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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (21): 198-201.

所属专题： 土壤重金属污染； 玉米

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

硫代硫酸钾萃取土壤中重金属及其对玉米苗期的毒理效应

张伟华 奉小优 皮荷杰 曾清如   

  • 收稿日期:2010-04-08 修回日期:2010-05-31 出版日期:2010-11-05 发布日期:2010-11-05

Effects of Potassium thiosulfate on heavy metal transformation in the soil and its toxic impact on maize seedling

  • Received:2010-04-08 Revised:2010-05-31 Online:2010-11-05 Published:2010-11-05

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摘要：

通过在土壤中施入不同浓度的硫代硫酸钾，研究其对土壤中Cu2+、Zn2+、Mn2+、Al3+元素的交换态含量。并采用土培试验，通过加入硫代硫酸钾研究其对玉米吸收重金属的影响。结果表明：Cu2+、Zn2+、Mn2+的浓度随着硫代硫酸钾施入量的增加而增加，Al3+的浓度随着硫代硫酸钾施入量的增加而降低。高浓度的硫代硫酸钾有一定的毒性，能抑制植物的生长发育，显著降低植物的生物量。

关键词: 牙鲆(Paralichthys olivaceus)胚胎, 牙鲆(Paralichthys olivaceus)胚胎, 显微注射, 冷冻保存

Abstract:

A study was carried out to determine the different concentration of potassium thiosulfate inside of the solid which affect the exchange condition content of Cu2+,Zn2+, Mn2+，Al3+. A pot experiment studied the effect of different concentration K2S2O3 on the content of heavy metals in maize.The result indicated that the consistency of Cu2+,Zn2+,Mn2+ 's increase along with the potassium thiosulfate which inputs to increase, the consistency of Al3+'s increase along with the potassium thiosulfate which inputs to reduce. The high content of K2S2O3 contains certain toxicity itself,which can inhibit the growth of plant and reduce the biomass greatly