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Soil Contamination and the Strategies to Reduce Pollutant Accumulation in...
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Soil Contamination and the Strategies to Reduce Pollutant Accumulation in Crops

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Ecosystem, Environment and Climate Change in Agriculture".

Deadline for manuscript submissions: 25 July 2025 | Viewed by 409

Special Issue Editor

Dr. Chuntao He

E-Mail Website
Guest Editor
State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Stress Biology, School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
Interests: crops; microorganism; ecosystem; environment; pollutant behavior; mechanism; food quality and safety

Special Issue Information

Dear Colleagues,

Human activities, such as industry, waste incineration, and phosphate fertilizer, have led to contamination in agricultural soil. The continuous use of contaminated agricultural soil has given rise to pollution in cereal crops, fruits, vegetables, and other commercially important plants in recent years. Therefore, it is urgent to minimize the pollutant accumulation in crops through soil remediation, pollution-safe cultivar breeding, microbial agents, and other potential strategies. For this Special Issue, we cordially welcome scientific contributions aimed at food safety by reducing pollutant accumulation in crops. Both high-quality original research papers and comprehensive reviews are welcome.

The areas of interest encompassed by this Special Issue include, but are not limited to, the following:

  1. Pollutant migration and transformation in soil ecosystems;
  2. Phytoremediation, microbial agents, cropping patterns, and other approaches to reduce crop contamination;
  3. The pollutant behavior in crops and hyperaccumulator plants;
  4. Microbial remediation and microbial response to the soil contamination;
  5. The plant physiology and molecular mechanism responding to the pollutant exposure;
  6. Environmental policy to manage the accumulation of pollutants in crops.

Dr. Chuntao He
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agriculture is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • heavy metals
  • pollutants
  • agricultural soil
  • accumulation
  • transportation
  • crop
  • hyperaccumulator
  • microorganism
  • remediation
  • mechanism
  • safety production

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Published Papers (1 paper)

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Research

18 pages, 5579 KiB  
Article
Bio-Adsorbents Derived from Allium cepa var. aggregatum Waste for Effective Cd Removal and Immobilization in Black Soil
by Yaru Hou, Jilong Lu, Yawen Lai, Qiaoqiao Wei, Zhiyi Gou and Xiaoxiao Zou
Agriculture 2025, 15(4), 427; https://doi.org/10.3390/agriculture15040427 - 18 Feb 2025
Viewed by 210
Abstract
The black soil in northeast China plays an important role in coping with global climate change. However, long-term predatory production methods and the excessive application of pesticides and fertilizers to respond to the growing demand resulted in a severe contamination of the black [...] Read more.
The black soil in northeast China plays an important role in coping with global climate change. However, long-term predatory production methods and the excessive application of pesticides and fertilizers to respond to the growing demand resulted in a severe contamination of the black soil with Cd, leading to a decrease in the properties of black soil. In this study, we propose the preparation of bio-adsorbents including a natural bio-adsorbent (AW), a modified bio-adsorbent (AM), biochar cracking at 300, 500, and 700 °C (C300, C500, C700), modified biochar (CM), and a magnetic bio-adsorbent particle (MBP) using the waste of black soil autotrophic specialty crop multiplier onion (Allium cepa var. aggregatum) to investigate the adsorption and immobilization of Cd in contaminated soil. The results show that the application of bio-adsorbents resulted in a 17.29–35.67% and 18.24–30.76% decrease in effective and total Cd content in soil after dry–wet–freeze circulation. Exchangeable Cd in soil decreased and gradually transformed to more stable fractions, with a reduction in Cd bioavailability after remediation. Interestingly, an increase in plant uptake of Cd was observed in the biochar-treated group for a short period, causing a 93.72% increase in Cd concentration in plants after the application of C700, which can be applied concomitantly with hyperaccumulator plants harvested multiple times annually by encouraging higher Cd uptake by plants. Additionally, the rich content of humic acid (HA) in black soil was capable of promoting the immobilization of Cd in soil, enhancing the Cd resistance of black soil. Bio-adsorbents derived from Allium cepa var. aggregatum waste can be applied as a new type of green and effective material for the long-term remediation of Cd in the soil at a lower cost. Full article
(This article belongs to the Special Issue Soil Contamination and the Strategies to Reduce Pollutant Accumulation in Crops)
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