Cassava varietal response to fertilization: Growth dynamics and implications for cropping sustainability

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dc.creatorPellet, D
dc.creatorEl-Sharkawy, Mabrouk A.
dc.date1997-07
dc.date2014-09-24T08:41:51Z
dc.date2014-09-24T08:41:51Z
dc.date.accessioned2026-06-27T14:45:06Z
dc.descriptionFour contrasting varieties of cassava (Manihot esculenta Crantz) were grown for ten months over two consecutive seasons in hillside Colombia with or without nitrogen, phosphorus and potassium fertilization. Sequential harvests were every two months. The two varieties well adapted to acid soils (CM 489-1 and CM 523-7) had higher yields and exhibited the strongest response to fertilization, highest solar radiation use efficiency, earlier canopy ground cover and higher leaf litter accumulation. The export of potassium, however, was no higher than in the other genotypes, mainly as a consequence of higher potassium use efficiency in the adapted varieties. Significant amounts of total calcium, magnesium and nitrogen accumulated in the whole plant were recycled in the leaf litter during growth. High-yielding varieties adapted to acid soils did not exacerbate soil fertility problems of cassava crops; rather, they were beneficial. Certain growth parameters could be used to select for varieties with low impact on soil fertility.
dc.identifierhttps://hdl.handle.net/10568/43248
dc.identifier.urihttp://hdl.handle.net/123456789/87383
dc.languageen
dc.publisherCambridge University Press
dc.rightsLimited Access
dc.subjectmanihot esculenta
dc.subjectsustainability
dc.subjectleaf area
dc.subjectsolar radiation
dc.subjectfertilizer application
dc.subjectnutrient excesses
dc.subjectsostenibilidad
dc.subjectsuperficie foliar
dc.subjectradiación solar
dc.subjectaplicación de abonos
dc.subjectexceso de nutrientes
dc.titleCassava varietal response to fertilization: Growth dynamics and implications for cropping sustainability
dc.typeJournal Article

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Centro Internacional de Agricultura Tropical (CIAT)