Mitigating Cadmium Contamination in Crops: Balancing Fertilizer Use, Soil Amendments, and Remediation Strategies

Mitigating Cadmium Contamination in Crops: Balancing Fertilizer Use, Soil Amendments, and Remediation Strategies | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 9 April 2025 V1 Latest version Share on Mitigating Cadmium Contamination in Crops: Balancing Fertilizer Use, Soil Amendments, and Remediation Strategies Authors : Tsun Man Lee , Chun Fung Wong , Yu Bon Man , and Ming Hung Wong [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174419651.14980957/v1 157 views 85 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Cadmium (Cd) is one of the most toxic non-essential heavy metals for humans. Consumption of crops with excessive Cd can lead to health issues like kidney failure and Itai-Itai disease in humans. Fertilizers used in agriculture often contain Cd from raw materials like phosphorus rock and power plant ash, which can increase crop’s Cd levels. However, the properties of the raw materials of fertilizer can suppress crop’s ability to absorb Cd by influencing soil pH. Phosphorus fertilizers could decrease soil pH, which enhances crop’s Cd absorption, while soil with high organic matter could inhibit the absorption. Ash fertilizers could increase soil pH, dissociate protons in soil, and reduce Cd bioavailability. In contrast, short-term fertilizer and long-term use may not significantly affect Cd levels in crops. However, applying a large amount of phosphate and ash fertilizer will significantly increase the Cd accumulation in crops, requiring remediation efforts. Soil washing and adding organic and inorganic amendments can rectify the Cd concentrations in soil. Phytoremediation involves using hyperaccumulators for Cd remediation in soil. Microbial remediation employs algae, fungi, or bacteria. Some fungi (arbuscular mycorrhizal fungus) and bacteria (growth-promoting rhizobacteria) can be combined with Cd hyperaccumulators to enhance phytoremediation. Some successful intercropping and crop rotation cases for mitigating the Cd problem involving different plants and microbes are reviewed. It is essential to develop effective regulatory frameworks and management strategies to minimize the risks associated with Cd, safeguarding crop health and consumer safety. Supplementary Material File (manuscript.docx) Download 843.69 KB Information & Authors Information Version history V1 Version 1 09 April 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords ash fertilizer health impacts hyperaccumulator plants rock fertilizer soil remediation Authors Affiliations Tsun Man Lee The Education University of Hong Kong View all articles by this author Chun Fung Wong The Education University of Hong Kong View all articles by this author Yu Bon Man The Education University of Hong Kong View all articles by this author Ming Hung Wong [email protected] The Education University of Hong Kong View all articles by this author Metrics & Citations Metrics Article Usage 157 views 85 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Tsun Man Lee, Chun Fung Wong, Yu Bon Man, et al. Mitigating Cadmium Contamination in Crops: Balancing Fertilizer Use, Soil Amendments, and Remediation Strategies. Authorea . 09 April 2025. DOI: https://doi.org/10.22541/au.174419651.14980957/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. 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