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Almendros García, Patricia and González Rodríguez, Demetrio and Obrador Pérez, Ana Francisca and Álvarez Álvarez, José Manuel (2008). Residual zinc forms in weakly acidic and calcareous soil after and oilseed flax crop. In: "European Geosciencies Union General Assembly 2008", 13/04/2008-18/04/2008, Viena (Austria). ISBN 1029-7006.
Title: | Residual zinc forms in weakly acidic and calcareous soil after and oilseed flax crop |
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Author/s: |
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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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The different chemical forms of Zn found in soils exhibit different levels of reactivity, solubility and availability to plants. Sequential extraction procedures (SEP) are applied in soils to partition metal into operationally-defined geochemical fractions. The bioavailability of metals in soils is related to these chemical fractions and not to total metal content. Furthermore, single extraction methods, such as DTPA or Mehlich-3, are commonly used to predict Zn availability to plants. Other, more recently developed, method that try to simulate the conditions of the soil rhizosphere use a mixture of low-molecular-weight organic acids (LMWOAs) as extractants. According to various researchers, the BaCl2 reagent only extracts elements which are physically adsorbed on particles and it can be used to estimate the easily leachable Zn portion. Flax (Linum usitatisimum L.) is a major oilseed meadow crop grown throughout the world and is more sensitive to Zn deficiency than cereal crops such is wheat. The objectives of this study were to determine soil chemical Zn pools, potential Zn availability and easily leachable Zn in two residual soils after a flax harvest.
Item ID: | 3662 |
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DC Identifier: | https://oa.upm.es/3662/ |
OAI Identifier: | oai:oa.upm.es:3662 |
Official URL: | http://www.cosis.net/abstracts/EGU2008/12479/EGU20... |
Deposited by: | Memoria Investigacion |
Deposited on: | 07 Jul 2010 08:59 |
Last Modified: | 20 Apr 2016 13:10 |