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Effects of Fe-Mn-Ce oxide-modified biochar on As accumulation, morphology, and quality of rice (Oryza sativa L.).
Environ Sci Pollut Res Int. 2020 May; 27(15):18196-18207.ES

Abstract

The fluidity of arsenic (As) in soil used for rice cultivation under flooding conditions is the main reason for its high accumulation in rice, which poses a serious threat to human's health. Biochar can immobilize heavy metal (for example lead) of soil because of the strong binding of heavy metals to the inner biochar particles. We conducted a pot experiment to evaluate the effects of biochar (BC) and Fe-Mn-Ce oxide-modified biochar composites (FMCBCs) on the morphology, As accumulation, and grain quality of rice grown in As-contaminated soils. The biochar and FMCBC treatments significantly increased the dry weight of roots, stems, leaves, and rice grains grown in As-contaminated soil (P < 0.05). The As concentration in different parts of rice was significantly lower with treatment FMCBC3-2 (BC, Fe, Mn, and Ce weight ratio of 24:2:3:10) than with the BC and control (no BC) treatments. The application of FMCBC3-2 maximized the yield and quality of rice grains: rice grain yields were 61.45-68.41% higher over control and the proportion of essential amino acids in the rice grains was 31.01-44.62%. The application of FMCBCs also increased the concentration of Fe-Mn plaques, which prevent the uptake of As by rice, thereby mitigating the toxic effects of As-contaminated soil on rice. In summary, Fe-Mn-Ce oxide-modified BC composites fixed As, reducing its fluidity and the As concentration in rice. Our results show that FMCBC3 could play an important role in reducing As accumulation and increasing the grain yield and quality of rice, thus ensuring food safety in regions contaminated with As.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Lian F
Institute of Environmental Processes and Pollution Control and School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China.
Liu X
Agro-Environmental Protection Institute, Ministry of Agriculture of China, Tianjin, 300191, China.
Gao M
Department of Civil and Environmental Engineering, Shantou University, Shantou, 515063, China.
Li H
Liaoning Geological Environment Monitoring Station, Shenyang, 110032, China.
Qiu W
The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch, 8140, New Zealand.
Song Z
Department of Civil and Environmental Engineering, Shantou University, Shantou, 515063, China. forestman1218@163.com.

MeSH

ArsenicCadmiumCharcoalOryzaOxidesSoilSoil Pollutants

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32172416

Citation

Lian, Fei, et al. "Effects of Fe-Mn-Ce Oxide-modified Biochar On as Accumulation, Morphology, and Quality of Rice (Oryza Sativa L.)." Environmental Science and Pollution Research International, vol. 27, no. 15, 2020, pp. 18196-18207.
Lian F, Liu X, Gao M, et al. Effects of Fe-Mn-Ce oxide-modified biochar on As accumulation, morphology, and quality of rice (Oryza sativa L.). Environ Sci Pollut Res Int. 2020;27(15):18196-18207.
Lian, F., Liu, X., Gao, M., Li, H., Qiu, W., & Song, Z. (2020). Effects of Fe-Mn-Ce oxide-modified biochar on As accumulation, morphology, and quality of rice (Oryza sativa L.). Environmental Science and Pollution Research International, 27(15), 18196-18207. https://doi.org/10.1007/s11356-020-08355-6
Lian F, et al. Effects of Fe-Mn-Ce Oxide-modified Biochar On as Accumulation, Morphology, and Quality of Rice (Oryza Sativa L.). Environ Sci Pollut Res Int. 2020;27(15):18196-18207. PubMed PMID: 32172416.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of Fe-Mn-Ce oxide-modified biochar on As accumulation, morphology, and quality of rice (Oryza sativa L.). AU - Lian,Fei, AU - Liu,Xuewei, AU - Gao,Minling, AU - Li,Huizhong, AU - Qiu,Weiwen, AU - Song,Zhengguo, Y1 - 2020/03/14/ PY - 2019/08/01/received PY - 2020/03/06/accepted PY - 2020/3/17/pubmed PY - 2020/7/11/medline PY - 2020/3/16/entrez KW - As KW - As species KW - As-contaminated soil KW - Fe-Mn-Ce oxide–modified biochar composite KW - Rice SP - 18196 EP - 18207 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 27 IS - 15 N2 - The fluidity of arsenic (As) in soil used for rice cultivation under flooding conditions is the main reason for its high accumulation in rice, which poses a serious threat to human's health. Biochar can immobilize heavy metal (for example lead) of soil because of the strong binding of heavy metals to the inner biochar particles. We conducted a pot experiment to evaluate the effects of biochar (BC) and Fe-Mn-Ce oxide-modified biochar composites (FMCBCs) on the morphology, As accumulation, and grain quality of rice grown in As-contaminated soils. The biochar and FMCBC treatments significantly increased the dry weight of roots, stems, leaves, and rice grains grown in As-contaminated soil (P < 0.05). The As concentration in different parts of rice was significantly lower with treatment FMCBC3-2 (BC, Fe, Mn, and Ce weight ratio of 24:2:3:10) than with the BC and control (no BC) treatments. The application of FMCBC3-2 maximized the yield and quality of rice grains: rice grain yields were 61.45-68.41% higher over control and the proportion of essential amino acids in the rice grains was 31.01-44.62%. The application of FMCBCs also increased the concentration of Fe-Mn plaques, which prevent the uptake of As by rice, thereby mitigating the toxic effects of As-contaminated soil on rice. In summary, Fe-Mn-Ce oxide-modified BC composites fixed As, reducing its fluidity and the As concentration in rice. Our results show that FMCBC3 could play an important role in reducing As accumulation and increasing the grain yield and quality of rice, thus ensuring food safety in regions contaminated with As. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/32172416/Effects_of_Fe_Mn_Ce_oxide_modified_biochar_on_As_accumulation_morphology_and_quality_of_rice__Oryza_sativa_L___ DB - PRIME DP - Unbound Medicine ER -