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The effect of over 50 years of liming on soil aluminium forms in a Retisol

Published online by Cambridge University Press:  28 March 2019

Z. Kryzevicius*
Affiliation:
Vėžaičiai Branch of Lithuanian Research Centre for Agriculture and Forestry, Gargždų St. 29, Vėžaičiai, Klaipėda distr., Lithuania Klaipeda University, Faculty of Marine Technology and Natural Sciences, Klaipėda, Lithuania
D. Karcauskiene
Affiliation:
Vėžaičiai Branch of Lithuanian Research Centre for Agriculture and Forestry, Gargždų St. 29, Vėžaičiai, Klaipėda distr., Lithuania
E. Álvarez-Rodríguez
Affiliation:
Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Lugo, Spain
A. Zukauskaite
Affiliation:
Klaipeda University, Faculty of Marine Technology and Natural Sciences, Klaipėda, Lithuania
A. Slepetiene
Affiliation:
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Akademija, Kėdainiai distr., Lithuania
J. Volungevicius
Affiliation:
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Akademija, Kėdainiai distr., Lithuania
*
Author for correspondence: Z. Kryzevicius, E-mail: zilvinas.kryzevicius@lammc.lt

Abstract

The aim of the current study was to evaluate the effect of long-term (56 years) liming on changes in soil pH and aluminium (Al) forms in the soil profile compared with an unlimed soil in a sandy moraine loam of a Dystric Glossic Retisol. Long-term liming had a significant influence on soil acidity of the whole profile, causing increased pH values in the following horizons to 120 cm depth: the ploughing horizon (Ahp), where humus accumulates; the eluvial horizon (E), from which clay particles are leached; a horizon having retic properties and predominantly coarser-textured albic material (E/B); and a horizon with retic properties and predominantly finer-textured argic material (B/E). In the solid phase, non-crystalline Al in limed soil decreased in the Ahp horizon; meanwhile a decrease in total organically bound Al (Alp) and organo–Al complexes of low to medium stability was detected in the deeper El and ElBt horizons. High-stability Al complexes with organic matter were the predominant form of Alp in the unlimed and limed whole soil profile. The concentration of total water-soluble Al ranged from 0.61 to 0.80 mg/l in the limed soil profile but 0.62–1.15 mg/l in the unlimed soil. The highest concentration of exchangeable Al was determined in the upper horizons of the unlimed soil profile and the concentration decreased significantly in the same horizons of the limed soil profile. Long-term liming promoted changes in Al compounds throughout the soil profile.

Information

Type
Crops and Soils Research Paper
Copyright
Copyright © Cambridge University Press 2019 

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