期刊论文

Effects of Conditioning Agents and Agronomic Measures on Cadmium Uptake by Rice in Polluted Rice Fields

中文

中国农业科学

0578-1752

2020

53

3

574-584

10.3864/j.issn.0578-1752.2020.03.010

国家重点研发计划（2017YFD0801505）； 湖南省科技计划项目重点研发计划项目（2016NK2017）； 长沙市科技计划项目（kq1801025）；

本校为第一机构

【目的】探究水分管理、调理剂措施和组合措施对污染稻田稻米降Cd效果,旨在探索出不显著降低水稻产量前提下,能更高效降低土壤Cd生物有效性和稻米中Cd含量的方法。【方法】在湖南省株洲市选择中度Cd污染稻田开展田间小区水稻试验。试验中水稻种植两季,早稻品种为中嘉早17,晚稻为泰优390。试验分为6组,分别为水分管理(T2)处理、施用硅肥(T3)处理、施用竹炭处理(T4)、施用硅肥结合水分管理(T5)处理、施用竹炭结合水分管理(T6)处理和1个试验对照(T1),重复3次。【结果】试验各处理对稻田土壤有效态Cd含量均有降低,竹炭结合水分管理(T6)处理对两季水稻土壤均有显著降低,硅肥结合水分管理(T5)处理对晚...

【Objective】How to safely use cadmium (Cd) to prevent it from contaminating cultivated land to produce up to standard rice is a hot topic for scholars. This paper mainly explored the effects of water management, conditioning agent measures and combined measures on the Cd reduction of rice in polluted rice fields. It aimed to reduce the bioavailability of soil Cd and the Cd content in rice under the premise of not significantly reducing rice yield【Method】Field rice experiments were carried out in a moderately Cd-contaminated paddy field in Zh...