Dissipation and Residues of Thiram in Potato and Soil
The residue levels of thiram during potato cultivation in open field were evaluated. Thiram residues were determined by methylation derivation method with high performance liquid chromatography (HPLC). Wettable powder (WP) formulation containing 25% thiram was applied at 2320 g active gradient hm−2...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/623847 |
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| author | Shaowen Liu Aijuan Bai Li Zhou Chuanshan Yu Yanjie Li Sufang Fan Canping Pan |
| author_facet | Shaowen Liu Aijuan Bai Li Zhou Chuanshan Yu Yanjie Li Sufang Fan Canping Pan |
| author_sort | Shaowen Liu |
| collection | DOAJ |
| description | The residue levels of thiram during potato cultivation in open field were evaluated. Thiram residues were determined by methylation derivation method with high performance liquid chromatography (HPLC). Wettable powder (WP) formulation containing 25% thiram was applied at 2320 g active gradient hm−2 (a.i. hm−2) dosage for the dissipation study. The decline rate in potato leave and soil followed first-order kinetics equation, and the half-life ranged from 2.8 to 5.4 days and 2.6 to 9.9 days, respectively. In terminal residue, the thiram was sprayed at 580 g a.i. hm−2 (low concentration, recommended dosage) and 1160 g a.i. hm−2 (high concentration, double of recommended dosage). The residues of thiram in potato and soil samples collected in the field at preharvest interval of 21 days and 30 days were all below 0.02 mg kg−1. The results show that thiram possesses low dietary risk in potato at harvest according to supervised residue field trial. It may be safe when used at recommended rate of application. |
| format | Article |
| id | doaj-art-6016e2095a9148e3966746adbdf7b68d |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-6016e2095a9148e3966746adbdf7b68d2025-02-03T01:06:56ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/623847623847Dissipation and Residues of Thiram in Potato and SoilShaowen Liu0Aijuan Bai1Li Zhou2Chuanshan Yu3Yanjie Li4Sufang Fan5Canping Pan6Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaDepartment of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaDepartment of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaDepartment of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaDepartment of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaDepartment of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaDepartment of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, ChinaThe residue levels of thiram during potato cultivation in open field were evaluated. Thiram residues were determined by methylation derivation method with high performance liquid chromatography (HPLC). Wettable powder (WP) formulation containing 25% thiram was applied at 2320 g active gradient hm−2 (a.i. hm−2) dosage for the dissipation study. The decline rate in potato leave and soil followed first-order kinetics equation, and the half-life ranged from 2.8 to 5.4 days and 2.6 to 9.9 days, respectively. In terminal residue, the thiram was sprayed at 580 g a.i. hm−2 (low concentration, recommended dosage) and 1160 g a.i. hm−2 (high concentration, double of recommended dosage). The residues of thiram in potato and soil samples collected in the field at preharvest interval of 21 days and 30 days were all below 0.02 mg kg−1. The results show that thiram possesses low dietary risk in potato at harvest according to supervised residue field trial. It may be safe when used at recommended rate of application.http://dx.doi.org/10.1155/2015/623847 |
| spellingShingle | Shaowen Liu Aijuan Bai Li Zhou Chuanshan Yu Yanjie Li Sufang Fan Canping Pan Dissipation and Residues of Thiram in Potato and Soil Journal of Chemistry |
| title | Dissipation and Residues of Thiram in Potato and Soil |
| title_full | Dissipation and Residues of Thiram in Potato and Soil |
| title_fullStr | Dissipation and Residues of Thiram in Potato and Soil |
| title_full_unstemmed | Dissipation and Residues of Thiram in Potato and Soil |
| title_short | Dissipation and Residues of Thiram in Potato and Soil |
| title_sort | dissipation and residues of thiram in potato and soil |
| url | http://dx.doi.org/10.1155/2015/623847 |
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