Work

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

Year: 2023

Type: article

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.

Source: Sustainability

DOI: 10.3390/su152316236

Authors: Qinghui Meng, Wenhua Fan, Fenwu Liu, Gailing Wang, Xiaoying Di

Institution: Shanxi Agricultural University

Language: English

Topic: Heavy metals in environment

Subfield: Pollution

Field: Environmental Science

Domain: Physical Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,447