Fertilization effect of Cu-EDTA chelate on soil pH and redox conditions in a flooded neutral soil

Álvarez Álvarez, José Manuel and Rico Selas, M.Isabel and González Rodríguez, Demetrio and Almendros García, Patricia (2008). Fertilization effect of Cu-EDTA chelate on soil pH and redox conditions in a flooded neutral soil. In: "European Geosciencies Union General Assembly 2008", 13/04/2008-18/04/2008, Viena (Austria). ISBN 1029-7006.

Description

Title: Fertilization effect of Cu-EDTA chelate on soil pH and redox conditions in a flooded neutral soil
Author/s:
  • Álvarez Álvarez, José Manuel
  • Rico Selas, M.Isabel
  • González Rodríguez, Demetrio
  • Almendros García, Patricia
Item Type: Presentation at Congress or Conference (Article)
Event Title: European Geosciencies Union General Assembly 2008
Event Dates: 13/04/2008-18/04/2008
Event Location: Viena (Austria)
Title of Book: Geophysical Research Abstracts
Date: 2008
ISBN: 1029-7006
Volume: 10
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Química y Análisis Agrícola [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Copper chelates are applied to correct copper micronutrient deficiencies in soils and one of the most commonly used is the synthetic chelate Cu-EDTA (Cuethylenediaminetetraacetate). The effectiveness of chelates is due to their capacity to maintain Cu in the soil solution. This is related to their stability which can be modified by the physico-chemical characteristics of the soil and especially by its pH and redox potential. Under water saturation conditions, a decrease in, or loss of, molecular oxygen leads to redox reactions that influence both the pH of the soil and the chemical forms of the ions and molecules present in the soil solution. An increase in the oxidation potential (Eh) (reducers conditions) influences the mobilization of metals adsorbed onto certain soil fractions because it enhances the concentration of reduced forms and thus the availability of metals in the soil. The aim of this study was to evaluate the effect of the Cu-EDTA chelate on pH and pe (pe=Eh(mv)/59.2) in a flooded neutral soil and to relate this effect to variations in the amount of Cu in the soil solution.

More information

Item ID: 3661
DC Identifier: http://oa.upm.es/3661/
OAI Identifier: oai:oa.upm.es:3661
Deposited by: Memoria Investigacion
Deposited on: 07 Jul 2010 10:43
Last Modified: 20 Apr 2016 13:10
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