Nutricion mineral y fertilizacion de la yuca
Although cassava grows relatively well in unfertile acid soils where many crops do not prosper, it also responds to fcrtilization and, in fact, has a fairly high P requirement. In general P is the most limiting element for yields in 3 classes of tropical soil; in the Llanos Orientales of Colombia, y...
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| Formato: | Capítulo de libro |
| Lenguaje: | Español |
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International Center for Tropical Agriculture
1979
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/81712 |
| _version_ | 1855527508641841152 |
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| author | Howeler, Reinhardt H. |
| author_browse | Howeler, Reinhardt H. |
| author_facet | Howeler, Reinhardt H. |
| author_sort | Howeler, Reinhardt H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Although cassava grows relatively well in unfertile acid soils where many crops do not prosper, it also responds to fcrtilization and, in fact, has a fairly high P requirement. In general P is the most limiting element for yields in 3 classes of tropical soil; in the Llanos Orientales of Colombia, yields are tripled by adequate P fertilization. Cassava extracts large quantities of K from the soil (approx 100 kg of K2O/25 t of roots) and this element can be exhausted if cassava is continuously cultivated without returning appropriate quantities of K to the soil. Under these conditions the crop responds to high rates of K. In comparison to other crops, cassava requires equal to or less than N, and generally, only low levels are recommended since the excessive application of N fertilizers stimulates the growth of foliage and reduces starch synthesis. Cassava tolerates acid soils where other crops suffer from Al or Mn toxicity fairly well. It also tolerates a low pH, even when the optimum pH for this crop varies from 5.5-7.5. Cassava responds to low rates of K but is susceptible to excess timing, which can cause minor element deficiencies. Among the minor element deficiencies, Zn is the most frequent; it can be amended by applying ZnSO4 to the soil, as a foliar spray or in solution for dipping the propagation material. By selecting a great no. of cassava cv. for their tolerance to adverse soil conditions, such as acidity or a limited amount of available P, it is possible to obtain genetic material that is especially well adapted to develop in poor soils with a min of fertilization. (AS-CIAT) |
| format | Book Chapter |
| id | CGSpace81712 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 1979 |
| publishDateRange | 1979 |
| publishDateSort | 1979 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace817122025-11-05T17:00:02Z Nutricion mineral y fertilizacion de la yuca Howeler, Reinhardt H. manihot esculenta semimetals copper iron magnesium manganese mineral deficiencies soil impoverishment deficiencies Although cassava grows relatively well in unfertile acid soils where many crops do not prosper, it also responds to fcrtilization and, in fact, has a fairly high P requirement. In general P is the most limiting element for yields in 3 classes of tropical soil; in the Llanos Orientales of Colombia, yields are tripled by adequate P fertilization. Cassava extracts large quantities of K from the soil (approx 100 kg of K2O/25 t of roots) and this element can be exhausted if cassava is continuously cultivated without returning appropriate quantities of K to the soil. Under these conditions the crop responds to high rates of K. In comparison to other crops, cassava requires equal to or less than N, and generally, only low levels are recommended since the excessive application of N fertilizers stimulates the growth of foliage and reduces starch synthesis. Cassava tolerates acid soils where other crops suffer from Al or Mn toxicity fairly well. It also tolerates a low pH, even when the optimum pH for this crop varies from 5.5-7.5. Cassava responds to low rates of K but is susceptible to excess timing, which can cause minor element deficiencies. Among the minor element deficiencies, Zn is the most frequent; it can be amended by applying ZnSO4 to the soil, as a foliar spray or in solution for dipping the propagation material. By selecting a great no. of cassava cv. for their tolerance to adverse soil conditions, such as acidity or a limited amount of available P, it is possible to obtain genetic material that is especially well adapted to develop in poor soils with a min of fertilization. (AS-CIAT) Aunque la yuca se desarrolla relativamente bien en suelos infertiles acidos donde muchos cultivos no prosperan, tambien responde a la fertilizacion y, de hecho tiene un requerimiento de P sumamente alto. El P es generalmente el elemento mas limitante del rendimiento en 3 clases de suelos tropicales; en los LLanos Orientales de Colombia, los rendimientos se triplicaron mediante la fertilizacion adecuada con P. La yuca extrae grandes cantidades de K del suelo (aprox. 100 kg de K2O/25 t de raices) y este elemento puede agotarse si se cultiva yuca continuamente sin retornar al suelo cantidades apropiadas de K. En estas condiciones, el cultivo responde a dosis altas de K. En comparacion con otros cultivos, la yuca tiene menor o igual requerimiento de N, y por lo general solo se recomienda aplicar niveles bajos; la aplicacion excesiva de fertilizantes N estimula el crecimiento del follaje y reduce la sintesis del almidon. La yuca tolera bastante bien los suelos acidos donde otros cultivos sufren de toxicidad de Al o de Mn. Tambien tolera un pH bajo, aun cuando el pH optimo para este cultivo varia de 5,5-7,5. La yuca responde a dosis bajas de K, pero es susceptible al exceso de encalamiento, el cual puede inducir deficiencias de elementos menores. Entre las deficiencias de elementos menores, la de Zn es la mas frecuente; se puede subsanar mediante la aplicacion de ZnSO4 al suelo, empleandolo como aspersion foliar o en solucion, para sumergir el material de propagacion. Mediante la seleccion de un gran numero de cv. de yuca por su tolerancia a las condiciones adversas del suelo, tales como la acidez o la poca disponibilidad de P, es posible obtener material genetico que este excepcionalmente bien adaptado para desarrollarse en suelos pobres con un minimo de fertilizacion. (RA- CIAT) 1979 2017-06-20T08:51:28Z 2017-06-20T08:51:28Z Book Chapter https://hdl.handle.net/10568/81712 es Open Access application/pdf International Center for Tropical Agriculture Programa de Yuca Howeler, R.H.1979. Nutricion mineral y fertilizacion de la yuca . In: Manual de producción de yuca . Centro Internacional de Agricultura Tropical (CIAT), Programa de Yuca, Cali, CO. p. F-1/F-48. |
| spellingShingle | manihot esculenta semimetals copper iron magnesium manganese mineral deficiencies soil impoverishment deficiencies Howeler, Reinhardt H. Nutricion mineral y fertilizacion de la yuca |
| title | Nutricion mineral y fertilizacion de la yuca |
| title_full | Nutricion mineral y fertilizacion de la yuca |
| title_fullStr | Nutricion mineral y fertilizacion de la yuca |
| title_full_unstemmed | Nutricion mineral y fertilizacion de la yuca |
| title_short | Nutricion mineral y fertilizacion de la yuca |
| title_sort | nutricion mineral y fertilizacion de la yuca |
| topic | manihot esculenta semimetals copper iron magnesium manganese mineral deficiencies soil impoverishment deficiencies |
| url | https://hdl.handle.net/10568/81712 |
| work_keys_str_mv | AT howelerreinhardth nutricionmineralyfertilizaciondelayuca |