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Nitrogen and Phosphorus Fertilizer Increases the Uptake of Soil Heavy Metal Pollutants by Plant Community

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Abstract

Soil heavy metal pollution is widespread around the world. Compared with hyperaccumulation plants, non-hyperaccumulator plant communities have many advantages in the remediation of heavy metals pollution in soil. The application of nitrogen (N) and phosphorus (P) is inexpensive and convenient, which can promote the growth of plant. N and P fertilizer might increase plant community remediation of heavy metal polluted soils. In our study, the effects of N and P fertilizer on remediation of soil Cd, Cu, Pb pollution by plant community were studied through a greenhouse experiment. Our results indicated that addition of N, P and N + P fertilizer increased plant community aboveground biomass. Simultaneously, addition of N and P fertilizer increased the accumulation of heavy metals in aboveground of the plant community and accelerated plants absorption soil heavy metals. Among them, N fertilizer had the best effect. Our results provide an inexpensive method for remediation heavy metal pollution of contaminated farmland, abandoned land and mine tailings, etc.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (grant number: 31800443), the Yunnan Provincial Innovation and Entrepreneurship Project for College Students (grant number: 202110681008, S202110681036X, S202110681027 and S202110681058X), the Funding for the Opening Project of Key Laboratory of Agricultural Renewable Resource Utilization Technology (grant number: HLJHDNY2111), the Thousand Young Talents Program of Yunnan Province, and Double Top University Plan Fund of Yunnan University (grant number: C176220100044), the 2021 Low-carbon Development Guidance Project of Yunnan Province, China (grant number: 135). We appreciated editors and anonymous reviewers for their constructive comments on this paper.

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Correspondence to Jingxin Huang.

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Tang, G., Zhang, X., Qi, L. et al. Nitrogen and Phosphorus Fertilizer Increases the Uptake of Soil Heavy Metal Pollutants by Plant Community. Bull Environ Contam Toxicol 109, 1059–1066 (2022). https://doi.org/10.1007/s00128-022-03628-x

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  • DOI: https://doi.org/10.1007/s00128-022-03628-x

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