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Effect of Manure and Compost on the Phytostabilization Potential of Heavy Metals by the Halophytic Plant Wavy-Leaved Saltbush

文献类型: 外文期刊

作者: Li, Jianjian 1 ; Chang, Yajun 1 ; AL-Huqail, Arwa Abdulkreem 2 ; Ding, Zheli 3 ; Al-Harbi, Mohammad S. 4 ; Ali, Esm 1 ;

作者机构: 1.Jiangsu Prov & Chinese Acad Sci, Nanjing Bot Garden, Mem Sun Yat Sen, Inst Bot, Nanjing 210014, Peoples R China

2.Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Biol, Riyadh 133248824, Saudi Arabia

3.Chinese Acad Trop Agr Sci CATAS, Haikou Expt Stn, Haikou 571101, Peoples R China

4.Taif Univ, Coll Sci, Dept Biol, POB 11099, At Taif 21944, Saudi Arabia

5.Assiut Univ, Fac Sci, Dept Bot & Microbiol, Assiut 71516, Egypt

6.Al Azhar Univ, Assiut Branch, Dept Soils & Water, Fac Agr, Assiut 71524, Egypt

7.Assiut Univ, Dept Soils & Water, Fac Agr, Assiut 71526, Egypt

8.Field Crops Res Inst, Agr Res Ctr, Giza 12112, Egypt

9.Al Baha Univ, Fac Sci, Biol Dept, Al Baha 6577977388, Saudi Arabia

关键词: contaminated soils; Atriplex; halophytic plants; organic amendments; phytoremediation

期刊名称:PLANTS-BASEL ( 影响因子:3.935; )

ISSN:

年卷期: 2021 年 10 卷 10 期

页码:

收录情况: SCI

摘要: This study aimed to use organic fertilizers, e.g., compost and manures, and a halophytic plant [wavy-leaved saltbush (Atriplex undulata)] to remediate an agricultural soil polluted with toxic elements. Compost or manure (1% w/w) was added to a polluted soil in a pot trial. The application of the organic fertilizer, whether compost or manure, led to a significant improvement in the growth of the tested plant. From the physiological point of view, the application of organic fertilizers to polluted soil significantly increased the content of chlorophyll, carotenoid, and proline and, furthermore, led to a clear decrease in malondialdehyde (MDA) in the plant leaves. The highest significant values of organic carbon in the polluted soil (SOC) and cation exchange capacity (CEC) were found for the soil amended by compost and planted with wavy-leaved saltbush. Manure significantly reduced the soil pH to 7.52. Compost significantly decreased Zn, Cu, Cd, and Pb availability by 19, 8, 12, and 13%, respectively, compared to the control. On the other hand, manure increased Zn, Cu, Cd, and Pb availability by 8, 15, 18, and 14%, respectively. Compost and manure reduced the bioconcentration factor (BCF) and translocation factor (TF) of Cd and Pb. Compost was more effective in increasing the phytostabilization of toxic metals by wavy-leaved saltbush plants compared to manure. The results of the current study confirm that the application of non-decomposed organic fertilizers to polluted soils increases the risk of pollution of the ecosystem with toxic elements. The cultivation of contaminated soils with halophytic plants with the addition of aged organic materials, e. g., compost, is an effective strategy to reduce the spreading of toxic metals in the ecosystem, thus mitigating their introduction into the food chain.

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