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Combined amendment reduces soil Cd availability and rice Cd accumulation in three consecutive rice planting seasons.
J Environ Sci (China). 2022 Jan; 111:141-152.JE

Abstract

The scientific application of stabilized materials has been considered an effective method for the in situ remediation of Cd-contaminated soil. This study aimed to investigate the persistence of the effect of a combined amendment of limestone and sepiolite (LS) on soil Cd availability and accumulation in rice grown in a mildly Cd-contaminated paddy field (0.45 mg/kg of Cd) over three consecutive rice seasons. 1125-4500 kg/ha of LS was applied to the soil before the first rice planting season and 562.5-2250 kg/ha of LS was supplemented before the third rice planting season. The application of LS (1125-4500 kg/ha) increased the soil pH by 0.44-1.09, 0.18-0.53, and 0.42-0.68 in the first, second, and third season, respectively, and decreased the soil acid-extractable Cd content by 18.2-36.4%, 17.7-33.5%, and 9.6-17.6%. LS application significantly decreased the Cd contents in the rice tissues. The application of 4500 kg/ha of LS decreased the Cd content in brown rice to below the National Food Limit Standard of 0.2 mg/kg (GB 2762-2017) in the three consecutive rice seasons. However, the effect of LS on the soil-rice system was significantly weakened in the third season. The supplementary application of 562.5-2250 kg/ha of LS further decreased the Cd content in brown rice by 26.1-56.5% and decreased the health risk index by 23.7-43.8%. Therefore, it was recommended to apply 4500 kg/ha of LS in the first season and to supplement 2250 kg/ha of LS in the third season to effectively guarantee the clean production of rice in three consecutive rice seasons.

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Authors+Show Affiliations

Yang W
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
Wang S
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
Zhou H
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China. Electronic address: zhouhang4607@163.com.
Zeng M
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China.
Zhang J
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
Huang F
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
Shan S
Hunan Institute of Microbiology, Changsha 410009, China.
Guo Z
Hunan Institute of Microbiology, Changsha 410009, China.
Yi H
Hunan Shuanghong Agricultural Ecological Engineering Co., Ltd., Changsha 410205, China.
Sun Z
Hunan Shuanghong Agricultural Ecological Engineering Co., Ltd., Changsha 410205, China.
Gu J
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China.
Liao B
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha 410004, China.

MeSH

CadmiumOryzaSeasonsSoilSoil Pollutants

Pub Type(s)

Journal Article

Language

eng

PubMed ID

34949344

Citation

Yang, Wenjun, et al. "Combined Amendment Reduces Soil Cd Availability and Rice Cd Accumulation in Three Consecutive Rice Planting Seasons." Journal of Environmental Sciences (China), vol. 111, 2022, pp. 141-152.
Yang W, Wang S, Zhou H, et al. Combined amendment reduces soil Cd availability and rice Cd accumulation in three consecutive rice planting seasons. J Environ Sci (China). 2022;111:141-152.
Yang, W., Wang, S., Zhou, H., Zeng, M., Zhang, J., Huang, F., Shan, S., Guo, Z., Yi, H., Sun, Z., Gu, J., & Liao, B. (2022). Combined amendment reduces soil Cd availability and rice Cd accumulation in three consecutive rice planting seasons. Journal of Environmental Sciences (China), 111, 141-152. https://doi.org/10.1016/j.jes.2021.03.027
Yang W, et al. Combined Amendment Reduces Soil Cd Availability and Rice Cd Accumulation in Three Consecutive Rice Planting Seasons. J Environ Sci (China). 2022;111:141-152. PubMed PMID: 34949344.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Combined amendment reduces soil Cd availability and rice Cd accumulation in three consecutive rice planting seasons. AU - Yang,Wenjun, AU - Wang,Shilong, AU - Zhou,Hang, AU - Zeng,Min, AU - Zhang,Jingyi, AU - Huang,Fang, AU - Shan,Shiping, AU - Guo,Zhaohui, AU - Yi,Hongwei, AU - Sun,Zhiguang, AU - Gu,Jiaofeng, AU - Liao,Bohan, Y1 - 2021/03/26/ PY - 2020/09/21/received PY - 2021/03/10/revised PY - 2021/03/11/accepted PY - 2021/12/24/entrez PY - 2021/12/25/pubmed PY - 2021/12/28/medline KW - Cadmium KW - Health risk KW - Remediation persistence KW - Rice (Oryza sativa L.) KW - Stabilization SP - 141 EP - 152 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 111 N2 - The scientific application of stabilized materials has been considered an effective method for the in situ remediation of Cd-contaminated soil. This study aimed to investigate the persistence of the effect of a combined amendment of limestone and sepiolite (LS) on soil Cd availability and accumulation in rice grown in a mildly Cd-contaminated paddy field (0.45 mg/kg of Cd) over three consecutive rice seasons. 1125-4500 kg/ha of LS was applied to the soil before the first rice planting season and 562.5-2250 kg/ha of LS was supplemented before the third rice planting season. The application of LS (1125-4500 kg/ha) increased the soil pH by 0.44-1.09, 0.18-0.53, and 0.42-0.68 in the first, second, and third season, respectively, and decreased the soil acid-extractable Cd content by 18.2-36.4%, 17.7-33.5%, and 9.6-17.6%. LS application significantly decreased the Cd contents in the rice tissues. The application of 4500 kg/ha of LS decreased the Cd content in brown rice to below the National Food Limit Standard of 0.2 mg/kg (GB 2762-2017) in the three consecutive rice seasons. However, the effect of LS on the soil-rice system was significantly weakened in the third season. The supplementary application of 562.5-2250 kg/ha of LS further decreased the Cd content in brown rice by 26.1-56.5% and decreased the health risk index by 23.7-43.8%. Therefore, it was recommended to apply 4500 kg/ha of LS in the first season and to supplement 2250 kg/ha of LS in the third season to effectively guarantee the clean production of rice in three consecutive rice seasons. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/34949344/Combined_amendment_reduces_soil_Cd_availability_and_rice_Cd_accumulation_in_three_consecutive_rice_planting_seasons_ DB - PRIME DP - Unbound Medicine ER -