Effect of Selenium and Passivator Application on Available Cadmium Passivation in Soil and Cadmium Reduction in Rice

doi:10.11924/j.issn.1000-6850.casb2020-0845

Abstract

Abstract:

To study the effect of different selenium fertilizer application methods combined with passivation material on soil cadmium passivation and rice cadmium reduction, a pot experiment was set up. In the study, sodium selenite was taken as selenium fertilizer, calcium magnesium phosphate fertilizer and diatomite were taken as passivation materials. The effects of basal application of selenium fertilizer + calcium magnesium phosphate fertilizer + diatomite and foliar application of selenium fertilizer + calcium magnesium phosphate fertilizer + diatomite on remediation and safe utilization of cadmium-contaminated acidic paddy field were studied. The results showed that the rice yield increased with the increase of selenium fertilizer and passivation material application. The yield of basal application of selenium fertilizer was slightly higher than that of foliar application, and the yield gap was 2.115 g/pot. Compared with the control (CK), basal application of 0.28% calcium magnesium phosphate fertilizer + 0.12% diatomite + 0.004‰ selenium (T3) could increase rice yield by 1.68 times. With the increase of selenium fertilizer and passivation material application, pH increased, available Cd decreased, while the organic matter and CEC changed a little. There was no significant difference in soil pH, organic matter and CEC between basal application and foliar application, but the available Cd content of basal application of selenium fertilizer was slightly lower than that of foliar application. T3 treatment had the best passivation effect on soil Cd than other treatments. The Cd content in rice decreased with the increase of basal application rate of Se fertilizer. The Cd content in rice decreased first and then increased with the increase of foliar application rate of Se fertilizer. The reduction of Cd in rice with basal application of Se fertilizer was stronger than that with foliar application, and the gap was 0.021 mg/kg. Compared with the control (CK), the Cd content in rice of T3 treatment was decreased by 0.063 mg/kg. It could be seen that selenium plays an important role in regulating Cd accumulation in rice, and the effect of basal application of selenium fertilizer is stronger than that of foliar application. Therefore, the effect of basal application of 0.28% calcium magnesium phosphate fertilizer + 0.12% diatomite + 0.004‰ selenium on soil Cd passivation and rice Cd reduction is the best, and the formula is worthy of popularization and application in Cd-contaminated paddy field.

Key words: rice, selenium application method, calcium magnesium phosphate fertilizer, diatomite, cadmium, passivation material, reduction, pot experiment

CLC Number:

Chai Guanqun, Liu Guihua, Luo Muxinjian, Qin Song, Fan Chengwu. Effect of Selenium and Passivator Application on Available Cadmium Passivation in Soil and Cadmium Reduction in Rice[J]. Chinese Agricultural Science Bulletin, 2021, 37(32): 102-107.

