河南农业科学 ›› 2022, Vol. 51 ›› Issue (10): 74-85.DOI: 10.15933/j.cnki.1004-3268.2022.10.009

所属专题: 污染耕地作物品种筛选

• 农业资源与环境 • 上一篇    下一篇

镉砷污染耕地玉米重金属安全品种筛选

柴冠群1,周礼兴2,王丽1,刘桂华1,秦松1,曹艳2,范成五1   

  1. (1.贵州省农业科学院土壤肥料研究所,贵州 贵阳 550006;2. 毕节市七星关区农业农村局,贵州 毕节 551700)
  • 收稿日期:2022-09-01 出版日期:2022-10-15 发布日期:2022-12-12
  • 通讯作者: 范成五(1977-),男,贵州安顺人,研究员,主要从事农业资源利用与环境研究。E-mail:18985581415@189.cn
  • 作者简介:柴冠群(1990-),男,山西临汾人,助理研究员,硕士,主要从事农产品产地重金属污染防控研究。E-mail:chaiguanqun@163.com
  • 基金资助:
    国家重点研发计划项目(2018YFD0800602)

Screening of Safe Maize Varieties of Heavy Metals in Cadmium Arsenic Contaminated Farmland

CHAI Guanqun1,ZHOU Lixing2,WANG Li1,LIU Guihua1,QIN Song1,CAO Yan2,FAN Chengwu1   

  1. (1.Institute of Soil and Fertilizer,Guizhou Academy of Agricultural Science,Guiyang 550006,China;2.Bijie City Qixingguan Bureau of Agriculture and Rural Affairs,Bijie 551700,China)
  • Received:2022-09-01 Published:2022-10-15 Online:2022-12-12

摘要: 为探讨不同玉米品种籽粒镉(Cd)、砷(As)积累能力的差异及品种与环境的作用效应,并筛选出籽粒Cd、As低富集的玉米品种,以毕节市七星关区50个当地种植的玉米品种为材料,在七星关区T地与Y地的Cd、As污染耕地采用田间小区试验对玉米籽粒Cd、As积累差异进行研究。结果表明,品种、环境及品种与环境互作对玉米籽粒Cd、As含量均有极显著影响。玉米籽粒重金属含量存在较大差异,总体表现为Cd>As。T、Y两地50个玉米品种籽粒As含量均显著低于粮食As限值(0.7 mg/kg,NY 861—2004)与饲料As限值(2.0 mg/kg,GB 13078—2017);T、Y两地50个玉米品种籽粒Cd含量均显著低于饲料Cd限值(1.0 mg/kg,GB 13078—2017);T、Y两地种植的新中玉801、金都玉2号、金都玉808、康农玉109、铜玉3号与渝单7号6个品种较稳定,其Cd含量均高于粮食Cd限值(0.05 mg/kg,NY 861—2004),此外,在T地,金湘369 Cd含量也高于粮食Cd限值(0.05 mg/kg,NY 861—2004)。综上,在研究区Cd、As污染耕地上,50份玉米种质均可作为饲料原料种植;新中玉801、金都玉2号、金都玉808、康农玉109、铜玉3号、渝单7号与金湘369不可作为粮食种植,其余玉米品种可作为粮食种植。

关键词: 镉, 砷, 玉米, 安全生产, 低积累

Abstract: In order to explore the differences in the accumulation ability of Cd and As in the grains of different maize varieties and the effects of variety and environment,and to screen out maize varieties with low accumulation of Cd and As in grains,50 local maize varieties in Qixingguan District,Bijie City were used as materials. The differences in the accumulation of Cd and As in maize grains were studied by field experiment in the Cd and As combined polluted farmland of location T and location Y in Qixingguan District.The results showed that variety,environment and their interaction had significant effects on Cd and As contents in maize grains.The contents of Cd and As in maize grains were significantly different,which were generally Cd>As.The grain As content of 50 maize varieties in location T and location Y was significantly lower than the limit of As in food(0.7 mg/kg,NY 861—2004)and the limit of As in feed(2.0 mg/kg,GB 13078—2017).The grain Cd content of 50 maize varieties in location T and location Y was significantly lower than the limit of Cd in feed(1.0 mg/kg,GB 13078—2017).The six varieties (Xinzhongyu 801,Jinduyu No.2,Jinduyu 808,Kangnongyu 109,Tongyu No.3,Yudan No.7)planted in location T and location Y had strong stability,and their Cd contents were higher than the limit of Cd in food(0.05 mg/kg,NY 861—2004).In addition,the Cd content in Jinxiang 369 was also higher than the limit of Cd in food(0.05 mg/kg,NY 861—2004). In summary,50 maize varieties could be planted as feed materials in Cd and As combined polluted farmland in the study area,Xinzhongyu 801,Jinduyu No.2,Jinduyu 808,Kangnongyu 109,Tongyu No.3,Yudan No.7,Jinxiang 369 could not be planted as food,while other maize varieties could be planted as food.

Key words: Cd, As, Maize, Safety production, Low accumulation

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