Open AccessStatus and Speciation of Silicon and Its Interaction with Physico-Chemical Properties
Author(s) -
Isaiah Ufuoma Efenudu,
Ehi Robert Orhue,
Ogochukwu Jennifer Ikeh,
Michael Aimiesomon Erhayimwen,
Blessing James
Publication year - 2021
Publication title -
asian journal of environment and ecology
Language(s) - English
Resource type - Journals
ISSN - 2456-690X
DOI - 10.9734/ajee/2021/v14i230199
Subject(s) - fractionation , silicon , silt , organic matter , adsorption , chemistry , fraction (chemistry) , environmental chemistry , genetic algorithm , soil organic matter , inorganic chemistry , soil water , organic chemistry , soil science , geology , ecology , biology , paleontology
The effectiveness of three different extractants soil mixtures—HCl, HCl + H2S04, and DTPA-TEA, in order to determine Si from soil and the forms of Silicon as influenced by different parent materials under acidic medium.
Seven forms of Silicon; namely water soluble, specifically adsorbed, oxides bound, organic matter bound, exchangeable, residual, total viz sequential fractionation.
Extractable Si value established in this study was (50.0 mg kg-1), indicating negative effect on plant physiology. The physico-chemical properties decreased significantly with increase in soil depth vs soil parent materials. In addition, the forms of Si in the parent materials decreased in the pattern RES, bound residual fractions > EXC, soluble & exchangeable fractions > OM, organic matter fraction.
Among the properties the silt fraction, pH & OM significantly and positively correlated with the forms of silicon, with negative correlation vs clay which maybe due to silicon adsorption by clayey fraction of the soil (redox). Therefore the soil maybe be maintained and conserved for farming activities.