• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plant and Soil >Effectiveness of low-temperature biochar in controlling the release and leaching of herbicides in soil
【24h】

Effectiveness of low-temperature biochar in controlling the release and leaching of herbicides in soil

机译：低温生物炭在控制除草剂在土壤中的释放和浸出的有效性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Biochars, being good sorbents of organic compounds, can reduce the mobility of pesticides in soil and subsequent pollution to groundwater, but may also impact on the efficacy of soil-applied herbicides. The aim of this study is to seek a potential solution to this problem. We prepared a wood biochar at a relatively low heat treatment temperature (350 A degrees C), and used it as an adsorptive carrier for incorporating the herbicides 2,4-D and acetochlor, and also as a soil amendment. Release experiment through a thin soil layer and leaching experiment through a soil column were used to evaluate the effectiveness of the biochar for controlling the release and leaching of herbicides in soil. The release experiments demonstrated that the low-temperature biochar could control the release of herbicides in soil, and the leaching experiments showed that this biochar significantly reduced the leached amount of herbicides by 1/2 similar to 3/4, depending on the depth (5 similar to 15 cm) of biochar-amended topsoil. High retention of herbicides in the biochar-amended topsoil was observed. The results suggest that the low temperature biochar, if applied properly in soil, may be useful for extending the efficacy of herbicides while controlling their potential pollution.
机译：生物炭是有机化合物的良好吸附剂，可以减少农药在土壤中的移动性并降低对地下水的污染，但也可能影响土壤除草剂的功效。这项研究的目的是寻求解决该问题的潜在方法。我们在较低的热处理温度（350摄氏度）下制备了一种木质生物炭，并将其用作结合除草剂2,4-D和乙草胺的吸附载体，还用作土壤改良剂。通过薄土层的释放试验和土柱的浸出试验，评价了生物炭控制除草剂在土壤中的释放和浸出的有效性。释放实验表明，低温生物炭可以控制除草剂在土壤中的释放，浸出实验表明，根据深度的不同，这种生物炭可将除草剂的浸出量显着减少1/2，类似于3/4（5）约15厘米）的生物炭改良表土。观察到除草剂在生物炭改良表土中的高度保留。结果表明，低温生物炭如果在土壤中适当施用，可能有助于延长除草剂的功效，同时控制其潜在的污染。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号