Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant
The development of soil limiting values of the protection of the quantity and mainly quality of the crop production tends from empiric values towards critical values, based on ecotoxicity. We present an attempt to derive transfer functions by the means of multiple regression analysis. The substituti...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2002-05-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-200205-0001_critical-values-of-trace-elements-in-soils-from-the-viewpoint-of-the-transfer-pathway-soil-plant.php |
| _version_ | 1797898446763458560 |
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| author | E. Podlešáková J. Němeček R. Vácha |
| author_facet | E. Podlešáková J. Němeček R. Vácha |
| author_sort | E. Podlešáková |
| collection | DOAJ |
| description | The development of soil limiting values of the protection of the quantity and mainly quality of the crop production tends from empiric values towards critical values, based on ecotoxicity. We present an attempt to derive transfer functions by the means of multiple regression analysis. The substitution of trace elements contents in crops in the prediction equations for fodder or food standards or phytotoxicity limits satisfies the present ecotoxicological demands. We preferred polyfactor relations to simple ones. The exceeding of reference values must be verified by the determination of the hazardous transfer in the field. Therefore the reference values are called testing values. They were derived especially for Cd, Pb, As, Cu, Zn, Ni and Mn. For some trace elements, only protective values can be set up (especially for Cr, Hg, but also for Tl, Be, V). They reflect minimum values that guarantee growing crops without any risks. Experimental data (pot trials) were compared with results obtained in field investigations. The resulting critical values were also compared with the values proposed in Germany. |
| first_indexed | 2024-04-10T08:14:37Z |
| format | Article |
| id | doaj.art-e237cdf330534d18ad5f28c09ce541da |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:14:37Z |
| publishDate | 2002-05-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-e237cdf330534d18ad5f28c09ce541da2023-02-23T03:44:45ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682002-05-0148519320210.17221/4224-PSEpse-200205-0001Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plantE. Podlešáková0J. Němeček1R. Vácha2Research Institute for Soil and Water Conservation, Prague, Czech RepublicResearch Institute for Soil and Water Conservation, Prague, Czech RepublicResearch Institute for Soil and Water Conservation, Prague, Czech RepublicThe development of soil limiting values of the protection of the quantity and mainly quality of the crop production tends from empiric values towards critical values, based on ecotoxicity. We present an attempt to derive transfer functions by the means of multiple regression analysis. The substitution of trace elements contents in crops in the prediction equations for fodder or food standards or phytotoxicity limits satisfies the present ecotoxicological demands. We preferred polyfactor relations to simple ones. The exceeding of reference values must be verified by the determination of the hazardous transfer in the field. Therefore the reference values are called testing values. They were derived especially for Cd, Pb, As, Cu, Zn, Ni and Mn. For some trace elements, only protective values can be set up (especially for Cr, Hg, but also for Tl, Be, V). They reflect minimum values that guarantee growing crops without any risks. Experimental data (pot trials) were compared with results obtained in field investigations. The resulting critical values were also compared with the values proposed in Germany.https://pse.agriculturejournals.cz/artkey/pse-200205-0001_critical-values-of-trace-elements-in-soils-from-the-viewpoint-of-the-transfer-pathway-soil-plant.phptrace elementsprotection of crop quality and quantitycritical soil reference values |
| spellingShingle | E. Podlešáková J. Němeček R. Vácha Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant Plant, Soil and Environment trace elements protection of crop quality and quantity critical soil reference values |
| title | Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant |
| title_full | Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant |
| title_fullStr | Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant |
| title_full_unstemmed | Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant |
| title_short | Critical values of trace elements in soils from the viewpoint of the transfer pathway soil - plant |
| title_sort | critical values of trace elements in soils from the viewpoint of the transfer pathway soil plant |
| topic | trace elements protection of crop quality and quantity critical soil reference values |
| url | https://pse.agriculturejournals.cz/artkey/pse-200205-0001_critical-values-of-trace-elements-in-soils-from-the-viewpoint-of-the-transfer-pathway-soil-plant.php |
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