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Agronomy
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Effects of Organic Amendments on Soil Carbon Storage and Food...
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Effects of Organic Amendments on Soil Carbon Storage and Food Production

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: closed (10 December 2022) | Viewed by 4418

Special Issue Editors

Prof. Dr. Yanchao Bai

E-Mail Website
Guest Editor
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
Interests: soil amendment; soil carbon storage
Special Issues, Collections and Topics in MDPI journals
Dr. Chuanhui Gu

E-Mail Website
Guest Editor
Environmental Research Center, Duke Kunshan University, Kunshan 215316, China
Interests: soil amendment; saline-alkali land; soil carbon storage; carbon and nitrogen cycling; soil greenhouse gas emissions
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The world’s soils possess the largest organic carbon stock in terrestrial ecosystems, about 2–3 times higher than the atmospheric carbon pool, and 3–4 times of the terrestrial vegetation carbon pool. Increasing evidence has shown that the soil carbon pool plays a critical role in terrestrial carbon cycling and is central to maintaining soil quality, crop yield, and environmental protection in agroecosystems.

Application of organic amendments has been considered a sustainable agricultural management strategy to provide win-win benefits for waste disposal, carbon storage, and food security. For example, different organic wastes and waste-derived materials (e.g., manures, plant residues, and composts) are recommended organic amendments to bring extra nutrients and organic matter into agricultural soils, which favor the improvement of soil physical, chemical, and biological properties and crop productivity.

This Special Issue aims to identify and answer questions around how we can optimize organic amendment toward carbon storage enhancement and crop advancement. We welcome cutting-edge research, technology reports, and review articles focusing on the relationships of organic amendments–soil carbon storage–crop productivity and their future trends, particularly in the context of different climates, soil properties, and management practices, and organic amendment properties.

Prof. Dr. Yanchao Bai
Dr. Chuanhui Gu
Guest Editors

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. Agronomy is an international peer-reviewed open access monthly 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

  • organic amendment
  • soil carbon storage
  • crop production

Published Papers (2 papers)

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Research

14 pages, 1261 KiB  
Article
Differential Effects of Organic Ameliorants on the Reassembly of Bacterial Communities in Newly Amended Coastal Mudflat Salt-Affected Soil
by Yunlong Li, Yimin Wang, Chuanhui Gu, Chao Shen, Lu Xu, Yilin Zhao, Siqiang Yi, Wengang Zuo, Yuhua Shan, Zhuqing Zhang and Yanchao Bai
Agronomy 2022, 12(10), 2525; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy12102525 - 16 Oct 2022
Cited by 4 | Viewed by 1570
Abstract
Understanding the influences of organic ameliorants amendment on the soil microbiome is fundamental for the alleviation of environmental constraints in coastal mudflat salt-affected soils. However, how the compositional and structural diversity of the microbial community responds to different organic inputs, and key environmental [...] Read more.
Understanding the influences of organic ameliorants amendment on the soil microbiome is fundamental for the alleviation of environmental constraints in coastal mudflat salt-affected soils. However, how the compositional and structural diversity of the microbial community responds to different organic inputs, and key environmental determinants and relevant mechanisms driving soil microbiome reassembly in coastal agroecosystems have not been illustrated. In this study, field experiments were conducted to investigate the effectiveness and underlying mechanisms of sewage sludge (S) and sludge-based vermicompost (V) at different application amounts (0, 50, 100, and 200 t ha−1) on variations in the compositional and structural diversities of soil bacterial community in coastal mudflats. The underlying driving factors, including soil physicochemical and enzymatic properties, were determined to estimate their effects on soil bacterial community. Results show that both types and amounts of organic ameliorants exerted significant influence on the alterations of bacterial community diversities. Particularly, restructured bacterial communities with significantly higher bacterial populations, lower Shannon diversities, and distinct core and unique community profiles were observed in organic ameliorant-amended soils as compared to CK. The co-occurrence networks of bacterial core OTUs reveal that V exhibited more profound effects than those of S on the scale and interactions enhancement and stability reduction of soil bacterial guilds. Additionally, both S and V significantly alleviated environmental constraints with lower pH and salinity, but higher soil organic carbon (SOC) amounts and enzyme activities were observed in the amended soils. Moreover, the effects of S and V on soil amendment were enhanced with the increase in the application amounts of organic ameliorants. Redundancy analysis (RDA) reveals that environmental factors (e.g., pH, salinity, SOC, sucrase, urease, and phosphatase) were pivotal determinants, accounting for 78.05% of the total bacterial community variations in coastal salt-affected soils across different treatments. Full article
(This article belongs to the Special Issue Effects of Organic Amendments on Soil Carbon Storage and Food Production)
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10 pages, 1548 KiB  
Article
Effects of Vermicompost Application on Growth and Heavy Metal Uptake of Barley Grown in Mudflat Salt-Affected Soils
by Ziyi Shen, Zhixuan Yu, Lu Xu, Yilin Zhao, Siqiang Yi, Chao Shen, Yimin Wang, Yunlong Li, Wengang Zuo, Chuanhui Gu, Yuhua Shan and Yanchao Bai
Agronomy 2022, 12(5), 1007; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy12051007 - 22 Apr 2022
Cited by 13 | Viewed by 2269
Abstract
China is facing a shortage of arable land resources, and the mudflat salt-affected soil along the east coast of China is an important reserve arable land resource. In this study, we conducted a randomized field trial to investigate the effects of vermicompost application [...] Read more.
China is facing a shortage of arable land resources, and the mudflat salt-affected soil along the east coast of China is an important reserve arable land resource. In this study, we conducted a randomized field trial to investigate the effects of vermicompost application rate (0, 25, 50, 125, and 250 t ha−1) on barley growth and heavy metal accumulation in mudflat salt-affected soil. We found that vermicompost application decreased bulk density, electrical conductivity (EC), and pH of mudflat salt-affected soil while increasing its organic carbon, nitrogen, and phosphorus contents. With the increase in vermicompost application rate, the yield of grain and total biomass of barley plants increased. The yield of grain in the vermicompost application treatments of 25, 50, 125, and 250 t ha−1 increased by 66.0%, 226.0%, 340.0%, and 512.0%, respectively, relative to the control. In addition, the concentrations of heavy metals (Cd, Cr, Cu, and Zn) in mudflat salt-affected soil and barley plant increased as the vermicompost application rate increased. Full article
(This article belongs to the Special Issue Effects of Organic Amendments on Soil Carbon Storage and Food Production)
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