Characterization of humic fractions in leachates from soil under organic and conventional management and their interactions with the root zone

T Vujinovic; M Contin; Stefano Cesco; R Pinton; N Tomasi; P Ceccon; Nobili De

doi:10.1007/978-94-007-5634-2

$Characterization of humic fractions in leachates from soil under organic and conventional management and their interactions with the root zone$

Conference proceeding

Characterization of humic fractions in leachates from soil under organic and conventional management and their interactions with the root zone

T Vujinovic, M Contin, Stefano Cesco, R Pinton, N Tomasi, P Ceccon and Nobili De

Functions of natural organic matter in changing environment: Focuses on the functions of natural organic matter in a changing environment, pp.489-494

IHSS 2012 - 16th Meeting of the International Humic Substances Society (Hangzhou, 09/09/2012 - 14/09/2012)

2012

DOI: https://doi.org/10.1007/978-94-007-5634-2

Handle:

https://hdl.handle.net/10863/23787

Abstract

Humic fractions were shown to be closely involved in gene expression and promotion of different PM H+-ATPase isoforms, as well as in lateral root development, indicating an enhanced nutrient absorption capacity of the plant root system. HPLC-SEC confirmed that water-soluble humic substances (WSHS) correspond to a subfraction of the fulvic fraction of humic substances. This was supported by E 465/E 665 ratios higher than 8.5. These ratios generally increased over the growing season in cultivated soils but showed significant differences between conventionally and organically managed bare soils. FTIR data and the analytical quantification of carboxyls confirmed relevant structural changes in bare soil under both organic and conventional farming management. Absorption intensities ratios at 1,590–1,570 cm−1 and 1,440–1,380 cm−1 showed the predominant aliphatic character of these molecules.

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https://link.springer.com/chapter/10.1007/978-94-007-5634-2_89View

Details

Title: Characterization of humic fractions in leachates from soil under organic and conventional management and their interactions with the root zone
Creators: T Vujinovic
M Contin
Stefano Cesco
R Pinton
N Tomasi
P Ceccon
Nobili De
Publication Details: Functions of natural organic matter in changing environment: Focuses on the functions of natural organic matter in a changing environment, pp.489-494
Editor(s): Xu J, Wu J, He Y
ISBN: 9789400756335
EISBN: 9789400756342
Conference: IHSS 2012 - 16th Meeting of the International Humic Substances Society (Hangzhou, 09/09/2012 - 14/09/2012)
Publisher: Springer
Heidelberg, New York, Dordrecht, London
Number of pages: 6
Identifiers: 978-94-007-5633-5
(UNIBZ)1003400
991006060872501241
Scopus ID: 2-s2.0-84932621032
Academic Unit: Faculty of Science and Technology
Language: English
Resource Type: Conference proceeding
Author Names String: Vujinovic T, Contin M, Cesco S, Pinton R, Tomasi N, Ceccon P, De Nobili
Additional Description: Editors/Supervisors: Xu J, Wu J, He Y

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