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| Effect of Hydrogen Peroxide Induced Fenton Reaction on Biomass of Rice in Soil Contaminated by Cd and As |
| Received:January 26, 2015 |
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| KeyWord:Fenton Reaction;arsenic;cadmium;continuous flood;interval flood |
| Author Name | Affiliation | E-mail | | LI Qiao-wen | Key Laboratory of South China Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
Key Laboratory of Agroecology and Rural Environment of Guangdong Higher Education Institutions, Guangzhou 510642, China | | | QIN Jun-hao | Key Laboratory of South China Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
Key Laboratory of Agroecology and Rural Environment of Guangdong Higher Education Institutions, Guangzhou 510642, China | | | CHEN Gui-kui | Key Laboratory of South China Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
Key Laboratory of Agroecology and Rural Environment of Guangdong Higher Education Institutions, Guangzhou 510642, China | | | LI Hua-shou | Key Laboratory of South China Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
Key Laboratory of Agroecology and Rural Environment of Guangdong Higher Education Institutions, Guangzhou 510642, China | lihuashou@scau.edu.cn |
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| Abstract: |
| A pot experiment using a rhizo-bag system filled with soil and sand was conducted to investigate if rice growth was influenced by Fenton Reaction induced by hydrogen peroxide at micro molar level from simulated rain water in arsenic and/or cadmium contaminated paddy soil under all-time flooding and partial flooding. Results show that the Fenton Reaction significantly improved the dry weight and fresh weight of rice at tillering stage in the treatment with 30 mg As·kg-1 soil, and at maturing stage in the treatment with both 30 mg As·kg-1 soil and 0.3 mg Cd·kg-1 soil. Fenton Reaction also improved the weight of rice grain in treatments with 0.3 mg Cd·kg-1 soil and 3 mg Cd·kg-1 soil. These findings prove that Fenton Reaction could reduce the negative impacts of arsenic and cadmium contamination on rice growth and increase rice biomass and yield. |
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