Influence of Compost and Biochar on Soil Properties

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

Deadline for manuscript submissions: 25 September 2026 | Viewed by 1056

Editors


E-Mail Website
Guest Editor
Institute of Soil Science and Plant Cultivation-State Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
Interests: soil amendments
*
E-Mail Website
Guest Editor
Department of Life and Environmental Sciences, University of California, Merced, CA 95343, USA
Interests: soil health; agricultural soil carbon sequestration; soil carbon stabilization; regenerative agriculture
* Assistant Professor-Regenerative Agriculture

Special Issue Information

Dear Colleagues,

Composting is an established practice to divert organic waste from landfills, reduce greenhouse gas emissions, generate inexpensive plant nutrients, strengthen regenerative agriculture and advance social justice. Biochar, a carbon-rich material produced by heating biomass without oxygen, when applied to soils or combined with composting, can sequester carbon for centuries, improve water retention, reduce nutrient losses, and enhance resilience to drought and extreme heat. However, biochar adoption remains limited due to high upfront costs, lack of knowledge on application rates, methods, and influence on soil health. Topics may include (but are not limited to) resilience in different textures, C:N ratios and N mineralization, rapid indicators of compost quality, weed suppression, community composting, N leaching, nutrient budgets, metagenomics and enzyme assays, PFAS, microplastics and heavy metal contamination, blended amendments, the influence of feedstock type and pyrolysis conditions on biochar function, nutrient management, PAHs and other pyrolysis byproducts, carbon markets, and regulatory compliance.

We are soliciting new research and review papers.

Prof. Dr. Grzegorz Siebielec
Dr. Srabani Das
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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized 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 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

  • compost
  • biochar
  • soil health
  • climate mitigation
  • regenerative agriculture

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

20 pages, 2460 KB  
Article
Biochar Application Enhances the Growth and Yield of Cotton in a Rain-Free Region
by Guoqiang Gao, Hongbo Liu, Ping Ding, Hongnan Jiang, Zhenlin Lu, Yungang Bai, Yanna Hou, Meng Li, Lei Zhou and Xiaonan Zhang
Agronomy 2026, 16(12), 1150; https://doi.org/10.3390/agronomy16121150 - 11 Jun 2026
Viewed by 285
Abstract
This study aimed to determine the optimal biochar application rate for sustaining cotton productivity in moderately saline soils under dry sowing with wet emergence (DSWE) conditions in Shaya County, Xinjiang. A two-year field experiment, arranged in a randomized complete block design with two [...] Read more.
This study aimed to determine the optimal biochar application rate for sustaining cotton productivity in moderately saline soils under dry sowing with wet emergence (DSWE) conditions in Shaya County, Xinjiang. A two-year field experiment, arranged in a randomized complete block design with two replicates, evaluated six biochar application rates (S1–S6) against a non-amended control (CK). The biochar, derived from fruit-wood via limited-oxygen pyrolysis at 500 °C (pH 9.82, porosity 64.5%), was applied as a single pre-sowing amendment. Soil water–salt dynamics, crop emergence, and growth parameters were continuously monitored. The results indicated that biochar application consistently reduced soil salinity; specifically, seedling-stage salinity decreased by 30.1–42.2% in the first year compared with the CK. Cotton emergence and yield improved significantly across both seasons. However, the optimal application rate for maximizing yield varied between years. While a high rate (S5: 25 t·hm−2) produced the highest first-year yield (6243.8 kg·hm−2), a moderate rate (S3: 15 t·hm−2) demonstrated greater yield stability and achieved the maximum yield (5975.2 kg·hm−2) in the second year. This interannual shift is likely attributable to biochar aging and structural pore saturation in the high-dose plots. Combined with high regional evaporation, these factors exacerbated secondary salinization and reduced the residual benefits of the amendment over time. In contrast, the moderate dose maintained a more effective balance between continuous water–salt regulation and nutrient availability. Under the experimental conditions, a single pre-sowing application of 15 t·hm−2 biochar, combined with a 375 m3·hm−2 drip irrigation volume, is recommended as an effective strategy to ameliorate salinity and support long-term yield stability. Full article
(This article belongs to the Special Issue Influence of Compost and Biochar on Soil Properties)
Show Figures

Figure 1

Back to TopTop