Effect of calcium and organic matter as an alternative for reducing cadmium toxicity in maize: Protección del Ambiente

Cadmium (Cd) contamination in maize is crucial for ensuring food security,as this heavy metal can accumulate in the grains and pose a significant risk tohuman health. The objective of this research was to evaluate calcium (Ca) sources and organic matter (OM) as alternatives to reduce cadmium uptake in maize. A completely randomized design with a 2 x 4 factorial arrangement was used, wheredifferent treatments combining OM application and Ca sources were evaluated. Soil preparation included the addition of compost in the OM treatments. Cd contamination was induced by adding cadmium chloride (CdCl₂), followed by the application of Ca sources through irrigation. Maize seeds were planted in pots with consistent irrigation to maintain adequate moisture. Over a period of60 days, various variables were monitored and recorded, including dry weight and Cd concentration in roots and stems. The results showed highly significant differences in the dry biomass of maize leaves and roots exposed to cadmium contamination, both in simple effects and in the interaction between OM and Casources. It was observed that the incorporation of 2% OM and calcium nitrate Ca(NO₃)₂ had a significant impact on biomass production and Cd concentration in maize plants exposed to the contaminant, both independently and in combination.

• Hlavní autor: Cobeña Loor, Ana Karen (author)
• Další autoři: Morán Morán, Jéssica Jessenia (author)
• Médium: article
• Jazyk: spa
• Vydáno: 2025
• Témata: metal pesado; absorção de cádmio; biomassa seca.; absorción de cadmio; biomasa seca.; heavy metal; cadmium uptake; dry biomass.
• On-line přístup: https://revistas.utm.edu.ec/index.php/latecnica/article/view/7027