Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity
We investigated sulphate application, different statuses of soil microbial activity and their joint effects as variables associated with changes in potentially plant-available selenium (Seppa) and soil Se fractionation during the course of an incubation study. The time-resolved behaviour of added se...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2019-09-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201909-0007_role-of-sulphate-in-affecting-soil-availability-of-exogenous-selenate-seo42-under-different-statuses-of-soi.php |
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| author | Lukáš Praus Jiřina Száková |
| author_facet | Lukáš Praus Jiřina Száková |
| author_sort | Lukáš Praus |
| collection | DOAJ |
| description | We investigated sulphate application, different statuses of soil microbial activity and their joint effects as variables associated with changes in potentially plant-available selenium (Seppa) and soil Se fractionation during the course of an incubation study. The time-resolved behaviour of added selenate (400 µg Se/kg as Na2SeO4) in two agricultural soils was elucidated by means of single extraction (50 mmol/L NH4H2PO4), sequential extraction procedure (SEP) and chemical speciation analysis in phosphate extracts. The decrease in phosphate-extractable Se, a consequence of soil aging, was inhibited by sulphate (by 34% and 29% in Chernozem and Cambisol, respectively) and by gamma-irradiation (by 46% and 20% in Chernozem and Cambisol, respectively) after 72 days of incubation as compared to the control treatments. Glucose amendment dramatically decreased Seppa only in the Chernozem. After 1 year, the initial soil treatment with respect to inhibited or stimulated microbially-mediated processes substantially controlled the distribution pattern of exogenous Se as observed using the SEP. Application of sulphur fertilisers and sources of labile organic matter is thus an essential agronomic practice to correct unfavourable amounts of Seppa. |
| first_indexed | 2024-04-10T08:08:19Z |
| format | Article |
| id | doaj.art-3646aeb74fb2437e8801a023880e8258 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:08:19Z |
| publishDate | 2019-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-3646aeb74fb2437e8801a023880e82582023-02-23T03:46:46ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682019-09-0165947047610.17221/397/2019-PSEpse-201909-0007Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activityLukáš PrausJiřina Száková0Department of Agroenvironmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicWe investigated sulphate application, different statuses of soil microbial activity and their joint effects as variables associated with changes in potentially plant-available selenium (Seppa) and soil Se fractionation during the course of an incubation study. The time-resolved behaviour of added selenate (400 µg Se/kg as Na2SeO4) in two agricultural soils was elucidated by means of single extraction (50 mmol/L NH4H2PO4), sequential extraction procedure (SEP) and chemical speciation analysis in phosphate extracts. The decrease in phosphate-extractable Se, a consequence of soil aging, was inhibited by sulphate (by 34% and 29% in Chernozem and Cambisol, respectively) and by gamma-irradiation (by 46% and 20% in Chernozem and Cambisol, respectively) after 72 days of incubation as compared to the control treatments. Glucose amendment dramatically decreased Seppa only in the Chernozem. After 1 year, the initial soil treatment with respect to inhibited or stimulated microbially-mediated processes substantially controlled the distribution pattern of exogenous Se as observed using the SEP. Application of sulphur fertilisers and sources of labile organic matter is thus an essential agronomic practice to correct unfavourable amounts of Seppa.https://pse.agriculturejournals.cz/artkey/pse-201909-0007_role-of-sulphate-in-affecting-soil-availability-of-exogenous-selenate-seo42-under-different-statuses-of-soi.phpmicronutrientsoil extractionimmobilisationbioreductionanion competitionsterilisation |
| spellingShingle | Lukáš Praus Jiřina Száková Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity Plant, Soil and Environment micronutrient soil extraction immobilisation bioreduction anion competition sterilisation |
| title | Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity |
| title_full | Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity |
| title_fullStr | Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity |
| title_full_unstemmed | Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity |
| title_short | Role of sulphate in affecting soil availability of exogenous selenate (SeO42-) under different statuses of soil microbial activity |
| title_sort | role of sulphate in affecting soil availability of exogenous selenate seo42 under different statuses of soil microbial activity |
| topic | micronutrient soil extraction immobilisation bioreduction anion competition sterilisation |
| url | https://pse.agriculturejournals.cz/artkey/pse-201909-0007_role-of-sulphate-in-affecting-soil-availability-of-exogenous-selenate-seo42-under-different-statuses-of-soi.php |
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