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Effect of Phosphorus Application on Eggplant Cadmium Accumulation and Soil Cadmium Morphology

Author

Listed:
  • Qinghui Meng

    (College of Resources and Environment, Shanxi Agricultural University, Jinzhong 030801, China)

  • Wenhua Fan

    (College of Resources and Environment, Shanxi Agricultural University, Jinzhong 030801, China)

  • Fenwu Liu

    (College of Resources and Environment, Shanxi Agricultural University, Jinzhong 030801, China)

  • Gailing Wang

    (College of Resources and Environment, Shanxi Agricultural University, Jinzhong 030801, China)

  • Xiaoying Di

    (College of Resources and Environment, Shanxi Agricultural University, Jinzhong 030801, China)

Abstract

Soil cadmium (Cd) contamination affects human health, and the application of phosphorus (P) fertilizer can inhibit the toxic effects of Cd; however, the effects of different P fertilizers on Cd accumulation in calcareous soils are unknown. To address this point, this paper used a pot experiment with four P fertilizer types (monoammonium phosphate (MAP), superphosphate (SSP), diammonium phosphate (DAP), and dicalcium phosphate (DCP)) and four P fertilizer levels (0, 0.15, 0.25, and 0.35 g kg −1 , P per kg of soil). The effects of P application on the biomass of eggplant, Cd content, bioconcentration factors, translocation factor, yield quality, and soil Cd morphology changes in a Cd-contaminated environment were explored. Applying 0.35 g kg −1 of DCP significantly increased eggplant biomass while reducing Cd accumulation, concentration, and transport within eggplants under Cd contamination. The P fertilizer changed the distribution of soil Cd morphology. A redundancy analysis identified Cd content in the residual and Fe/Mn oxides-bound states as the primary factors influencing Cd levels in plants. In summary, the application of 0.35 g kg −1 DCP proved most efficient in mitigating Cd accumulation in eggplants under Cd-induced stress conditions.

Suggested Citation

  • Qinghui Meng & Wenhua Fan & Fenwu Liu & Gailing Wang & Xiaoying Di, 2023. "Effect of Phosphorus Application on Eggplant Cadmium Accumulation and Soil Cadmium Morphology," Sustainability, MDPI, vol. 15(23), pages 1-16, November.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:23:p:16236-:d:1286260
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    References listed on IDEAS

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    1. Muhammad Suleman & Muhammad Ashraf & Qurat-Ul-Ain Raza & Muhammad Amjad Bashir & Shafeeq Ur Rahman & Muhammad Aon & Saba Ali & Sher Muhammad Shahzad & Muhammad Usman Khalid & Hafiz Muhammad Ali Raza &, 2022. "Determining the Cadmium Accumulation in Maize ( Zea mays L.) and Soil Influenced by Phosphoric Fertilizers in Two Different Textured Soils," Land, MDPI, vol. 11(8), pages 1-15, August.
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