中国蔬菜Issue(18)：67-71,5.
除草剂污染堆肥用量对黄瓜生物有效性的影响
Effect of Quantity of Compost Contaminated with Herbicide on Bioavailability of Cucumber
摘要
Abstract
Nowadays chemical weed control is one of the most indispensable methods in modern agriculture.However,the compost or manure would be polluted by herbicide residual in the non-target plants.Improper use of the polluted compost may have serious negative effects on growth of next-stubble crops.In this research,compost contaminated by herbicide was used in nursery substrate with different proportions to investigate the sensitivity levels of the plants. Basically we set 3 conditions to test cucumbers on their germination rate,internode length,height, stem diameter,dry weight,leaf number,leaf area,curl and seedling index after sowing in 45 days.These 3 conditions are non-polluted compost condition(C1),Aminopyralid polluted condition(C2)and Clopyralid polluted condition(C3),and 0,5%,10% and 20% usage of compost are used respectively under these 3 conditions.Results show that the more polluted compost we used,the lower germination rate is. Moreover,symptoms of herbicide damages of cucumber seedling are found from the delicate plant,small and curl leaves.With the same usage of compost,Aminopyralid tends to have more serious influence on cucumber comparing to Clopyralid, which means the more effective herbicide are used in the compost,the graver influence will be presented on the following sensitive plants. So we can draw the following conclusions: the compost contaminated with compound herbicide suppresses the germination rate of cucumber seeds. It can significantly inhibit the growth of seedlings of cucumber and reduce its seedling index at a lower concentration.关键词
除草剂/堆肥/生物有效性Key words
Herbicide/Compost/Bioavailability分类
资源环境引用本文复制引用
王智中,吕潇,杜龙龙,李彦明,Fredrick C. Michel Jr...除草剂污染堆肥用量对黄瓜生物有效性的影响[J].中国蔬菜,2013,(18):67-71,5.基金项目
公益性行业（农业）科研专项（201303079），“十二五”科技支撑计划项目 （）
