Influence of soil type and natural Zn chelates on flax response, tensile properties and soil Zn availability

Álvarez Álvarez, José Manuel (2010). Influence of soil type and natural Zn chelates on flax response, tensile properties and soil Zn availability. "Plant and soil", v. 328 (n. 1-2); pp. 217-233. ISSN 0032-079X. https://doi.org/10.1007/s11104-009-0103-1.

Description

Title: Influence of soil type and natural Zn chelates on flax response, tensile properties and soil Zn availability
Author/s:
  • Álvarez Álvarez, José Manuel
Item Type: Article
Título de Revista/Publicación: Plant and soil
Date: March 2010
ISSN: 0032-079X
Volume: 328
Subjects:
Freetext Keywords: Bioavailability - Chlorophyll - Crude fibre - Fertilizer - Flax - pH - Redox potential - Soil Zn status - Tensile properties - Zn chelates
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

A greenhouse experiment was conducted on weakly acidic and calcareous soils to evaluate the relative efficiencies of three natural Zn chelates [Zn-aminelignosulphonate (Zn-AML), Zn-polyhydroxyphenylcarboxylate (Zn-PHP) and Zn-S,S-ethylenediaminedisuccinate (Zn-S,S-EDDS)] applied to a crop textile flax (Linum ussitatisimum L.) at application rates of 0, 5 and 10 mg Zn kg−1. In the flax plant, the following parameters were determined: dry matter yield, soluble and total Zn concentrations in leaf and stem, chlorophyll, crude fibre, and tensile properties. For the different soil samples, the following parameters were determined: available Zn (DTPA-AB and Mehlich-3 extractable Zn), easily leachable Zn (BaCl2-extractable Zn), the distribution of Zn fractions, pH and redox potential. On the basis of the use of added Zn by flax, or Zn utilization, it would seem recommendable to apply Zn-S,S-EDDS at the low Zn rate in both soils. In contrast, adding the high Zn rate of this chelate to the weakly acidic soil produced an excessive Zn concentration in the plant, which caused a significant decrease in both dry matter yield and chlorophyll content. Furthermore, assessing available Zn with the DTPA-AB method proved the best way of estimating the level of excess Zn in flax plants. The soluble Zn concentration, which was established with 2-(N-morpholino)ethanesulfonic acid reagent (MES), of plant fresh and dry matter could be used as an alternative way of diagnosing the nutritional status of Zn in flax plants. In this experiment, the highest soil pHs were associated with the lowest redox potentials, which coincided with the smallest amounts of available Zn and water soluble Zn in soil, and the lowest levels of Zn uptake by flax plants.

More information

Item ID: 8526
DC Identifier: http://oa.upm.es/8526/
OAI Identifier: oai:oa.upm.es:8526
DOI: 10.1007/s11104-009-0103-1
Official URL: http://www.springerlink.com/content/n1kg28u352660324/
Deposited by: Memoria Investigacion
Deposited on: 12 Aug 2011 10:33
Last Modified: 20 Apr 2016 17:16
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