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Amendment damages the function of continuous flooding in decreasing Cd and Pb uptake by rice in acid paddy soil.
Ecotoxicol Environ Saf. 2018 Jan; 147:708-714.EE

Abstract

Combinations of remediation technologies are needed to solve the problem of soil contamination in paddy rice, due to multiple potential toxic elements (PTEs). Two potential mitigation methods, water management and in-situ remediation by soil amendment, have been widely used in treatment of PTE-polluted paddy soil. However, the interactive relationship between soil amendment and water management, and its influence on the accumulation of PTEs in rice are poorly understood. Greenhouse pot experiments were conducted to examine the effects of phosphate amendment on Cd and Pb availability in soil and their influence on Cd and Pb uptake into rice, on Fe and P availability in soil, and on the alteration of Fe amount and compartment on root surface among different water management strategies. Results indicated that Cd and Pb content in the shoot and grain were significantly affected by the different water management strategies in nonamended soils, and followed the order: wetting irrigation > conventional irrigation > continuous flooding. The application of phosphate amendment significantly decreased the variations of Cd and Pb absorption in shoot and grain of rice among different water treatments. The reasons may be attributed to the enhancement of P availability and the decrease of Fe availability in soil, and the decreased variations of Fe2+/Fe3+ content in root coating after the application of phosphate amendment. These results suggested that the simultaneous use of phosphate amendment and continuous flooding to immobilize Cd and Pb, especially in acid paddy soils, should be avoided.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Ye X
Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China.
Li H
Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences, Hefei 230031, China.
Zhang L
Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences, Hefei 230031, China.
Chai R
Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China.
Tu R
Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China.
Gao H
Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China. Electronic address: hjgao@ahau.edu.cn.

MeSH

AcidsAgricultural IrrigationCadmiumChinaEdible GrainEnvironmental PollutionEnvironmental Restoration and RemediationHydrogen-Ion ConcentrationLeadModels, TheoreticalOryzaPlant RootsSoilSoil Pollutants

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28938141

Citation

Ye, Xinxin, et al. "Amendment Damages the Function of Continuous Flooding in Decreasing Cd and Pb Uptake By Rice in Acid Paddy Soil." Ecotoxicology and Environmental Safety, vol. 147, 2018, pp. 708-714.
Ye X, Li H, Zhang L, et al. Amendment damages the function of continuous flooding in decreasing Cd and Pb uptake by rice in acid paddy soil. Ecotoxicol Environ Saf. 2018;147:708-714.
Ye, X., Li, H., Zhang, L., Chai, R., Tu, R., & Gao, H. (2018). Amendment damages the function of continuous flooding in decreasing Cd and Pb uptake by rice in acid paddy soil. Ecotoxicology and Environmental Safety, 147, 708-714. https://doi.org/10.1016/j.ecoenv.2017.09.034
Ye X, et al. Amendment Damages the Function of Continuous Flooding in Decreasing Cd and Pb Uptake By Rice in Acid Paddy Soil. Ecotoxicol Environ Saf. 2018;147:708-714. PubMed PMID: 28938141.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Amendment damages the function of continuous flooding in decreasing Cd and Pb uptake by rice in acid paddy soil. AU - Ye,Xinxin, AU - Li,Hongying, AU - Zhang,Ligan, AU - Chai,Rushan, AU - Tu,Renfeng, AU - Gao,Hongjian, Y1 - 2017/10/10/ PY - 2017/07/08/received PY - 2017/09/11/revised PY - 2017/09/12/accepted PY - 2017/9/25/pubmed PY - 2018/3/10/medline PY - 2017/9/23/entrez KW - Cd and Pb KW - Combined remediation KW - Phosphate amendment KW - Rice KW - Water management SP - 708 EP - 714 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 147 N2 - Combinations of remediation technologies are needed to solve the problem of soil contamination in paddy rice, due to multiple potential toxic elements (PTEs). Two potential mitigation methods, water management and in-situ remediation by soil amendment, have been widely used in treatment of PTE-polluted paddy soil. However, the interactive relationship between soil amendment and water management, and its influence on the accumulation of PTEs in rice are poorly understood. Greenhouse pot experiments were conducted to examine the effects of phosphate amendment on Cd and Pb availability in soil and their influence on Cd and Pb uptake into rice, on Fe and P availability in soil, and on the alteration of Fe amount and compartment on root surface among different water management strategies. Results indicated that Cd and Pb content in the shoot and grain were significantly affected by the different water management strategies in nonamended soils, and followed the order: wetting irrigation > conventional irrigation > continuous flooding. The application of phosphate amendment significantly decreased the variations of Cd and Pb absorption in shoot and grain of rice among different water treatments. The reasons may be attributed to the enhancement of P availability and the decrease of Fe availability in soil, and the decreased variations of Fe2+/Fe3+ content in root coating after the application of phosphate amendment. These results suggested that the simultaneous use of phosphate amendment and continuous flooding to immobilize Cd and Pb, especially in acid paddy soils, should be avoided. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/28938141/Amendment_damages_the_function_of_continuous_flooding_in_decreasing_Cd_and_Pb_uptake_by_rice_in_acid_paddy_soil_ DB - PRIME DP - Unbound Medicine ER -