College Resources & Environment, Southwest University, Chongqing, 400716 PR China. A combination of slag fertilizer and microbial remediation strategies could be proposed for effective remediation of soil contaminants. Effects of steel slag and biochar incorporation on active soil organic carbon pools in a subtropical paddy field. In recent years, extensive research has been conducted to obtain a mechanistic understanding of the contribution of microbial communities to ecosystem functioning under various agronomic management practices. Intensive agricultural production often impacts the soil microbiome at a cost to productivity, sustainability and the environment. Microbiol. (2017) reported that the silicate fertilizer amendment significantly decreased denitrification potential and nirS and nirK gene abundance in paddy soils. 120, 8–17. Since slag is rich in lime (CaO), silicic acid (SiO2), phosphoric acid (P2O5), magnesia (MgO), Mn, and Fe, these properties of the slag can be exploited to make use of fertilizer (Ito, 2015). Loss of crop diversity, decline of pollinators and increased vulnera… 61, 704–718. The potential effects of slag on crop plants have been described in the separate subheading and also shown in Figure 2. Altmetric Badge. (2012) reported that the silicate fertilization is not effective in reducing CH4 emissions in green manure amended paddy soils probably due to the enhanced decomposition of added organic matter by the silicate liming effect. “The achievement in improved crop varieties and quality plays an important role in the production of food and hence ensuring food security,” said Johanna Andowa, Director of Research at the Ministry. With advances in omic techniques, soil microbial communities and community-level molecular characteristics have been exploited as early indicators of ecosystem processes for sustainable soil management and agricultural productivity (Shokralla et al., 2012). The increase in grain yield, however, mostly depends on slag type, application rate, soil type, and agronomic management. (2012). Fertil. "Soil acts as a filter for contaminants. , 2007 ). Microbiol. Fertilizers made of steelmaking slag are important inexpensive materials for recovering degraded paddy fields. Since slag fertilizers are a rich source of silicon minerals and alkaline in nature, their application in agricultural soil may potentially increase soil carbon sequestration. A plan that outlines how a developer will address concerns raised by a project's impact on the environment. Effect of silicate slag application on wheat grown under two nitrogen rates. This necessitates silicate fertilizer amendment in rice cropping systems for sustainable rice cultivation. Soil micro-organisms are vital for soil health and food security. Mineral CO2 sequestration by environmental biotechnological processes. Overview of attention for article published in Frontiers in Microbiology, June 2019. doi: 10.12944/CWE.10.3.29, Das, S., and Adhya, T. K. (2014). Published on 21 Apr 2020. Declining soil health causes poor crop yields, which in turn adds pressure on the soils as farmers struggle to produce enough food. Intensive rice cultivation to meet the growing food demand chronically depletes Si from soil, thus degrades soil quality and decreases the crop yield (Branca and Colla, 2012). With increasing application rate, humic acid enhanced the … Silicate fertilization in no-tillage rice farming for mitigation of methane emission and increasing rice productivity. Effects of steel slag applications on CH4, N2O and the yields of Indonesian rice fields: a case study during two consecutive rice-growing seasons at two sites. It is therefore urgent to develop and adopt optimal soil-improving cropping systems (SICS) that can allow us to decouple these system parameters. The great exposure of agricultural lands to heavy metals can cause food security risk through the soil-plant-food chain transfers (Chaney et al., 2004). Crop breeding is helping farmers in the developing world produce higher yields and better products under increasingly harsh conditions. Microbiol., 18 June 2019 Likewise, the iron matter of special fertilizer has been used to mitigate the toxicity of heavy metals in soil as well as in the plant. There are several examples, as follows: as can be stabilized by sorption on Fe oxyhydroxide and also by the formation of amorphous Fe(III) arsenates; Cr can be stabilized by the reduction from more mobile and toxic Cr(VI) to less toxic and stable Cr (III); Cu can be stabilized by precipitation of Cu carbonates and oxyhydroxides, iron exchange and formation of ternary cation-anion complexes on the surface of Fe and Al oxyhydroxides; and Pb and Zn can be immobilized by phosphorus amendments (Branca and Colla, 2012). This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). (2018). B., and Kim, P. J. Complete residue removal for fodder and fuel is a norm in south Asia and Africa. It is well recognized that the enzyme carbonic anhydrase (CA) participates in silicate weathering