Strategies for reducing Cd concentration in paddy soil for rice safety

NaziaTahir,; Ullah, Aman; Tahir, Adnan; Rashid, Haroon; Rehman, Talmiz ur; Danish, Subhan; Hussain, Babar; Akça, Hanife

doi:10.1016/j.jclepro.2021.128116

Cited by 35 publications

(15 citation statements)

References 251 publications

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“…The elemental composition of biochar determines the type and quantity of surface functional groups of biochar; for instance, a higher O content of biochar leads to more abundant functional groups (such as −COOH), which can promote the chemical adsorption of Cd on biochar. Nevertheless, our SHAP analysis suggests that these variables of elemental compositions are poorly correlated to η-Cd (Figures f and S5b–d), implying that the key factors determining Cd immobilization may be not dominated by physicochemical processes …”

Section: Resultsmentioning

confidence: 92%

Multitask Deep Learning Enabling a Synergy for Cadmium and Methane Mitigation with Biochar Amendments in Paddy Soils

Yin,

Zhang,

et al. 2023

Environ. Sci. Technol.

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Biochar has demonstrated significant promise in addressing heavy metal contamination and methane (CH 4 ) emissions in paddy soils; however, achieving a synergy between these two goals is challenging due to various variables, including the characteristics of biochar and soil properties that influence biochar's performance. Here, we successfully developed an interpretable multitask deep learning (MTDL) model by employing a tensor tracking paradigm to facilitate parameter sharing between two separate data sets, enabling a synergy between Cd and CH 4 mitigation with biochar amendments. The characteristics of biochar contribute similar weightings of 67.9% and 62.5% to Cd and CH 4 mitigation, respectively, but their relative importance in determining biochar's performance varies significantly. Notably, this MTDL model excels in custom-tailoring biochar to synergistically mitigate Cd and CH 4 in paddy soils across a wide geographic range, surpassing traditional machine learning models. Our findings deepen our understanding of the interactive effects of Cd and CH 4 mitigation with biochar amendments in paddy soils, and they also potentially extend the application of artificial intelligence in sustainable environmental remediation, especially when dealing with multiple objectives.

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Section: Resultsmentioning

confidence: 92%

Multitask Deep Learning Enabling a Synergy for Cadmium and Methane Mitigation with Biochar Amendments in Paddy Soils

Yin,

Zhang,

et al. 2023

Environ. Sci. Technol.

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“…Pesticides and phosphate chemical fertilizers that had previously been used for conducting numerous tests on the same experimental feld could be the most likely sources of the Cd contamination. Cd can enter agricultural soil through various pathways which include application of agrochemicals (synthetic phosphate fertilizers and pesticides) [49,50] and contaminated animal manure [50].…”

Section: Resultsmentioning

confidence: 99%

Effects of Bio-Slurry and Chemical Fertilizer Application on Soil Properties and Food Safety of Tomato (Solanum lycopersicum Mill.)

Lolamo

Senbeta

Keneni

et al. 2023

Applied and Environmental Soil Science

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This study evaluated the effects of bio-slurry (BS) and chemical fertilizer (CF) application on soil properties and food safety of tomato (Solanum lycopersicum Mill.). A field experiment consisting of 100% BS (5 ton BS ha−1), 100% CF (90 kg N·ha−1 + 30 kg P·ha−1 + 13 kg S·ha−1), and control was conducted. Soil samples from all the treatments were collected for their physico-chemical characteristics. The level of ten heavy metals in experimental soil and tomato fruit samples was also determined. Compared to CF and control, the application of BS improved soil physico-chemical characteristics. The BC significantly reduced the mean concentrations of Cd and Mn in the tomato fruit samples. The mean concentration of Ni (18.24 ± 0.61, 23.9 ± 0.3, and 9.66 ± 1.2 mg kg−1) and Mn (15.4 ± 2.4, 38 ± 3.3 and 21.8 ± 0.99 mg kg−1) in tomato fruit samples of BS-treated, CF-treated, and control soil, respectively, was above the safety limit set by the Food and Agriculture Organization/World Health Organization for human consumption. Similarly, the mean concentration of Cd (7.98 ± 0.72 and 3.29 ± 0.37 mg kg−1) in tomato fruit samples of CF-treated and control soil was above the safety limit. From this perspective, the consumption of these tomato fruits could be unsafe for human health with respect to Ni, Mn, and Cd toxicities. The application of BS could remediate the Cd toxicities, yet other scenarios of phytoremediation would be praiseworthy to address Ni, Cd, and Ni toxicities.

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“…Phosphate fertilisers, especially superphosphate, are the main source of Cd in rice paddies, and Cd concentrations of 2.3 to 46 mg L −1 in triple superphosphate have been reported. The application of organic manure which contains phosphates could be the reason for having reduced Cd content in traditional rice varieties (Tahir et al ., 2021).…”

Section: Resultsmentioning

confidence: 99%

Comparison of nutritional and trace element concentrations in some Sri Lankan traditional rice varieties

Kodikara

Vidanarachchi

Nissanka

et al. 2023

Int J of Food Sci Tech

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SummaryRecently, traditional rice cultivars have become more popular than new, enhanced rice varieties, with the main focus being on their health benefits. Few rice cultivars have been thoroughly studied to understand their nutritional and health benefits. Inductively coupled plasma atomic emission/mass spectroscopy methods were used to determine the concentrations of 24 key nutrients and trace elements in 104 traditional rice types (Oryza sativa L.) grown in Sri Lanka. When compared to the Codex Alimentarius provisional tolerable daily intake for 24 different elements, the concentrations of toxic elements such as As, Cd, Pb, and Cr were significantly lower (p<0.05), and most of the nutritional elemental concentrations were substantially higher (p<0.05) in evaluated traditional rice varieties. Furthermore, Pb, Bi, B, K, Mg, S, Zn, and Fe concentrations among traditional rice varieties were not substantially different (p>0.05). Notably, several traditional rice varieties (i.e. Rathu Heenati, Pragathi Wee, Weda Heenati, etc.) contained significantly high levels of selenium (≈250 μg L‐1 DM, p<0.05), an important trace element that is deficient in the diets of one billion people globally.

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Strategies for reducing Cd concentration in paddy soil for rice safety

Cited by 35 publications

References 251 publications

Multitask Deep Learning Enabling a Synergy for Cadmium and Methane Mitigation with Biochar Amendments in Paddy Soils

Multitask Deep Learning Enabling a Synergy for Cadmium and Methane Mitigation with Biochar Amendments in Paddy Soils

Effects of Bio-Slurry and Chemical Fertilizer Application on Soil Properties and Food Safety of Tomato (Solanum lycopersicum Mill.)

Comparison of nutritional and trace element concentrations in some Sri Lankan traditional rice varieties

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