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Agriculture
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Tillage Effects on Soil Carbon Sequestration and Soil Organic Matter
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Tillage Effects on Soil Carbon Sequestration and Soil Organic Matter

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Soils".

Deadline for manuscript submissions: closed (15 July 2022) | Viewed by 4880

Special Issue Editor

Prof. Dr. Xiaoliang Qin

E-Mail Website
Guest Editor
College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China
Interests: conserving cultivation; yield; soil quality; nutrient utilization; soil microorganism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Agro-ecosystem is an important part of terrestrial ecosystems, which accounts for 8% -10% of terrestrial soil carbon storage. Along with the global commitment to greenhouse gas reduction and food security, the dynamic change of soil organic carbon in agro-ecosystems is increasingly becoming a hot topic in the study of organic carbon. Different tillage measures affect carbon cycling of agro-ecosystem, improper agricultural management measures can easily cause more carbon emissions, and reasonable farming measures are useful for carbon sequestration in farmland. The accumulation of soil organic carbon can not only improve soil productivity, but also reduce the increase rate of atmospheric CO2 concentration.

This Special Issue focuses on “Tillage effects on soil carbon sequestration and soil organic matter”, and the aim of this issue is to bring together contributions about SOC storage and sequestration under different tillage measures, to show how different tillage measures affecting soil organic are intercepted for better understanding of SOC-related soil processes, and explore the stability mechanism of soil carbon sequestration for better assessing of how to achieve an increase in SOC stocks. For this reason, we welcome highly interdisciplinary quality studies from disparate research fields including agriculture, soil microbiology, modeling, and environmentalism. Original research articles and reviews are accepted.

Prof. Dr. Xiaoliang Qin
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 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

  • land degradation
  • conservation tillage
  • yield
  • tillage measures
  • greenhouse gases
  • residue management
  • crops agricultural
  • soil microbiology
  • soil aggregate

Published Papers (2 papers)

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Research

15 pages, 1327 KiB  
Article
No-Till Mitigates SOC Losses after Grassland Renovation and Conversion to Silage Maize
by Josue De Los Rios, Arne Poyda, Friedhelm Taube, Christof Kluß, Ralf Loges and Thorsten Reinsch
Agriculture 2022, 12(8), 1204; https://doi.org/10.3390/agriculture12081204 - 12 Aug 2022
Cited by 6 | Viewed by 1749
Abstract
Many studies recommend no-till (NT) to increase soil organic carbon (SOC) in the topsoil (<30 cm) of arable land to counterbalance greenhouse gas emissions. Its potential use to mitigate SOC losses during conversion and renovation of grassland ecosystems in the top meter soil [...] Read more.
Many studies recommend no-till (NT) to increase soil organic carbon (SOC) in the topsoil (<30 cm) of arable land to counterbalance greenhouse gas emissions. Its potential use to mitigate SOC losses during conversion and renovation of grassland ecosystems in the top meter soil is yet to be determined. The SOC dynamics of a 10-year-old grassland converted to silage maize (CM) and renovated and seeded (GR) using either conventional tillage (CT) or NT were compared to an undisturbed grassland control (GC) for 7 years, across three fixed soil depth increments (0–30, 30–60, 60–90 cm). The annual C inputs (Cinput) from crop residues were further analyzed. The systems were either non-fertilized (N0) or fertilized with mineral N (N1) according to a demand of 180 and 380 kg N ha−1 year−1 in the silage maize and grassland systems, respectively. For the 7-year period, the renovated grassland using NT ensured maintenance of the initial SOC in the topsoil, while a conversion toward arable cropping resulted in SOC losses, regardless of the tillage method. The use of NT during conversion significantly reduced these losses from 2.5 Mg ha−1 year−1 to 1.8 Mg ha−1 year−1, for a 28% reduction compared to CT. In the subsoil (30–90 cm), SOC remained stable and was not affected by the cropping systems nor by the tillage method. Reduced annual Cinput was found as the main factor affecting SOC losses after grassland removal, regardless of the tillage method. Our findings highlight the potential of NT to mitigate annual SOC losses after grassland conversion if annual Cinput remains high. Full article
(This article belongs to the Special Issue Tillage Effects on Soil Carbon Sequestration and Soil Organic Matter)
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14 pages, 534 KiB  
Article
Conservation Agricultural Practices Impact on Soil Organic Carbon, Soil Aggregation and Greenhouse Gas Emission in a Vertisol
by Somasundaram Jayaraman, Meenakshi Sahu, Nishant K. Sinha, Monoranjan Mohanty, Ranjeet S. Chaudhary, Brijesh Yadav, Lalit K. Srivastava, Kuntal M. Hati, Ashok K. Patra and Ram C. Dalal
Agriculture 2022, 12(7), 1004; https://doi.org/10.3390/agriculture12071004 - 11 Jul 2022
Cited by 5 | Viewed by 2515
Abstract
Conservation agriculture (CA), comprising of minimum soil disturbance and crop residue retention (>30%), with a diversified cropping system, has become increasingly popular around the world. It is recognized as a sustainable practice to improve soil health by augmenting key soil properties. However, scanty [...] Read more.
Conservation agriculture (CA), comprising of minimum soil disturbance and crop residue retention (>30%), with a diversified cropping system, has become increasingly popular around the world. It is recognized as a sustainable practice to improve soil health by augmenting key soil properties. However, scanty information exists about the effect of CA practices on soil organic carbon (SOC), aggregation and greenhouse gas emissions (GHG) in a vertisol. Thus, this study investigated the effect of CA practices on SOC, soil aggregation and GHG emission under soybean-wheat and maize-chickpea cropping systems in a vertisol in Central India. Treatment consisted of three different tillage practices, being conventional tillage (CT), reduced tillage (RT), and no tillage (NT) under four cropping systems viz., Soybean–Wheat, Soybean + Pigeon pea (2:1), Maize–Chickpea and Maize + Pigeon pea (1:1). Regardless of cropping system, the soil under NT and RT exhibited better aggregation (20.77 to 25.97% increase), and SOC (12.9 to 19.4% increase) compared to the CT practice in surface layers. The aggregate-associated C concentration increased with aggregate size, and it was highest with large macroaggregates and lowest with silt and clay fractions across different tillage and cropping systems. Higher SOC stock was recorded under NT (4.22 ± 0.133 Mg C/ha) compared to RT (3.84 ± 0.123 Mg C/ha) and CT (3.65 ± 0.04 Mg C/ha) practices at 0 to 5 cm depth. Thus, the adoption of CA practices reduced CO2 emissions, while also contributing to increases in SOC as well as improvement in soil structure. Full article
(This article belongs to the Special Issue Tillage Effects on Soil Carbon Sequestration and Soil Organic Matter)
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