Cropping With Slag to Address Soil, Environment, and Food Security
Open accessAbstract
The effective utilization of slag fertilizer in agriculture to neutralize soil acidity, improve crop productivity, mitigate greenhouse gas emissions, and stabilize heavy metals in contaminated soils turns it into a high value added product in sustainable agriculture. These effects could be due to the shift in microbial metabolism and/or modification of microbial habitats. At the system level, soil microorganisms play an integral role in virtually all ecosystem processes. There is a growing interest to reveal the underlying mechanisms of slag-microbe interactions and the contribution of soil biota to ecosystem functioning. In this perspective, we discuss the possible driving mechanisms of slag-microbe interactions in soil and how these slag-microbe interactions can affect crop yield, greenhouse gas emissions, soil carbon sequestration, and heavy metal stabilization in contaminated soils. In addition, we discuss the problems and environmental concerns in using slag in agriculture. Emphasis has been given for further research to validate the proposed mechanisms associated with slag-microbe interactions for increasing soil quality, crop productivity, and mitigating environmental consequences. While evaluating the slag amendment, effects on agriculture and environment, the potential risks, socio-economics, techno-economics, and ethics should be assessed.
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Abatement of soil N2O emissions by basalt application to conventionally managed arable and perennial crops, and of N2O and CH4 emissions by application of artificial silicates to rice agriculture, is possible.
“Abatement of soil N2O emissions by basalt application to conventionally managed arable and perennial crops 31 , and of N2O and CH4 emissions by application of artificial silicates to rice agriculture 32 , is possible.”
From Potential for large-scale CO2 removal via enhanced rock weathering with croplands (2020) · cites this paper as [32]
Agricultural production can benefit substantially from increased resource use efficiency, reducing consumption of raw materials and recovering mineral nutrients from silicate byproducts and overburden legacy reserves.
“Agricultural production can benefit substantially from increased resource use efficiency, reducing consumption of raw materials and recovering mineral nutrients from silicate byproducts 32,42,43 , and overburden legacy reserves 44 .”
From Potential for large-scale CO2 removal via enhanced rock weathering with croplands (2020) · cites this paper as [32]
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References 35 · Cited by 107
Research works printed but not linked: 1
- Hiltunen R. Hiltunen A. (2004). “ Environmental aspects of the utilization of steel industry slags” in Proceedings of VII intenational conference on molten slags, fluxes and salts (Cape Town, South Africa: The South African Institute of Mining and Metallurgy). ISBN: 1-919783-58-X.
- Authors
- Das, S., Kim, G. W., Hwang, H. Y., Verma, P. P., & Kim, P. J.
- Affiliations
- Gyeongsang National University (KR)
- Western Sydney University (AU)
- Corresponding author
- Kim, Pil Joo
- Venue
- Frontiers in Microbiology
- Publisher
- Frontiers Media SA
- Published
- 2019-06-18
- Volume
- 10
- Pages
- 1320-1320
- ISSN
- 1664-302X (ISSN-L)
- PMC
- PMC6592145
- OpenAlex
- W2952937882
- Cited by
- 107
- References
- 35
- Citations by year
- 2026: 12 · 2025: 15 · 2024: 16 · 2023: 12 · 2022: 14 · 2021: 14 · 2020: 23 · 2019: 1
- FWCI
- 1.09
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Frontiers in Microbiology (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Ministry of Education (NRF-2017R1A2B2002239)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Keywords
- soil acidity neutralization, crop productivity, greenhouse gas emissions reduction, soil carbon sequestration, heavy metal immobilization, contaminated soil, soil microbes, food security, sustainable agriculture, techno-economic analysis
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