matter content) if a clone is to be accepted as a starch cultivar. At the time of reporting a number of clones have bee...


Tan, Swee Lian[Varietal improvement and agronomy research in Malaysia]Varietal improvement and agronomy research in Malaysia

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

Los frijoles (Phaseolus vulgaris L.) son un componente fundamental de la dieta y un cultivo importante en todo el Caribe. Las siembras anuales de frijoles en la región exceden 200,000 ha aunque los rendimientos son bajos -de 400 a 900 kg/ha. El frijol es producido casi todo el año en diferentes s...


Beaver, James S.Molina Castañeda, Albeiro[Mejoramiento de frijol para el Caribe]Mejoramiento de frijol para el Caribe

La historia del mejoramiento del frijol Phaseolus vulgaris en la Costa del Perú, puede dividirse en dos etapas; la primera comprendida entre 1957 y 1975, iniciada con la creación del Programa Nacional de Frijol; y la segunda, a partir de la década del 80, con el establecimiento del Programa Nacio...


Valladolid Chiroque, Angel R.[Mejoramiento del frijol para la costa del Perú]Mejoramiento del frijol para la costa del Perú

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