Cited by 140Silicon Effects in AgricultureHeavy metals in environmentAgricultural Science and Fertilization

Impacts of Steel-Slag-Based Silicate Fertilizer on Soil Acidity and Silicon Availability and Metals-Immobilization in a Paddy Soil

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Ning, Dongfeng, Liang, Yongchao, Liu, Zhandong, Xiao, Junfu, Duan, Aiwang·2016·PLOS ONE

Abstract

Slag-based silicate fertilizer has been widely used to improve soil silicon- availability and crop productivity. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of steel slag on soil pH, silicon availability, rice growth and metals-immobilization in paddy soil. Our results show that application of slag at a rate above higher or equal to 1 600 mg plant-available SiO2 per kg soil increased soil pH, dry weight of rice straw and grain, plant-available Si concentration and Si concentration in rice shoots compared with the control treatment. No significant accumulation of total cadmium (Cd) and lead (Pb) was noted in soil; rather, the exchangeable fraction of Cd significantly decreased. The cadmium concentrations in rice grains decreased significantly compared with the control treatment. In conclusion, application of steel slag reduced soil acidity, increased plant-availability of silicon, promoted rice growth and inhibited Cd transport to rice grain in the soil-plant system.

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Crossref · 10.1371/journal.pone.0168163

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  • These negative effects may be reversible with ERW treatments given fertilization of irrigated rice using either natural and/or artificial silicates replenishing plant available silica pools, increasing yields and soil pH, and decreasing the mobility of potentially toxic trace elements (e.g., arsenic).

    “Yet these negative effects may be reversible with ERW treatments given fertilization of irrigated rice using either natural and/or artificial silicates (e.g., recycled steel slags) replenishing plant available silica pools, increasing yields and soil pH, and decreasing the mobility of potentially toxic trace elements (e.g., arsenic) 46 .”
  • Functions are fitted to mesocosm data for three species of agricultural crops (maize, rice and soybean) and four species of mycorrhizal tree saplings.

    “Functions are fitted to mesocosm data for (a) three speies of agricultural crops (maize, rice and soybean) 46,47 , and (b) four species of mycorrhizal tree saplings 48,49 .”

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Research works printed but not linked: 7

  1. [17]http://www.worldsteel.org/media-centre/press-releases/2012/12-2012-crude-steel. Html.
  2. [18]Zhu GL. The current state and developing of comprehensive disposal of steel and iron slag. Iron Steel Scrap. 2010; 1: 12– 16. (In Chinese)
  3. [23]Ma JF, Takahashi E. Soil, fertilizer, and plant silicon research in Japan, Elsevier, Amsterdan; 2002.
  4. [33]Zhang XP. The methods of plant available silicon content in soil. Soil, 1982, 14: 185– 192. (In Chinese).
  5. [35]Dai WM, Zhang KQ, Duan BW. Rapid determination of silicon content in rice (Oryzasativa L). Chin J Rice Sci. 2005; 19: 460– 462. (In Chinese)
  6. [39]Ma TS, Feng YJ, Liang YC, Hua W, Sun B, Wang QS, Huang SH, Zhang BK. Silicon supplying power and silicon fertilizer application in areas along Yangtz River. Soil. 1994; 26: 154– 156. (In Chinese)
  7. [41]Alvarez J, Datnoff LE. The economic potential of silicon for integrated management and sustainable rice production. Crop Prot. 2001; 20: 43– 48.

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Authors
Ning, D., Liang, Y., Liu, Z., Xiao, J., & Duan, A.
Affiliations
  • Chinese Academy of Agricultural Sciences (CN)
  • Zhejiang University (CN)
Corresponding author
Ning, Dongfeng
Venue
PLOS ONE
Published
2016-12-14
Volume
11
Issue
12
Pages
e0168163
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2564815830
Cited by
135
References
48
Citations by year
2026: 14 · 2025: 12 · 2024: 17 · 2023: 13 · 2022: 15 · 2021: 14 · 2020: 28 · 2019: 9 · 2018: 10 · 2017: 3
FWCI
8.57
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • The National Natural Science Foundation of China entitled “Immobilization of heavy metals in a contaminated paddy soil using nano-slag-based silicon fertilizer and ecological assessment” (51509249)
  • The 12 th Five-year Key Programs entitled “Techniques for Agricultural Use of Steel and Iron Slag: Research and Demonstration”, (2013BAB03B02)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Silicon Effects in Agriculture
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
Keywords
steel slag, silicate fertilizer, soil acidity, soil pH, silicon availability, paddy soil, rice, cadmium immobilization, lead, heavy metal immobilization, slag utilization
MeSH terms
Cadmium, Fertilizers, Hydrogen-Ion Concentration, Lead, Metals, Oryza, Silicon Dioxide, Silicon, Soil, Soil Pollutants, Steel, Silicates, Metals, Heavy

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