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Estudio de los fosfatos inorgánicos en relación con el grado de evolución en andosoles

Other TitlesStudy of the relationship between the inorganic phospates and the weathering degree of the Canary Islands andosoils
AuthorsGutiérrez-Jerez, F.; Pérez-Méndez, J. A.; Fernández-Caldas, E.; Borges-Pérez, Andrés
Issue Date1979
PublisherCSIC - Instituto Nacional de Edafología y Agrobiología José María Albareda
CitationAnales de Edafología y Agrobiología 38(9-10): pp. 1479-1494 (1979)
AbstractThe relationship of the several fractions of the inorganic phosphates, extracted by the Chang-Jackson method, with the weathering degree of the Canary Islands andosols show the following trend: 1. The fractions P-Ca and P-Al decrease as the weathering degree increase, giving the aluminium phosphate a maximum in the Evolued Vitrandepts. 2. The fraction P-Fe has not very much variation in the sequence, excluding the profil Manantiales, which has a very high values comparably to the other profiles. 3. The P-occluded tends to increase with the weathering degree. Chang-Jackson's hypothesis goes quite well to these soils, beacuse the differents forms of soil inorganic phosphates are related with the weathering degree according to the following tendence: P-Ca, P-Al, P-Fe, P-occluded.
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