Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P. Various fertilizer trials were used to determine: (a) nutrient absorption and distribution within the plant during a 12-mo. growth cycle; (b) the long-term effect of N, P, K applications on soil fertility and yield of continuously grown cassava; (c) the residual effect of various sources of P; (d) the lime x P interaction; and (e) the effect of mycorrhizal inoculation on P absorption. (CIAT)||Se continuaron los esfuerzos para desarrollar tecnologia de yuca adecuada para las vastas extensiones de suelos acidos e infertiles; en Carimagua se inicio la seleccion de germoplasma en gran escala a nivel de campo para buscar tolerancia a bajos niveles de P y a la acidez y en Quilichao tolerancia a bajos niveles de P. Se realizaron varios ensayos de fertilizacion para determinar: a) la absorcion de nutrimentos y su distribucion dentro de la planta durante un ciclo de crecimiento de 12 meses; b) el efecto a largo plazo de las aplicaciones de N, P y K en la fertilidad del suelo y en el rendimiento de la yuca cultivada continuamente; c) el efecto residual de varias fuentes de P: d) la interaccion cal x P y e) el efecto de la inoculacion de micorrizas en la absorcion de P. (CIAT)
Authors and Publishers
International Center for Tropical Agriculture
Mission
To reduce hunger and poverty, and improve human nutrition in the tropics through research aimed at increasing the eco-efficiency of agriculture.
People
CIAT’s staff includes about 200 scientists. Supported by a wide array of donors, the Center collaborates with hundreds of partners to conduct high-quality research and translate the results into development impact. A Board of Trustees provides oversight of CIAT’s research and financial management.
Values
Mission
To reduce hunger and poverty, and improve human nutrition in the tropics through research aimed at increasing the eco-efficiency of agriculture.
People
CIAT’s staff includes about 200 scientists. Supported by a wide array of donors, the Center collaborates with hundreds of partners to conduct high-quality research and translate the results into development impact. A Board of Trustees provides oversight of CIAT’s research and financial management.
Values
Data provider
CGIAR (CGIAR)
CGIAR is the only worldwide partnership addressing agricultural research for development, whose work contributes to the global effort to tackle poverty, hunger and major nutrition imbalances, and environmental degradation.