2024-03-29T12:28:39Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/211202019-03-19T14:24:51Zcom_10261_48com_10261_5col_10261_301
2010-02-16T09:38:01Z
urn:hdl:10261/21120
Respuesta del maíz a las aplicaciones de fósforo en un suelo pardo con tendencia fersialítica
Díaz Luis, P.
Eleizalde Luzárraga, María Benigna
García, V.
Díaz, A.
Fertilidad de suelos
Under 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.
2010-02-16T09:38:01Z
2010-02-16T09:38:01Z
1983
artículo
Anales de Edafología y Agrobiología 42(1-2): pp. 169-182 (1983)
0365-1797
http://hdl.handle.net/10261/21120
spa
openAccess
CSIC - Instituto Nacional de Edafología y Agrobiología José María Albareda