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

Álvarez Álvarez, José Manuel and Almendros García, Patricia and 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.

Description

Title: Residual effects of natural Zn chelates on navy bean response, Zn leaching and soil status
Author/s:
  • Álvarez Álvarez, José Manuel
  • Almendros García, Patricia
  • González Rodríguez, Demetrio
Item Type: Article
Título de Revista/Publicación: Planta and Soil
Date: March 2009
ISSN: 0032-079X
Volume: 317
Subjects:
Freetext Keywords: Availability - Zn chelates - Leaching - Navy bean - Speciation - Residual effect
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Química y Análisis Agrícola [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 5313
DC Identifier: http://oa.upm.es/5313/
OAI Identifier: oai:oa.upm.es:5313
DOI: 10.1007/s11104-008-9808-9
Official URL: http://www.springerlink.com/content/0032-079X
Deposited by: Memoria Investigacion
Deposited on: 30 Nov 2010 11:54
Last Modified: 20 Apr 2016 14:09
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