文献类型：期刊文章

作　　者：刘兴元[1] 田发祥[2,3] 谢运河[2,3,4] 纪雄辉[2,3,4]

机构地区：[1]广东大众农业科技股份有限公司,广东东莞523169 [2]湖南省土壤肥料研究所,湖南长沙410125 [3]农业部长江中下游平原农业环境重点实验室,湖南长沙410125 [4]中南大学研究生院隆平分院,湖南长沙410125

出　　处：《Agricultural Science & Technology》

年　　份：2015

卷　　号：16

期　　号：7

起止页码：1447-1451

语　　种：中文

收录情况：CAB、CAS、CSA、CSA-PROQEUST、PROQUEST、普通刊

摘　　要：To investigate the effects of Tianshifu soil conditioners on rice growth and their control effects on Cd absorption and accumulation in rice, a test was carded out in the field typically polluted by Cd in Hunan Province. The results showed that the Tianshifu soil conditioner, soil bacterial conditioner and the combination of Tian- shifu soil conditioner and soil bacterial conditioner all could promote rice growth, im- prove rice yield and reduce significantly Cd content in rice grains. In Beishan, the Cd contents in rice grains treated by Tianshifu soil conditioner, soil bacterial condi- tioner and the combination of Tianshifu soil conditioner and soil bacterial conditioner were reduced by 37.63% （P〈0.05）, 32.59% （P〈0.05） and 27.95% （P〈0.05） respec- tively compared with that in rice grains treated by conventional fertilization; In Xiang- tan, the Cd contents in rice grains were reduced by 54.36% （P〈0.05）, 50.19% （P〈 0.05） and 45.22% （P〈0.05） respectively. The rice grains harvested at the two test sites all met the national food safety standards. Considering the control effect on Cd contamination, Tianshifu soil conditioner 〉 combination of Tianshifu soil condi- tioner and soil bacterial conditioner 〉 Tianshifu soil bacterial conditioner. In addition to reducing Cd absorption in rice, as described in the lime application treatment, the application of Tianshifu soil conditioners also inhibited the transportation of Cd from rice straws to rice grains. The Tianshifu soil conditioner, soil bacterial conditioner and combination of Tianshifu soil conditioner and soil bacterial conditioner also effec- tively improved the soil acidity, increased the soil pH value and reduced soil avail- able Cd content to some extent.

关 键 词：CADMIUM Tianshifu soil conditioners  Heavy metals  RICE

分 类 号：S156.2] S511]