农业环境科学学报Issue(4)：715-720,6.DOI:10.11654/jaes.2014.04.014
立体休闲翻耕降低土壤中氟磺胺草醚残留污染的研究
Soil Layer Replacement Reduced Fomesafen Residue in Soil
摘要
Abstract
Replacing surface with subsoil could enhance degradation of organic pollutants in soils. In this study, fomesafen degradation, mi-crobial dynamics and sugar beet damages were investigated under different tillage methods using high performance liquid chromatography and biological assay. Residue of fomesafen in soil decreased by 79% under soil layer replacement, whereas by 46% under the conventional tillage. Compared with the conventional tillage, the number of fungi in 0 cm to 10 cm, 10 cm to 20 cm, and 20 cm to 30 cm soil layers and actinomycetes in 0 cm to 10 cm soil layer were greater under soil layer replacement. The recovery rates of soil bacteria, fungi and actino-mycetes were 4%, 29% and 12%, respectively. In soil layer replacement treatment, the emergence rate, plant height, chlorophyll and fresh weight of sugar beet increased by 12.89%, 58.50%, 72.29% and 41.78%, respectively, compared with the conventional tillage. These results suggest that soil layer replacement could be an effective way to remediate soils contaminated with fomesafen.关键词
立体休闲翻耕/氟磺胺草醚/土壤/残留Key words
soil layer replacement/fomsafen/soil/residue分类
资源环境引用本文复制引用
祖永平,白杰,张忠亮,焦梓洲,李相全,陶波..立体休闲翻耕降低土壤中氟磺胺草醚残留污染的研究[J].农业环境科学学报,2014,(4):715-720,6.基金项目
国家自然科学基金 （）
