Journal article
Impact of organic and inorganic amendments on arsenic accumulation by rice genotypes under paddy soil conditions: A pilot-scale investigation to assess health risk
Journal of Hazardous Materials, Vol.420, pp.1-10
15/10/2021
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Abstract
In this study, we investigated the distinct effects of organic (farmyard manure (FYM), cow dung (CD), biogas slurry (BGS), sugarcane bagasse (SCB)) and inorganic (gypsum and lignite) amendments on arsenic (As) accumulation by two rice genotypes, Kainat (fine) and Basmati-385 (coarse), under As stress. Results showed that shoot As concentration was ~2-time greater in Kainat compared to Basmati-385 (3.1–28 vs. 1.7–16 mg kg−1 DW, respectively), with the minimum shoot As content observed with CD and SCB. In contrast to gypsum and lignite, grain As concentration was significantly reduced with CD and SCB for Kainat (0.29 and 0.24 mg kg−1 DW) and Basmati-385 (0.04 and 0.09 mg kg−1 DW). Data indicated that the CD and SCB also improved chlorophyll a and b contents, reduced lipid peroxidation and hydrogen peroxide production in both rice genotypes. Significantly, the CD and SCB decreased grain As concentration below the FAO safe As limit in rice grain (0.2 mg kg−1 DW), especially in coarse rice genotype (Basmati-385), resulting in negligible As-induced human health risk. This study highlights the significance of amendments and rice genotypes controlling As accumulation in rice grain, which should be considered prior to As remediation program of paddy soils for limiting exposure of humans to As via rice grain.
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•Fine (Kainat) and coarse (Bas-385) rice genotypes showed distinct arsenic (As) accumulation potential.•Grain As content was observed minimum with cow dung and sugarcane bagasse.•Rice growth and physiological attributes improved significantly with cow dung.•Cow dung reduced grain As below FAO limit, especially in Bas-385 (coarse).
Details
- Title
- Impact of organic and inorganic amendments on arsenic accumulation by rice genotypes under paddy soil conditions: A pilot-scale investigation to assess health risk
- Creators
- Muhammad Mahroz Hussain - University of Agriculture FaisalabadIrshad Bibi - University of Agriculture FaisalabadNabeel Khan Niazi - University of Agriculture FaisalabadMuhammad Farrakh Nawaz - University of Agriculture FaisalabadJörg Rinklebe - University of Wuppertal
- Publication Details
- Journal of Hazardous Materials, Vol.420, pp.1-10
- Publisher
- Elsevier BV
- Grant note
- The authors are thankful to Higher Education Commission (Project Nos. 6425/Punjab/NRPU/R&D/HEC/2016 and 6396/Punjab/NRPU/ R&D/HEC/2016), Pakistan for providing financial support. Drs Nabeel Khan Niazi and Irshad Bibi are thankful to the University of Agriculture Faisalabad. Dr Irshad Bibi acknowledges the support from COMSTEQTWAS research grant 2018, Italy (18-268 RG/EAS/AS_C).
- Identifiers
- 991012951194302368
- Copyright
- © 2021 Elsevier B.V. All rights reserved.
- Academic Unit
- School of Environment, Science and Engineering; Science; Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article