Inicio  /  Agronomy  /  Vol: 14 Par: 2 (2024)  /  Artículo
ARTÍCULO
TITULO

Remediation of Cadmium and Lead in Mine Soil by Ameliorants and Its Impact on Maize (Zea mays L.) Cultivation

Qiyue Chen    
Lei Wang    
Bo Li    
Siteng He    
Yang Li    
Yongmei He    
Xinran Liang and Fangdong Zhan    

Resumen

The soil in a lead?zinc mining area, contaminated with heavy metals like cadmium (Cd) and lead (Pb), poses a risk to crops such as maize. Experiments using biochar and sepiolite as soil ameliorants in potted maize showed these substances can mitigate heavy metal contamination. Biochar increased potassium and phosphorus in the soil and maize, while sepiolite significantly boosted overground phosphorus by 73.2%. Both ameliorants transformed Cd and Pb into a more stable state in the soil, reducing their accumulation in maize, especially with biochar, which effectively inhibited metal migration during leaching events. This study provided insights for further improvement of soil amendments and multi-factor application experiments.

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