| 摘要: |
| 为降低有机肥料使用过程中痕量除草剂对农业安全生产的风险,采用市售基质、普通堆肥和受除草剂污染的堆肥为试材,设置4个处理(无污染堆肥、二氯吡啶酸污染堆肥、氟乐灵污染堆肥和环丙嘧啶酸污染堆肥),在0、5%、10% 和20% 不同堆肥用量条件下,以番茄的出苗率和播种后45 d 时植株的株高、叶片面积、茎粗、植株干质量、根长和壮苗指数为评价指标判断除草剂污染堆肥对番茄种子萌发及植株生长的影响。结果表明,除草剂污染堆肥对番茄种子的萌发及生长都有一定的抑制作用,随污染堆肥用量的增加抑制作用增加,且对作物产物抑制作用的污染堆肥用量及抑制作用大小因除草剂种类而异,二氯吡啶酸污染堆肥对番茄生长的影响最大。植物生长指标茎粗、植物干质量和根长较株高和叶面积而言,对除草剂污染更敏感。 |
| 关键词: 番茄 除草剂 堆肥 生物有效性 |
| DOI：10.11841/j.issn.1007-4333.2015.01.011 |
| 投稿时间：2014-04-19 |
| 基金项目:"十二五"科技支撑计划项目(2012BAD14B01);公益性行业(农业)科研专项(201303079) |
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| Influence of herbicide-contaminated compost on tomato |
|
CHANG Rui-xue1, WANG Zhi-zhong1, HAN Xue1, LI Yan-ming1, Frederick C MICHEL2
|
| (1.College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;2.Department of Food, Agriculture and Biological Engineering, Ohio State University, Wooster 44691, OH, USA) |
| Abstract: |
| Herbicides residue in organic fertilizer has been considered as a serious threat to crop.In order to reduce the risks,we set up a test with 4 treatments of non-polluted compost (A1),clopyralid-polluted compost (A2),trifluralin-polluted compost (A3) and imprelis-polluted compost (A4) at usage rates of 0,5%,10% and 20% respectively.The aim was to survey the effects of the compost on germination rate,height,internode length,stem diameter,dry weight,root length,seedling index of 45 days tomato.The results showed that both tomato germination and growth rate were inhibited by the herbicide-polluted composts,depending on the herbicides.The inhibitory effect increased with increasing dose rate.Clopyralid-polluted compost had the most significant inhibitory effect.Stem diameter,plant dry weight and root length were more sensitive to herbicide pollution compared to plant height and leaf area. |
| Key words: tomato herbicide compost bioavailability |
