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Alternative TitleEffects of Organic Fertilizer on Accumulation of Mercury/Methylmercury in Rice
卞永荣1,2,3; 朱波1; 程虎2,3; 谷成刚3; 宋洋3; 杨兴伦3; 王芳3; 叶茂3; 蒋新3
Source Publication土壤
Contribution Rank1
Abstract稻米对甲基汞的累积危害居民身体健康。本文通过施用厌氧腐熟有机肥的盆栽试验,探讨有机肥施用对水稻中汞-甲基汞累积的影响。结果表明,有机肥施用水稻土中甲基汞含量显著增加,对照(10.43 g/kg)根(59.71 g/kg)>茎叶(38.97 g/kg)。不同有机肥的施用均增加籽粒中甲基汞的含量,与对照相比,各处理增加量表现为1%豆饼粉肥(16.1%)< 1%鱼粉肥(19.3%)<2%豆饼粉肥(41.5%)<2% 鱼粉肥(57.9%)。同时稻米中甲基汞含量与水稻土中甲基汞含量呈正相关关系。有机肥施用增加汞污染土壤水稻中汞与甲基汞累积,其可为合理施肥提供科学依据和理论指导。
Other AbstractAccumulation of methylmercury in rice is harmful to the health of consumers. A pot experiment was conducted to study the effects of organic fertilizer application on the accumulation of mercury and methylmercury in rice in mercury-methylmercury contaminated soil. The treatments included CK, no organic fertilizer + long term flooding;AWD, no organic fertilizer + dry/wet alternation;BOM1, rotten soybean meal (1%, w/w) + long term flooding;BOM2, rotten soybean meal (2%, w/w) + long term flooding;FOM1, rotten fish meal (1%, w/w) + long term flooding;FOM2, rotten fish meal (2%, w/w) + long term flooding. The results showed that organic fertilizer significantly increased CH3Hg+ content in paddy soil: CK (10.43 g/kg) < BOM1 (16.80 g/kg) < FOM1 (24.10 g/kg) < BOM2 (33.53 g/kg) < FOM2 (38.46 g/kg). After the application of organic fertilizers, total Hg accumulation in various rice organs were significantly different, the highest in root (2 812.83 g/kg), followed by brown rice (336.78 g/kg) and stem and leaf (300.44 g/kg), the abilities to accumulate CH3Hg+ by different rice organs were different: grain (180.06 g/kg) > root (59.71 g/kg) > stem and leaf (38.97 g/kg). Organic fertilizers increased the content of CH3Hg+ in rice grains compared with the CK treatment: BOM1 (16.1%) < FOM1 (19.3%) < BOM2 (41.5%) < FOM2(57.9%). Significant positive correlation was found between CH3Hg+ concentration in rice grains and CH3Hg+ content in paddy soil. This study proved organic manure can increase the accumulation of mercury and methylmercury in rice in mercury contaminated soil, and it provided scientific basis and theoretical guidance for rational fertilization.
Keyword 甲基汞 水稻 有机肥 水稻土
Indexed ByCSCD
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Document Type期刊论文
Corresponding Author朱波
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
卞永荣,朱波,程虎,等. 有机肥对水稻中汞/甲基汞累积的影响[J]. 土壤,2019,51(1):107-112.
APA 卞永荣.,朱波.,程虎.,谷成刚.,宋洋.,...&蒋新.(2019).有机肥对水稻中汞/甲基汞累积的影响.土壤,51(1),107-112.
MLA 卞永荣,et al."有机肥对水稻中汞/甲基汞累积的影响".土壤 51.1(2019):107-112.
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