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| Effects of iron-rich organic fertilizer on the growth and cadmium accumulation of Miscanthus sinensis Anderss under cadmium stress |
| Received:April 20, 2023 |
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| KeyWord:ferrous sulfate;iron-rich organic fertilizer;Miscanthus sinensis;cadmium stress |
| Author Name | Affiliation | E-mail | | CHEN Liang | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | | | XIANG Sha | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | | | DING Manlin | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | | | MA Jingjing | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | | | WANG Ying | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | | | JIANG Lihong | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | jlh_8241@163.com | | XIAO Yunhua | College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China | huazipiaoling.123@163.com |
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| Abstract: |
| This study aimed to investigate the effects of iron-rich organic fertilizer on the growth and cadmium accumulation of Miscanthus sinensis Anderss under cadmium stress. Pot experiments were conducted to set up CK（no fertilization）, ZCK（regular organic fertilizer）, and Z2 and Z3（application of different concentrations of iron-rich organic fertilizer）treatments. The results showed that, compared with CK, the application of the organic fertilizer treatment promoted the growth of Miscanthus sinensis, improved the soil physicochemical properties, and inhibited the absorption of heavy metals by Miscanthus sinensis. At the same time, Z2 and Z3 had a better effect on Miscanthus sinensis growth than ZCK. Compared to ZCK, the dry weight of Z3 significantly increased by 131.80%, and the root length of Z2 significantly increased by 54.22%. In addition, the cadmium content in the aboveground portion of Z2 significantly decreased by 49.86%, and the underground portion of Z3 significantly decreased by 58.94% compared to ZCK. In summary, applying iron-rich organic fertilizer is more effective in promoting the growth of Miscanthus sinensis and inhibiting its absorption of cadmium compared to regular organic fertilizer. This fertilizer has the potential to be used for both the remediation and production of lightly cadmium-contaminated soil. |
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