دورية أكاديمية
Effect of pyrochar and hydrochar amendments on the mineralization of the herbicide isoproturon in an agricultural soil.
| العنوان: | Effect of pyrochar and hydrochar amendments on the mineralization of the herbicide isoproturon in an agricultural soil. |
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| المؤلفون: | Eibisch N; Thünen-Institute of Climate-Smart Agriculture, 38116 Braunschweig, Germany; Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Institute of Soil Ecology, 85764 Neuherberg, Germany., Schroll R; Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Institute of Soil Ecology, 85764 Neuherberg, Germany. Electronic address: schroll@helmholtz-muenchen.de., Fuß R; Thünen-Institute of Climate-Smart Agriculture, 38116 Braunschweig, Germany. |
| المصدر: | Chemosphere [Chemosphere] 2015 Sep; Vol. 134, pp. 528-35. Date of Electronic Publication: 2014 Dec 24. |
| نوع المنشور: | Comparative Study; Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Oxford : Elsevier Science Ltd Original Publication: Oxford, New York, : Pergamon Press. |
| مواضيع طبية MeSH: | Charcoal/*analysis , Herbicides/*chemistry , Phenylurea Compounds/*chemistry , Soil/*chemistry , Soil Pollutants/*chemistry, Agriculture ; Charcoal/chemistry |
| مستخلص: | Carbon (C)-rich, solid products from pyrolysis (pyrochars) and hydrothermal carbonization (HTC, hydrochars) are expected to reduce the bioavailability and bioaccessibility of pesticides as side effect of soil addition. To compare effects of different feedstocks (digestate, miscanthus, woodchips) and production processes (pyrolysis at 750°C, HTC at 200°C and 250°C), (14)C-labeled isoproturon (IPU) was applied at 0.75 kg ha(-)(1) to loamy sand amended either with 0.5% or 5% pyrochars or hydrochars, which was then incubated for 50d. Mineralization of IPU was measured as (14)C-CO2 released from soil-char composites. Pore-water and methanol extractable (14)C-IPU was quantified as well as non-extractable (14)C-residues (NER). Furthermore, C mineralization of pyrochars, hydrochars and feedstocks was studied to assess the relationship between IPU bioaccessibility and char decomposability. In pure soil, 8.1% of applied IPU was mineralized after 50d. This was reduced more strongly in pyrochar treatments (81 ± 6% reduction) than in hydrochar treatments (56 ± 25% reduction). Different feedstocks had no significantly different effect when 5% char was added, but their effect was significant and dependent on the production process in 0.5% amendments. Pesticide binding can occur by surface sorption as well as by diffusion and subsequent occlusion in micropores. The latter can be expected to result in high amounts of NER, as it was observed in the pyrochar treatments. Hydrochars were less stable than pyrochars and contained lower amounts of NER. Thus, in hydrochar amended soils, better accessibility of IPU to microbial degradation may be a result of full char decomposition within decades ensuring controlled pesticide degradation. (Copyright © 2014 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Biochar; Hydrothermal carbonization; Pesticide; Pyrolysis; Sorption |
| المشرفين على المادة: | 0 (Herbicides) 0 (Phenylurea Compounds) 0 (Soil) 0 (Soil Pollutants) 0 (biochar) 16291-96-6 (Charcoal) 66066K098P (isoproturon) |
| تواريخ الأحداث: | Date Created: 20141229 Date Completed: 20160129 Latest Revision: 20181202 |
| رمز التحديث: | 20240513 |
| DOI: | 10.1016/j.chemosphere.2014.11.074 |
| PMID: | 25543158 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1298 |
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| DOI: | 10.1016/j.chemosphere.2014.11.074 |