文献类型： 外文期刊
作者： Li, Hui 1 ; Yang, Zhiliang 2 ; Dai, Mingwei 1 ; Diao, Xinyue 1 ; Dai, Shunli 2 ; Fang, Ting 3 ; Dong, Xinju 4 ;
作者机构： 1.Anhui Agr Univ, Sch Resources & Environm, Hefei 230026, Anhui, Peoples R China
2.Anhui Agr Univ, Coll Engn, Hefei 230026, Anhui, Peoples R China
3.Anhui Acad Agr Sci, Fisheries Res Inst, Hefei 230031, Anhui, Peoples R China
4.Univ Louisville, Dept Chem, Louisville, KY 40292 USA
关键词： Cadmium; Phosphate fertilizer; Input
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）
ISSN： 0048-9697
年卷期： 2020 年 698 卷
页码：
收录情况： SCI
摘要： Phosphate fertilizer applications are an important source of soil Cd in China. However, the input of Cd from phosphate fertilizer has always been neglected in China because of its low content. In this paper, we calculated the Cd input from phosphate fertilizer in China during 2006-2016. According to the data, the total phosphate fertilizer consumption and agriculture application rate tended to decrease after 2014. In 2016, the phosphate fertilizer application rate ranged from 12.14 to 99.38 kg/ha with a mean value of 42.70 kg/ha, and excessive fertilizer application occurred in Xinjiang, Henan, and Hubei Provinces. The Cd content in phosphate fertilizer was 0.75 mg/kg based on 1222 samples. The national Cd input from phosphate fertilizer was estimated to be 10.52 tons in 2016, with DAP/MAP being the largest contributor, accounting for 83.31% of the total input. These findings demonstrate the necessity of performing assessments to regulate the utilization of phosphate fertilizer in China, especially in Henan and Xinjiang Provinces. (C) 2019 Elsevier B.V. All rights reserved.
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