Zarei Ahmad, Rokni Hassan Reza
Department of Environment Health Engineering, School of public Health, Social Determinates of Health Research Center, Gonabad University of Medical Sciences, Gonabad, Iran.
Student Research Committee, Gonabad University of Medical Sciences, Gonabad, Iran.
MethodsX. 2024 Aug 22;13:102917. doi: 10.1016/j.mex.2024.102917. eCollection 2024 Dec.
Cadmium is a common environmental heavy metal that is very toxic and carcinogenic for human and other flora and fauna. Therefore, this study is aimed to evaluate the fisibility of vermicompost fertilizer for cadmium uptake from soil by the root of radish (). For the purpose of the study, four different ratios of one case control, 1 per 1, 1 per 4, 2 per 4, 3 per 4 vermicompost fertilizer per soil with 0, 50000 and 100000 µg/L cadmium concentrations was evaluated. Cadmium in the samples was measured using an Atomic Absorption Spectroscopy (AAS). The results showed that the minimum uptake of cadmium by the plant was observed for 3 per 4 ratio of fertilizer per soil. In addition, results revealed that highest growth rate of roots occurred in maximum ratio of fertilizer per soil usage (3 per 4). This study showed that vermicompost as a organic fertilizer has a good ability to adsorb cadmium metal from soil. Therfore, vermicompost application can be considered as an inexpensive natural adsorbent in arable land contaminated with cadmium.•Heavy metals are very toxic and carcinogenic to human and animals.•Adding organic fertilizer to the soil increases the absorption of heavy metal (cadmium) in the soil and prevents it from entering the food chain.•The relationship between the concentration of cadmium absorbed by the tuber of radish plant and the percentage of vermicompost added to the soil is presented.
镉是一种常见的环境重金属,对人类以及其他动植物具有很强的毒性和致癌性。因此,本研究旨在评估蚯蚓堆肥肥料对萝卜根部从土壤中吸收镉的可行性。为了该研究目的,评估了四种不同比例的情况,即每单位土壤分别添加1:1、1:4、2:4、3:4的蚯蚓堆肥肥料,并设置了镉浓度为0、50000和100000μg/L的对照。使用原子吸收光谱法(AAS)测量样品中的镉含量。结果表明,每单位土壤中肥料比例为3:4时,植物对镉的吸收量最低。此外,结果还显示,每单位土壤中肥料使用比例最高(3:4)时,根的生长速率最高。本研究表明,蚯蚓堆肥作为一种有机肥料具有从土壤中吸附镉金属的良好能力。因此,在受镉污染的耕地上,蚯蚓堆肥的应用可被视为一种廉价的天然吸附剂。
•重金属对人类和动物具有很强的毒性和致癌性。
•向土壤中添加有机肥料会增加土壤中重金属(镉)的吸收,并防止其进入食物链。
•呈现了萝卜植株块茎吸收的镉浓度与添加到土壤中的蚯蚓堆肥百分比之间的关系。