HUBEI AGRICULTURAL SCIENCES ›› 2021, Vol. 60 ›› Issue (14): 46-50.doi: 10.14088/j.cnki.issn0439-8114.2021.14.008

• Resource & Environment • Previous Articles     Next Articles

Study on the inhibition and control effect of compound amendment on cadmium pollution in rice and soil

LI Xiao-peng1, ZHOU Jia-cheng1, CHEN Nan1, MA Shi-zhu1, FENG Dong-yi1, LIN Jun-jie1, ZHANG Yu-shan2   

  1. 1. Sanxiang Inspection and Testing Station of Agricultural Products, Zhongshan 528463,Guangdong,China;
    2. College of Material and Food, University of Electronic Science and Technology of China Zhongshan Institute,Zhongshan 528400,Guangdong,China
  • Received:2020-10-27 Online:2021-07-25 Published:2021-08-09

Abstract: Three local rice varieties, Maba Younian, Jinnong Simiao and Meixiangzhan 2, were selected as the research objects in Zhongshan city. Experiments were carried out in the field to study the resistance and control effects of compound amendments on cadmium pollution in rice and soil. The results showed that the compound amendments could significantly reduce the cadmium content in rice plants, and the compound amendments could significantly passivate the soil available cadmium; The cadmium content of rice was different between varieties and parts of rice, and Maba Younian had stronger passivation effect on available cadmium in rhizosphere soil than Meixiangzhan 2, which led to the lower cadmium content in all parts of Maba Younian than Meixiangzhan 2. The distribution of Cd content in different parts of rice plant was as follows: Root > stem leaf > brown rice > rice husk. When the local use amount of compound amendment was 900 kg/hm2, the cadmium content in brown rice of rice could be reduced to the limit of the national standard 0.2 mg/kg.

Key words: rice, cadmium pollution, compound amendment, soil, passivation effect

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