摘要
生态农业修复是最直接有效的镉污染农田污染治理的方法。该方法在筛选镉低积累农作物品种的同时,还需配套合理的土壤处理措施和栽培方法,以更有效的实现镉污染大田的利用和生态修复。试验在筛选出镉低积累甘薯品种"浙紫3号"的基础上,分析了不同土壤调理剂、对甘薯生长、大田土壤和甘薯镉积累的影响。实验结果发现腐植酸不仅能促使"浙紫3号"增产,还能有效抑制甘薯对土壤镉的吸收和积累,同时可以有效改良土壤结构,降低土壤单位重量的镉含量,可做为镉污染大田土壤调理剂的最优选择。
The most direct and effective method for the treatment of cadmium(Cd) pollution in soil is the agricultural ecologicalrestoration, which need to screen crop varieties with the low Cd accumulation and find reasonable measures of soil treatment andcorresponding cultivation techniques, in order to achieve more efficient use and ecological restoration of the Cd polluted farmland. Thistrial had screened sweet potato varieties “Zhezi No.3” with low Cd accumulation. In the meanwhile, the effects of different soil conditioneron the growth of sweet potato, the Cd contamation of soil and sweet potato were studied. This trial had found that humic acid was theoptimal Cd contaminated field soil conditioner. It can promoted “Zhezi No.3” production, inhibit the Cd absorption and accumulation insweet potato on the soil, improve soil structure effectively, reduce soil Cd content per unit weight, optimal choice Cd contaminated fieldsoil conditioning agent.
作者
张超凡
张道微
黄艳岚
周虹
张亚
董芳
ZHANG Chao-fan;ZHANG Dao-wei;HUANG Yan-lan;ZHOU Hong;ZHAGN Ya;Fang Dong(Hunan Crop Research Institute, Changsha 410125, PRC;Longping Branch Graduate School, Central South University, Changsha 410125, PRC)
出处
《湖南农业科学》
2016年第12期35-37,共3页
Hunan Agricultural Sciences
基金
国家甘薯产业技术体系资助(CARS-11-C-16)
湖南省财政专项(湘财农指[2014]180号)
关键词
镉污染
生态农业修复
土壤调理剂
浙紫3号
cadmium pollution
ecological agriculture restoration
soil conditioner
Zhezi No. 3
