Residual effects of natural Zn chelates on navy bean response, Zn leaching and soil status

Álvarez Álvarez, José Manuel; Almendros García, Patricia y González Rodríguez, Demetrio (2009). Residual effects of natural Zn chelates on navy bean response, Zn leaching and soil status. "Planta and Soil", v. 317 (n. 1-2); pp. 277-291. ISSN 0032-079X. https://doi.org/10.1007/s11104-008-9808-9.

Descripción

Título: Residual effects of natural Zn chelates on navy bean response, Zn leaching and soil status
Autor/es:
  • Álvarez Álvarez, José Manuel
  • Almendros García, Patricia
  • González Rodríguez, Demetrio
Tipo de Documento: Artículo
Título de Revista/Publicación: Planta and Soil
Fecha: Marzo 2009
Volumen: 317
Materias:
Palabras Clave Informales: Availability - Zn chelates - Leaching - Navy bean - Speciation - Residual effect
Escuela: E.U.I.T. Agrícolas (UPM)
Departamento: Química y Análisis Agrícola [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

greenhouse experiment was conducted on weakly acidic and calcareous soils to evaluate the aging and residual effects of three natural organic Zn chelates [Zn-ethylenediaminedisuccinate (Zn-EDDS), Zn-polyhydroxyphenylcarboxylate and Zn-aminelignosulfonate] each administered in a single application to a first navy bean (Phaseolus vulgaris L.) crop at several different Zn application rates. In a second navy bean crop, we determined the following parameters: the extent of Zn leaching, the amount of available Zn remaining in soils, the amount of easily leachable Zn, the size of Zn fractions in soils, the pH and redox potential, the dry matter yield, and the soluble and total Zn concentrations in plants. The residual effect after 2 years of Zn fertilization mainly depended on the aging effect of Zn chelates and losses due to Zn leaching. The data relating to the evolution from the first to the second crop showed that the aging effect was noticeable in the calcareous soil. In the latter soil, the Zn-S,S-EDDS treatments showed greater decreases in the Zn uptake by plants than the other Zn treatments and the greatest Zn uptake by plants occurred when Zn was applied as Zn-aminelignosulfonate (10 mg Zn kg−1 rate, 6.85 mg Zn per lysimeter; 5 mg Zn kg−1 rate, 3.36 mg Zn per lysimeter). In contrast, in the calcareous soil, the maximum amount of Zn uptake, for the three chelates was 0.82 mg Zn per lysimeter. Consequently, a further application of Zn would be needed to prevent Zn deficiencies in the plants of a subsequent crop. The behaviour of the pH and Eh parameters in the soils and leachates did not depend on the natural Zn sources applied. In this study, the easily leachable Zn estimated by BaCl2 extraction was not adequate to predict Zn leaching from the soils in subsequent crops.

Más información

ID de Registro: 5313
Identificador DC: http://oa.upm.es/5313/
Identificador OAI: oai:oa.upm.es:5313
Identificador DOI: 10.1007/s11104-008-9808-9
URL Oficial: http://www.springerlink.com/content/0032-079X
Depositado por: Memoria Investigacion
Depositado el: 30 Nov 2010 11:54
Ultima Modificación: 20 Abr 2016 14:09
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