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Título: | Effect of Applying Soluble and Coated Phosphate Fertilizers on Phosphate Availability in Calcareous Soils and on P Absorption by a Rye-Grass Crop |
Autor: | García, M.C.; Díez López, José Antonio CSIC; Vallejo, Antonio; García, L.; Cartagena, Maria C. | Palabras clave: | Phosphate fertilizers Calcareous soils Available P Uptake P |
Fecha de publicación: | 1997 | Editor: | American Chemical Society | Citación: | Journal of Agricultural and Food Chemistry 45 (5): 1931–1936 (1997) | Resumen: | The effect of using several phosphoric fertilizers on phosphate availability in calcareous soils with a high phosphorus fixation capacity was studied. Tests were run with commercial fertilizers, differing in the ionic species provided (urea phosphate, triple superphosphate, simple superphosphate, and diammonium phosphate), and experimental controlled-release fertilizers (lignin-coated triple superphosphate and rosin-coated diammonium phosphate), each providing phosphate to the soil at a different rate. Simultaneous experiments were run (in calcareous soils) with a plant (glasshouse test) and with no plant (incubation test). Phosphate availability and, therefore, plant phosphorus absorption increased in such soils when fertilizing with urea phosphate (UP) or with lignin-coated triple superphosphate (TSPL-11). Other fertilizers such as uncoated superphosphates or diammonium phosphate (DAP) did not significantly increase P availability compared to the unfertilized soil. The electroultrafiltration (EUF) technique was also used for predicting the P absorbed by a crop in calcareous soils after applying a phosphate fertilizer. | Descripción: | 6 páginas, 4 figyras y 2 tablas estadísticas | Versión del editor: | http://dx.doi.org/10.1021/jf960600a | URI: | http://hdl.handle.net/10261/81564 | DOI: | 10.1021/jf960600a |
Aparece en las colecciones: | (ICA) Artículos |
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