安徽农业科学2016，Vol.44Issue(14)：232-234,278,4.
组配改良剂对土壤和水稻糙米重金属积累的影响
Effects of Improved Agent on Heavy Metal Accumulation in Soil and Brown Rice
摘要
Abstract
Objective] The aim was to study remediation effect of improved agent on Cd contaminated paddy soils .[Method] A field experiment of improved agent was conducted on a contaminated paddy soil in Chunhua Town ,Changsha County,Hunan Province.Setting up 4 treatments,in-cluding T1 :without improved agent(CK); T2:quick lime (0.1%),fertilizing in soil preparation process; T3:TH01 (0.4%) + quick lime (0.1%),fertilizing in soil preparation process; T4:TH02(0.4%),fertilizing in soil preparation process,quick lime(0.1%) applying at early tillering stage.Effects of adding improved agent on rice yield,heavy metal content and soil heavy metal content were studied.[Result] Rice tiller and grain biomass had no significant difference among 4 treatments; Cd content was lowest in T 3 treatment,Cd content reduced 45.22% and 38.14% in T3 and T4 ,compared with T2 ,Cd content reduced 36.16% and 27.91% in T3 and T4 .In different growth period,stems,leaves and roots Cd content showed linear correlationship with ammonium acetate Cd content .[Conclusion] In order to reduce brown rice Cd content,agro-nomic measures or adding passivator,could be implemented to reduce ammonium acetate Cd content in time after the booting stage of rice into the filling stage.关键词
Cd/组配改良剂/水稻/土壤Key words
Cd/Improved agent/Rice/Soil分类
农业科技引用本文复制引用
林晓燕,熊云武,裴东辉,黄雷,刘登彪,任重,龚亚龙,赵亮,许建新..组配改良剂对土壤和水稻糙米重金属积累的影响[J].安徽农业科学,2016,44(14):232-234,278,4.基金项目
广东省科技计划项目（2015B090904008）；广东省软科学研究计划项目（2014B090903015）；深圳市科技计划项目（CXZZ20140418105252027）；深圳市战略性新兴产业发展专项资金（发改办高技［2013］2556号）；广东省工程技术研究开发中心入库项目（粤科函政字［2013］1589号）。 （）