and carbonate formation and thus plays an important role in the biomemetic CO2 sequestration (Bose and Satyanarayana, 2017). Microbiologists are investigating how the soil microbiome can be harnessed as a tool for sustainable agricultural intensification. (2004). The UN’s Sustainable Development Goal SDG 2 aims to ‘end hunger, achieve food security and improved nutrition and promote sustainable agriculture’. Silicon and plants: current knowledge and technological perspectives. The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The slag fertilizer amendment markedly affects the soil solution composition through acid–base, precipitation, and sorption reactions. Mol. Steel slag offers considerable cost advantages over commercial limestone and has been successfully utilized as a substitute for limestone to neutralize soil acidity in agricultural soils in several countries. Elements 4, 333–337. Unlike CH4 emissions, the slag fertilizer effects on N2O emissions from rice cropping systems are contradictory. While in the past, steel-making processes were exclusively designed for the production of specific quality and quantities of iron and steel, one of today’s goals for steel making is to design and develop technologies to produce high-quality slag according to the market requirements. 30 . This one has done well, scoring. “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). doi: 10.1016/j.wasman.2009.05.018, Ali, M. A., Lee, C. H., Lee, Y. (2015). However, risks to food security may be increased, because supply chains become more vulnerable and because of pollution. Farming with crops and rocks to address global climate, food and soil security. doi: 10.1080/00380768.2015.1041861, Wang, M., Hu, R., Zhao, J., Kuzyakov, Y., and Liu, S. (2016). Gustavo Teixeira, Module lead at the Breeding Operations and Phenotyping module for CGIAR Excellence in Breeding (EiB), explores how breeding success is inextricably linked to how we address soil degradation on this World Soil Day. With the increase in population, the available land to dispose of large amounts of slag in landfill sites is reduced and the disposal cost is becoming increasingly higher. 128, 21–26. The use of slag fertilizer instead of agricultural lime (limestone) to increase soil pH would eliminate the dissolution of lime as an important source of agricultural CO2 emissions. Front. Optimize soil nutrient levels to improve crop yields. The main objective of the project was to enhance food security, improve soil fertility, and mitigate greenhouse gases from agriculture using integrated cropping-livestock systems in … Soil health, mediated by SOC dynamics, is a strong determinant of global food and nutritional security. The entry of heavy metals/metalloids into the food chain is a critical issue of current public health (Chand et al., 2015). Besides, the slag fertilizer amendment may induce changes in soil enzyme activities that affect soil nutrient mobilization and microbial dynamics. In a recent study, Song et al. 164, 73–80. World Environ. There are only few reports concerning the effects of the slag fertilizer amendment on carbon sequestration in cropping systems. doi: 10.1016/j.agee.2008.04.014, Beerling, D. J., Leake, J. R., Long, S. P., Scholes, J. D., Ton, J., Nelson, P. N., et al. specific agroforestry strategy in which annual and perennial crops are grown between contoured rows of … Civil Eng. Biol. Soil nutrients. Since the mechanisms of slag-microbe interactions in soil are still not clear, this perspective focuses on the synthesis of several possible mechanisms based on published research. However, these massive production gains have come at high environmental costs, which have affected soil Soil Sci. Carbon dioxide sequestration in soils is well recognized as an avenue to mitigate climate change. 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. The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. (2017). Improvement of soil quality and crop yield and effective management of water and nutrients. Fertilizers made of slag are categorized as slag silicate fertilizer, lime fertilizer, slag phosphate fertilizer, and iron matter of special fertilizer (Ito, 2015). ISBN: 978-953-51-0327-1. http://cdn.intechopen.com/pdfs/32571/InTech-Possible_uses_of_steelmaking_slag_in_agriculture_an_overview.pdf, Chand, S., Paul, B., and Kumar, M. (2015). Plant Sci. Trends Biotechnol. UPL’s fungicides are fighting an aggressive battle for food, fodder as well as industrial crops against a broad spectrum of crop diseases. Microorganisms and climate change: terrestrial feedbacks and mitigation options. (2018). To meet a growing global demand for food and fodder, one can opt for increasing yields through intensification and/or for extending the land base used for agricultural cultivation. ed. Plant Sci. Rev. Owing to its high Si content, the use of slag as silicate fertilizer is gaining demand. Environ. doi: 10.1371/journal.pone.0168163, Oelkers, E. H., Gislason, S. R., and Matter, J. (2015). Hiltunen, R., and