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.). Although mineral carbonation is thermodynamically favorable, it proceeds very slowly (Oelkers et al., 2008). specific agroforestry strategy in which annual and perennial crops are grown between contoured rows of … Received: 03 December 2018; Accepted: 27 May 2019; Published: 18 June 2019. (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. doi: 10.1038/nrmicro3347, Mosa, K. A., Saadoun, I., Kumar, K., Helmy, M., and Dhankher, O. P. (2016). 31, 139–146. Microorganisms and climate change: terrestrial feedbacks and mitigation options. doi: 10.1016/j.jhazmat.2018.04.023. |, 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). For a better understanding of the long-term effects of the slag fertilizer amendment in agriculture, further research under diverse soil types and agronomic management practices need to be carried out. Environ. Characteristics and environmental aspects of slag: a review. 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. “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). Soil micro-organisms are vital for soil health and food security. Effects of steel slag and biochar incorporation on active soil organic carbon pools in a subtropical paddy field. A major challenge of the Sustainable Development Goals linked to Agriculture, Food Security, and Nutrition, under the current global crop production paradigm, is that increasing crop yields often have negative environmental impacts. Microbial carbonic anhydrases in biomimetic carbon sequestration for mitigating global warming: prospects and perspectives. Agriculture significantly contributes to the emission of methane (CH4) and nitrous oxide (N2O), which are two of the most important greenhouse gases responsible for global warming (Das and Adhya, 2014). Fertilizers made of slag are categorized as slag silicate fertilizer, lime fertilizer, slag phosphate fertilizer, and iron matter of special fertilizer (Ito, 2015). There is an urgent need to evaluate the fate of soil carbon and carbon sequestration potential of slag fertilizer in field conditions. However, risks to food security may be increased, because supply chains become more vulnerable and because of pollution. This necessitates silicate fertilizer amendment in rice cropping systems for sustainable rice cultivation. In addition, long-term experiments in Germany showed that steel slag fertilizer amendment did not increase bio-available Cr content in soil and Cr uptake by plants (Hiltunen and Hiltunen, 2004). Rev. Slags contain traces of heavy metals, but the concentrations of heavy metals might not be enough to pose environmental risks (Gwon et al., 2018); however, it is believed that the long-term application of slag fertilizer in agriculture may accumulate heavy metals/metalloids in soil and may cause health risks. (Luxembourg: International). Moreover, silicate fertilizer amendment can increase root biomass and O2 transport from the plant to root by enlarging arenchyma gas channels (Liang et al., 2007), which in turn suppresses CH4 production and stimulates CH4 oxidation. In the latest edition of Talking Crop , Gideon Ashworth explains just how crucial good quality soil is for growing the crops we need to survive ahead of the UN’s World Soil Day on 5 December. The irrigation that grows crops, especially in dry countries, can also be responsible for taxing aquifers beyond their capacities. Impact Factor 4.235 | CiteScore 6.4More on impact ›, Role of Microbes in Climate Smart Agriculture These effects could be due to the shift in microbial metabolism and/or modification of microbial habitats. 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. Mechanisms of silicon-mediated alleviation of abiotic stresses in higher plants: a review. Environ. Plant Sci. Likewise, the introduction of plant growth promoting bacteria possessing CA activity in agriculture could have the dual benefit of increased crop yield and CO2 sequestration. 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). They typically receive a little more attention than average, with a mean Attention Score of 6.1. Soils 53, 627–638. We developed an integrated soil–crop system management (ISSM) approach designed to make maximum use of solar radiation and periods with favorable temperatures, and designed for greater synchrony between crop demand for N and its supply from soil, environment, and applied inputs . 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). Articles, University of Southampton, United Kingdom. doi: 10.3390/plants6040047, Yildirim, I. Evaluation of silicate iron slag amendment on reducing methane emission from flood water rice farming. doi: 10.1016/j.fcr.2014.10.014, White, B., Tubana, B. S., Babu, T. Jr., Mascagni, H., Agostinho, F., Datnoff, L. E., et al. No use, distribution or reproduction is permitted which does not comply with these terms. 30 . 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 … 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. Impact of water and wind on soil and control of soil erosion. Suvendu Das, Gil Won Kim, Hyun Young Hwang, P. Verma, P. Kim; Environmental Science, Medicine ; Front. Unfortunately, few studies have focused specifically on understanding the changes in soil microbial community and function under slag fertilizer amendment in cropping systems. Front. At the system level, soil microorganisms play an integral role in virtually all ecosystem processes. Elements 4, 333–337. A major challenge of the Sustainable Development Goals linked to Agriculture, Food Security, and Nutrition, under the current global crop production paradigm, is that increasing crop yields often have negative environmental impacts. Agronomy 8, 1–17. This study examined the effects of applying . This undermines food security by making crops risky and unsafe for consumption". 