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Título

Respuesta del maíz a las aplicaciones de fósforo en un suelo pardo con tendencia fersialítica

Otros títulosResponse of maize to the applications of phosphorus to an alfisol
AutorDíaz Luis, P.; Eleizalde Luzárraga, María Benigna ; García, V.; Díaz, Amalia
Fecha de publicación1983
EditorCSIC - Instituto Nacional de Edafología y Agrobiología José María Albareda
CitaciónAnales de Edafología y Agrobiología 42(1-2): pp. 169-182 (1983)
ResumenUnder laboratory and greenhouse conditions the pattern of a soil which behaves like an alfisol, related to added P was studied. The relation between applied P and that extracted from soil by the methods of Olsen and Bray-Kurtz were determined. With yhe procedure of Burriel-Hernando there were problems related to the development of the blue solour due to the interference of the high content of iron present in the soil extract. In the grrehouse, maize was used like a biological assay. There was a positive response of this crop to P added to the soil (0 to 344 ppm P) since the dry matter production increased according to P treatment. At P lower than 200 ppm of phosphorus added to soil, the content of this nutrient in plant material remained constant, achieving a value of 0.10 % P and deficiency symptons of this nutrient were detected in the leaves of maize. As long as the P fertilization was increased, the content of this nutrient was omproved to 0.20 %. There was also a good concordance among the plant-yield values and those of P extracted from soil by the methods of Bray-Kurtz and Olsen. However it was not possible to delimit the critical concentration for these precedent laboratory proceedures.
DescripciónFertilidad de suelos
URIhttp://hdl.handle.net/10261/21120
ISSN0365-1797
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