Figures/Tables 5

References 26

[1]	环境保护部, 国土资源部. 全国土壤污染状况调查公报[R/OL]. [2018-06-02]. http://www.zhb.gov.cn/gkml/hbb/qt/ 201404/t20140417_270670.htm.
[2]	王敬中. 我国每年因重金属污染粮食达1200万吨[J]. 农村实用技术, 2006(11):27.
[3]	Chaney R L, Reeves P G, Ryan J A, et al. An improved understanding of soil Cd risk to humans and low cost methods to phytoextract Cd from contaminated soils to prevent soil Cd risks[J]. Biometals, 2004, 17(5):549-553. pmid: 15688862
[4]	L. Recatalá, J. Sánchez, Arbelo C, et al. Testing the validity of a Cd soil quality standard in representative Mediterranean agricultural soils under an accumulator crop[J]. Science of the Total Environment, 2010, 409(1):9-18. doi: 10.1016/j.scitotenv.2010.09.021 URL
[5]	Beccaloni E, Vanni F, Beccaloni M, et al. Concentrations of arsenic, cadmium, lead and zinc in homegrown vegetables and fruits: Estimated intake by population in an industrialized area of Sardinia, Italy[J]. Microchemical Journal, 2013, 107:190-195. doi: 10.1016/j.microc.2012.06.012 URL
[6]	谭骏, 潘丽萍, 黄雁飞, 等. 叶面阻隔联合土壤钝化对水稻镉吸收转运的影响[J]. 农业资源与环境学报, 2020, 37(6):981-987.
[7]	黄青青, 刘艺芸, 徐应明, 等. 叶面硒肥与海泡石钝化对水稻镉硒累积的影响[J]. 环境科学与技术, 2018, 41(4):116-121.
[8]	杨昆, 杜彩艳, 段宗颜, 王润. 不同改良剂处理对玉米生长和吸收Cd影响研究[J]. 中国农学通报, 2017, 33(22):7-12.
[9]	张金秀, 何永美, 李博, 等. 三种黏土矿物对蚕豆生长和重金属含量的影响[J]. 农业环境科学学报, 2019, 38(4):845-854.
[10]	刘杨, 齐明星, 王敏, 等. 不同外源硒对镉污染土壤中小白菜生长及镉吸收的影响[J]. 环境科学, 2021, 42(4):2024-2030.
[11]	Yao X, Chu J, Wang G. Effects of Selenium on Wheat Seedlings Under Drought Stress[J]. Biological Trace Element Research, 2009, 130(3):283-290. doi: 10.1007/s12011-009-8328-7 URL
[12]	贾玮, 吴隽, 屈婵娟, 等. 硒增强植物抗逆能力及其机理研究进展[J]. 中国农学通报, 2015, 31(14):171-176.
[13]	陈平, 余土元, 陈惠阳, 等. 硒对镉胁迫下水稻幼苗生长及生理特性的影响[J]. 广西植物, 2002, 22(3):277-277.
[14]	鲍士旦. 土壤农业化学分析[M]. 北京: 中国农业科技出版社, 2000.
[15]	柴冠群, 杨娇娇, 刘桂华, 等. 高镉地质背景区设施菜地土壤镉生物有效性主控因子分析[J]. 生态与农村环境学报, 2021, 37(7):917-923.
[16]	杨建军, 王海廷, 丁永峰, 等. 硒肥不同施用方法对水稻硒含量及产量的影响[J]. 现代农业科技, 2020(18):6-7.
[17]	陈雪, 沈方科, 梁欢婷, 等. 外源施硒措施对水稻产量品质及植株硒分布的影响[J]. 南方农业学报, 2017, 48(1):46-50.
[18]	Reynolds R J B, Pilon-Smits E A H. Plant selenium hyper accumulation: ecological effects and potential implications for selenium cycling and community structure[J]. Biochim Biophys Acta Gen Subj, 2018, 1862(11):2372-2382. doi: 10.1016/j.bbagen.2018.04.018 URL
[19]	Ali F, Peng Q, Wang D, et al. Effects of selenite and selenate application on distribution and transformation of selenium fractions in soil and its bioavailability for wheat (Triticum aestivum L.)[J]. Environmental Science & Pollution Research International, 2017, 24(9):1-11.
[20]	王锐, 侯宛苓, 李雨潼, 等. 高硒高镉区土地安全区划方法[J]. 环境科学, 2019, 40(12):5524-5530.
[21]	文炯, 李祖胜, 许望龙, 等. 生石灰和钙镁磷肥对晚稻生长及稻米镉含量的影响[J]. 农业环境科学学报, 2019, 38(11):2496-2502.
[22]	王玉萍, 常宏, 李成, 等. Ca~(2+)对镉胁迫下玉米幼苗生长、光合特征和PSⅡ功能的影响[J]. 草业学报, 2016, 25(5):40-48.
[23]	刘莉, 谢德体, 李忠意, 等. 酸性紫色土的阳离子交换特征及其对酸缓冲容量的影响[J]. 土壤学报, 2020, 57(4):887-897.
[24]	Wan Y, Yu Y, Wang Q, et al. Cadmium uptake dynamics and translocation in rice seedling: Influence of different forms of selenium[J]. Ecotoxicology & Environmental Safety, 2016, 133:127-134.
[25]	林莉. 硒缓解水稻镉毒害的机理研究[D]. 杭州:浙江大学, 2011.
[26]	陈火云, 谢义梅, 周灵, 等. 施硒方式对油菜生长和籽粒硒、镉、铅含量的影响[J]. 河南农业科学, 2019, 48(3):49-54.

处理	钙镁磷肥用量/%	硅藻土用量/%	硒用量/‰	施用方式
CK	0.00	0.00	0.000	钙镁磷肥、硅藻土与硒肥均基施, 硒肥一次性全部施完
T1	0.07	0.03	0.001
T2	0.14	0.06	0.002
T3	0.28	0.12	0.004
T4	0.56	0.24	0.008
T5	1.12	0.48	0.016
T6	0.07	0.03	0.001	钙镁磷肥与硅藻土基施,硒肥叶面喷施, 硒肥分别在分蘖期、抽穗期及成熟期施用
T7	0.14	0.06	0.002
T8	0.28	0.12	0.004
T9	0.56	0.24	0.008
T10	1.12	0.48	0.016

处理	钙镁磷肥用量/%	硅藻土用量/%	硒用量/‰	施用方式
CK	0.00	0.00	0.000	钙镁磷肥、硅藻土与硒肥均基施, 硒肥一次性全部施完
T1	0.07	0.03	0.001
T2	0.14	0.06	0.002
T3	0.28	0.12	0.004
T4	0.56	0.24	0.008
T5	1.12	0.48	0.016
T6	0.07	0.03	0.001	钙镁磷肥与硅藻土基施,硒肥叶面喷施, 硒肥分别在分蘖期、抽穗期及成熟期施用
T7	0.14	0.06	0.002
T8	0.28	0.12	0.004
T9	0.56	0.24	0.008
T10	1.12	0.48	0.016