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). You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Besides silicate fertilizer, lime fertilizer has been widely used in acidic soil to neutralize the soil, which helps plants to protect themselves against soil pathogens. 171, 146–156. Mineral carbonation of CO2 (mineral CO2 sequestration) occurs spontaneously on geological time scales and has a high potential for CO2 sequestration (Oelkers et al., 2008). 196, 752–762. Key Laboratory of Plant‐Soil Interactions, Ministry of Education, Center for Resources, Environment and Food Security, China Agricultural University, Beijing, 100193 PR China. Soils 48, 435–442. ole in safeguarding food security. Soil Carbon Sequestration and Global Food Security. Wang et al. Correspondence There is a growing interest to reveal the underlying mechanisms of slag-microbe interactions and the contribution of soil biota to ecosystem functioning. Crops sold on markets ('cash crops') are an integral part of strategies to improve food security at farm household level in developing countries. Silicate fertilization in no-tillage rice farming for mitigation of methane emission and increasing rice productivity. Wang et al. A condition in which people have access to sufficient, safe, and nutritious food that meets their dietary needs for an active and healthy life. Soil Sci. 13 Hiltunen, R., and Hiltunen, A. Soil amendment that reduces methanogen abundance and activity, and/or increases methanotroph abundance and activity could be effective to mitigate CH4 emissions from the soil. Pollut. Next-generation sequencing technologies for environmental DNA research. Identification and elucidation of functional roles of keystone soil microbes that sustain plant health and productivity under slag fertilization could provide a technological breakthrough for a sustainable use of slag in agricultural productivity. (2018). 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). The increase of slag recovery and use in different fields of application, such as agriculture, is an imperative way for sustainable development (Ito, 2015). 8:1615. doi: 10.3389/fmicb.2017.01615, Branca, T. A., and Colla, V. (2012). Cropping With Slag to Address Soil, Environment, and Food Security. Intensive agricultural production often impacts the soil microbiome at a cost to productivity, sustainability and the environment. It is therefore urgent to develop and adopt optimal soil-improving cropping systems (SICS) that can allow us to decouple these system parameters. Sustainable agriculture using blast furnace and steel slags as liming agents, European Commission. 29, 2759–2764. Lastly, we discuss environmental concerns about the use of slag in agriculture and the future perspectives. "Soil acts as a filter for contaminants. To know the potential of these heavy metals under the changing environmental conditions, sequential extraction has attained much attention to examine their fate and behavior in contaminated soils (Cappuyns et al. The technique is based on amendments to change the soil physicochemical properties through adsorption, precipitation, ion-exchange techniques, redox potential technology, and pH control technology that change the existing forms and speciation of heavy metals/metalloids and thus, reduce their toxicity (Mosa et al., 2016). Soil management. Intensification and concentrating food production in the most productive regions may appear the most efficient way to use the land. Front. Unlike CH4 emissions, the slag fertilizer effects on N2O emissions from rice cropping systems are contradictory. Huang, B., Yu, K., and Gambrell, R. P. (2009). ... Food Security. The editor and reviewers' affiliations are the latest provided on their Loop research profiles and may not reflect their situation at the time of review. doi: 10.1016/j.apgeochem.2014.04.009, Salek, S. S., Kleerebezem, R., Jonkers, H. M., Witkamp, G., and van Loosdrecht, M. C. M. (2013). 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. D. Achilias (InTech). 164, 73–80. productivity and minimizing greenhouse gas emissions from paddy fields in this . Several studies reveal that metal contamination in soil and metal uptake by plants are not adversely affected by short-term slag fertilizer amendment in cropping systems (Ali et al., 2008, Gwon et al., 2018). Reduce the impact of droughts or floods. (2017). Field Crops Res. Complete residue removal for fodder and fuel is a norm in south Asia and Africa. The shift in soil microbial community and activities in response to slag fertilizer amendment may depend on the type of slag fertilizer (e.g., silicate fertilizer, lime fertilizer, slag phosphate fertilizer, and iron matter of special fertilizer), which modify soil properties and soil microbial habitats. doi: 10.3390/agronomy8080135, Wang, W., Sardan, J., Lai, D., Wang, C., Zeng, C., Tong, C., et al. The entry of heavy metals/metalloids into the food chain is a critical issue of current public health (Chand et al., 2015). 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). effective strategy to achieve food security in the areas of the world where it is most needed. (2012). “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. doi: 10.1016/j.wasman.2009.05.018, Ali, M. A., Lee, C. H., Lee, Y. Moreover, the adequate Si supply through slag silicate fertilizer amendment causes competitive inhibition of As(III) uptake by crop plants (Meharg and Meharg, 2015). Soil health, mediated by SOC dynamics, is a strong determinant of global food and nutritional security. 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). (2015) suggested that the silicate fertilization is not significantly effective in improving the rice yield. Steelmaking slag for fertilizer usage. Adv. 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. 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.