Hiltunen, A. Environmental risk assessment of steel-making slags and the potential use of LD slag in mitigating methane emissions and the grain arsenic level in rice (Oryza sativa L.). It can be postulated that slag fertilizer amendment not only increases soil nutrients per se, but also enriches soil microorganisms that have a beneficial role in nutrient mobilization (e.g., carbon and nitrogen mineralization, phosphorus solubilization, nitrogen fixation, etc.). You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. (2008). Summary of potential effects of slag on crop plants. Due to the high reactivity of CaO and MgO and high pH (i.e., 12.5) of Ca(OH)2, repeated application of slag may make the soil excessively alkaline, which may decrease the bioavailability and uptake of macronutrients such as P and micronutrients such as Fe, Cu, and Zn by the plant and likely hinder plant growth and productivity (Chand et al., 2015). Environ. The strong relationship between soil health and food security calls for strategic and immediate actions especially at the local level to reverse soil degradation, in order to increase food production and alleviate food insecurity in the areas where it is most needed and in the context of climate change. Effects of ferric iron reduction and regeneration on nitrous oxide and methane emissions in a rice soil. The initiative promotes development and implementation of innovative farming and farm management practices based on system approaches that harness natural resources (through utilisation of crop and soil microbiomes) to sustainably increase farm productivity, food quality and environmental health. Chemosphere 74, 481–486. Nippon steel and Sumitomo metal technical report no. D. Achilias (InTech). (2006), however, revealed that the long-term application of converter slag significantly increased Cr and V contents in the cultivated layer of soil. Impacts of steel-slag-based silicate fertilizer on soil acidity and silicon availability and metals-immobilization in a paddy soil. At the system level, soil microorganisms play an integral role in virtually all ecosystem processes. Nat. Correspondence doi: 10.1007/s00374-017-1206-0, Susilawati, H. L., Setyanto, P., Makarim, A. K., Ariani, M., Ito, K., and Inubushi, K. (2015). Rev. Front. |, Driving Mechanisms of Slag-Microbe Interactions in Soil, Slag-Microbe Interaction Effects on Crop Yield, Slag-Microbe Interaction Effects on Greenhouse Gas Emissions, Slag-Microbe Interaction Effects on Soil Carbon Storage, Slag-Microbe Interaction Effects on Heavy Metal Stabilization in Contaminated Soils, Environmental Concerns About the Use of Slag in Agriculture, https://www.frontiersin.org/articles/10.3389/fmicb.2019.01320/full#supplementary-material, http://cdn.intechopen.com/pdfs/32571/InTech-Possible_uses_of_steelmaking_slag_in_agriculture_an_overview.pdf, http://www.nssmc.com/en/tech/report/nssmc/pdf/109-23.pdf, Creative Commons Attribution License (CC BY). (2015) suggested that the silicate fertilization is not significantly effective in improving the rice yield. However, to secure the reliability of the slag as fertilizer, it is quite necessary to conform to the regulations on hazardous heavy metals provided by the Fertilizer Control Law and the soil environmental standards provided by the Basic Law for Environmental Pollution Control. The recent advances in omic techniques, e.g., high-throughput sequencing, metatranscriptomic analysis, and DNA/RNA-based stable isotope probing (SIP) will no doubt be imperative to uncover the hidden dimensions of slag-microbe interactions in ecosystem functioning. Appl. All authors contributed to the intellectual input and provided assistance to the manuscript preparation. There is a growing … Methane emission from soils is regulated by CH4−producing archaea, i.e., methanogens, and CH4-consuming bacteria, i.e., methanotrophs, while N2O emission is mostly regulated by nitrifying and denitrifying bacteria (Singh et al., 2010). Figure 1. Geochem. Microbiologists are investigating how the soil microbiome can be harnessed as a tool for sustainable agricultural intensification. Next-generation sequencing technologies for environmental DNA research. Click here to see the associated Mendeley record. 8:1702. doi: 10.3389/fmicb.2017.01702, Detmann, K. C., Araujo, W. L., Martins, S. C. V., Sanglard, L. M. V. P., Reis Josimar, V., Detmann, E., et al. doi: 10.2113/gselements.4.5.333, Piatak, N. M., Parsons, M. B., and Seal, R. R. II (2015). Microbiol. Wang et al. (2018) reported that the addition of steel slag and biochar in subtropical paddy fields could decrease active SOC pools and enhance soil C sequestration only in the early crop, but not the late crop. Suvendu Das; Hyo Suk Gwon; Muhammad Israr Khan; Seung Tak Jeong; Pil Joo Kim; Scientific Reports. This one has done well, scoring, Older research outputs scored by Altmetric subheading and also shown Figure. N. M., Parsons, M. ( 2011 ) Lopez, A. F., Lutts, S., Jeong S.... 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