Effects of combined soil amendments on the availability and migration of Cd in soil and rice
To achieve safe production of severe cadmium (Cd)-contaminated paddy fields, the effects of a combination of red mud, silicon fertilizer, and phosphorus fertilizer on the absorption, transportation, and accumulation of Cd in rice were studied by a field plot orthogonal experiment. The results showed...
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| Language: | English |
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Frontiers Media S.A.
2025-07-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2025.1548784/full |
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| author | Jie Yang Zhu Zou Hongquan Yang Junyi Wu Zile Yang Chaoxu Fang Xiangdong Wei |
| author_facet | Jie Yang Zhu Zou Hongquan Yang Junyi Wu Zile Yang Chaoxu Fang Xiangdong Wei |
| author_sort | Jie Yang |
| collection | DOAJ |
| description | To achieve safe production of severe cadmium (Cd)-contaminated paddy fields, the effects of a combination of red mud, silicon fertilizer, and phosphorus fertilizer on the absorption, transportation, and accumulation of Cd in rice were studied by a field plot orthogonal experiment. The results showed that soil pH, biomass of straw, and grain increased after applying the combined soil amendments. Compared with the control (CK), soil-available Cd decreased by 16.90%–47.09%. Cd content decreased by 42.30%–65.62% in roots, 16.05%–67.98% in stems, 26.09%–66.30% in leaves, and 48.39%–74.19% in grain. Variance and range analysis showed the effect of the three amendments on Cd reduction in grain was in descending order: red mud > silicon fertilizer > phosphate fertilizer. The optimal combination of soil amendments to control Cd pollution was 1,800 kg/ha red mud, 600 kg/ha silicon fertilizer, and 675 kg/ha phosphorus fertilizer. Results showed that safe production from severely Cd-contaminated paddy fields could be achieved by applying a combination of soil amendments and provided a method for remediating a severely Cd-contaminated paddy field. |
| format | Article |
| id | doaj-art-6308f67369a540d799a9f7bdb8cf4092 |
| institution | Kabale University |
| issn | 2296-665X |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj-art-6308f67369a540d799a9f7bdb8cf40922025-08-20T03:50:49ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2025-07-011310.3389/fenvs.2025.15487841548784Effects of combined soil amendments on the availability and migration of Cd in soil and riceJie Yang0Zhu Zou1Hongquan Yang2Junyi Wu3Zile Yang4Chaoxu Fang5Xiangdong Wei6College of Environment and Ecology, Hunan Agricultural University, Changsha, ChinaCollege of Environment and Ecology, Hunan Agricultural University, Changsha, ChinaBureau of Agriculture and Rural Affairs of Cili County, Zhangjiajie, ChinaCollege of Environment and Ecology, Hunan Agricultural University, Changsha, ChinaCollege of Environment and Ecology, Hunan Agricultural University, Changsha, ChinaCollege of Environment and Ecology, Hunan Agricultural University, Changsha, ChinaCollege of Environment and Ecology, Hunan Agricultural University, Changsha, ChinaTo achieve safe production of severe cadmium (Cd)-contaminated paddy fields, the effects of a combination of red mud, silicon fertilizer, and phosphorus fertilizer on the absorption, transportation, and accumulation of Cd in rice were studied by a field plot orthogonal experiment. The results showed that soil pH, biomass of straw, and grain increased after applying the combined soil amendments. Compared with the control (CK), soil-available Cd decreased by 16.90%–47.09%. Cd content decreased by 42.30%–65.62% in roots, 16.05%–67.98% in stems, 26.09%–66.30% in leaves, and 48.39%–74.19% in grain. Variance and range analysis showed the effect of the three amendments on Cd reduction in grain was in descending order: red mud > silicon fertilizer > phosphate fertilizer. The optimal combination of soil amendments to control Cd pollution was 1,800 kg/ha red mud, 600 kg/ha silicon fertilizer, and 675 kg/ha phosphorus fertilizer. Results showed that safe production from severely Cd-contaminated paddy fields could be achieved by applying a combination of soil amendments and provided a method for remediating a severely Cd-contaminated paddy field.https://www.frontiersin.org/articles/10.3389/fenvs.2025.1548784/fullsoilCd contaminationcombined soil amendmentsricepollution control |
| spellingShingle | Jie Yang Zhu Zou Hongquan Yang Junyi Wu Zile Yang Chaoxu Fang Xiangdong Wei Effects of combined soil amendments on the availability and migration of Cd in soil and rice Frontiers in Environmental Science soil Cd contamination combined soil amendments rice pollution control |
| title | Effects of combined soil amendments on the availability and migration of Cd in soil and rice |
| title_full | Effects of combined soil amendments on the availability and migration of Cd in soil and rice |
| title_fullStr | Effects of combined soil amendments on the availability and migration of Cd in soil and rice |
| title_full_unstemmed | Effects of combined soil amendments on the availability and migration of Cd in soil and rice |
| title_short | Effects of combined soil amendments on the availability and migration of Cd in soil and rice |
| title_sort | effects of combined soil amendments on the availability and migration of cd in soil and rice |
| topic | soil Cd contamination combined soil amendments rice pollution control |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2025.1548784/full |
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