Information on some diseases and pests that attack cassava, as well as the symptoms induced by nutritional deficiencies and toxicities and damage resulting from the misuse of herbicides are given in this manual. Specific and general recommendations regarding the control of the described problems ...
En este manual se presenta informacion sobre algunas de las enfermedades y plagas que atacan a la yuca, como tambien los sintomas inducidos por deficiencias y toxicidades nutricionales y danos debidos al uso incorrecto de los herbicidas. Se incluyen recomendaciones generales y especificas para el...
Lozano, J.C.
,
Bellotti, Anthony C.
,
Reyes, J.A.
,
Howeler, Reinhardt H.
,
Leihner, D.E.
,
Doll, J.
,
[Problemas en el cultivo de la yuca]
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Problemas en el cultivo de la yuca
The effect of inoculating cassava with mycorrhizae on plant growth and P uptake was studied in sterilized and nonsterilized soils to which 8 levels of P were applied, as well as in a flowing culture solution at 4 different P concn. Inoculation produced greater than benefits in cassava grown in st...
Howeler, Reinhardt H.
,
[El efecto de la inoculacion con micorrizas sobre la nutricion fosforica de la yuca]
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El efecto de la inoculacion con micorrizas sobre la nutricion fosforica de la yuca
Cadavid López, Luis Fernando
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Howeler, Reinhardt H.
,
[El problema de la erosion en los suelos de Mondomo, Cauca, Colombia dedicados al cultivo de la yuca y sus posibles soluciones]
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El problema de la erosion en los suelos de Mondomo, Cauca, Colombia dedicados al cultivo de la yuca y sus posibles soluciones
The results are given of physicochemical analyses of soils and estimated cassava yields for five production zones in Colombia. There was little correlation between yield and the factors studied. Yields tended to increase as P increased; and there was a positive response to K in 2 zones and Ca/Mg ...
Díaz Duque, R.O.
,
Howeler, Reinhardt H.
,
Varon R, U
,
[Evaluacion de los analisis de suelos de las zonas productoras de yuca en Colombia]
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Evaluacion de los analisis de suelos de las zonas productoras de yuca en Colombia
Cassava is among the food crops that tolerate soil acidity well; therefore, it is often planted on highly acid, unfertile soils without fertilization or liming. Nevertheless, cassava needs large quantities of P for maximum productivity. In fertilization trials at Carimagua (Llanos Orientales, Col...
A technique to study mycorrhizal effects on growth and P-uptake of cassava (Manihot escultenta, Crantz) grown in flowing solution culture is described. Phosphorus concentrations were carefully maintained constant at 0.1, 1, 10 and 100 ?M by daily analyses and adjustment of the nutrient solutions....
Howeler, Reinhardt H.
,
Edwards, D.
,
Asher, CJ
,
[Application of the flowing solution culture techniques to studies involving mycorrhizas]
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Application of the flowing solution culture techniques to studies involving mycorrhizas
In Rayong, Thailand, a regional workshop was carried out with breeders and agronomists of the various cassava producing countries in southern Asia in an attempt to establish a cassava research network to increase cassava productivity in the region and improve the prevailing standard of living. Ad...
Howeler, Reinhardt H.
,
Kawano, K
,
[Regional Workshop on Cassava Breeding and Agronomy Research in Asia (1987, Rayong, Thailand). Cassava breeding and agronomy research in Asia: Proceedings of a regional workshop]
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Regional Workshop on Cassava Breeding and Agronomy Research in Asia (1987, Rayong, Thailand). Cassava breeding and agronomy research in Asia: Proceedings of a regional workshop
Recommendations are given on the var. and cultural practices used in cassava cultivation in the Colombian Llanos Orientales. Initially, soil acidity and low fertility were believed to be the major constraints; however, trials have indicated that diseases (bacterioses, superelongation, and anthrac...
Howeler, Reinhardt H.
,
Ballesteros, D
,
[El cultivo de la yuca en los Llanos Orientales de Colombia: Variedades y practicas agronomicas]
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El cultivo de la yuca en los Llanos Orientales de Colombia: Variedades y practicas agronomicas
Information on some diseases and pests that attack cassava, as well as the symptoms induced by nutritional deficiencies and toxicities and damage resulting from the misuse of herbicides are given in this manual. Specific and general recommendations regarding the control of the described problems ...
En este manual se presenta informacion sobre algunas de las enfermedades y plagas que atacan a la yuca, como tambien los sintomas inducidos por deficiencias y toxicidades nutricionales y danos debidos al uso incorrecto de los herbicidas. Se incluyen recomendaciones generales y especificas para el...
Lozano, J.C.
,
Bellotti, Anthony C.
,
Reyes, J.A.
,
Howeler, Reinhardt H.
,
Leihner, D.E.
,
Doll, J.
,
[Field problems in cassava]
,
Field problems in cassava