摘要
选择湖南攸县2块典型Cd污染稻田,研究施用富含硅的碱性钾硅肥对杂交晚稻吸收Cd及其在植株体内分配的影响。结果表明,施用钾硅肥可提高土壤p H值,降低土壤有效态Cd含量,减少水稻对Cd的吸收和稻米对Cd的积累,阻控水稻植株体内的Cd向籽粒转运,降低Cd在糙米中的分配比例。
The effects of the potassium-silicon fertilizer （ alkaline and rich in Si） were studied on the Cd uptake and its distribution in plant parts of late hybrid rice in two plots of paddy field with Cd contaminated soil in Youxian County, Hunan Province. The results showed that application of potassium-silicon fertilizer increased the soil pH values, decreased the available soil Cd content, lessened the Cd uptake of rice plants and the accumulation of Cd in rice grains and prevented the transportation of Cd from stems to grains, resulting in a lower Cd content in brown rice of late hybrid rice.
出处
《杂交水稻》
CSCD
北大核心
2014年第6期73-77,共5页
Hybrid Rice
基金
国家科技支撑计划(2013BAB03B00)
湖南省农业科学院创新项目(2013TD05)
关键词
杂交晚稻
钾硅肥
镉污染稻田
有效态镉
稻米镉含量
late hybrid rice
potassium-silicon fertilizer
Cd contaminated soil
available Cd
Cd content in brown rice
