Phytoextractability of Cd from Soil by Some Oilseed Species as Affected by Sewage Sludge and Farmyard Manure

Indoria, A.K.; Poonia, S. R.; Sharma, K. L.

doi:10.1080/00103624.2013.847451

Cited by 11 publications

(6 citation statements)

References 25 publications

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“…Many studies have indicated that manures and their extracts including CME and PME solubilize heavy metals leading to increase the heavy metals in the sol-exch and available forms (de la Fuente et al 2011;Indoria et al 2013;Zhao et al 2014). However, the solubilizing effects of CME and PME were less than that of EDTA in the current study which was also supported by our complementary studies Safari Sinegani 2013, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The alternative chelates are required to increase the availability of heavy metals in soils to enhance EK efficiency with less negative effects on soil microbial properties. Manures have been frequently reported to increase the availability of heavy metals in soil (Almås et al 1999;de la Fuente et al 2011;Indoria et al 2013;Safari Sinegani et al 2016;Safari Singani and Ahmadi 2012;Wu et al 2012). Manures were also reported to improve soil microbial properties through increasing the organic substrate and soil physiochemical conditions (Elzobair et al 2016;Pu et al 2017;Usman et al 2013;Zhang et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Application of manures to mitigate the harmful effects of electrokinetic remediation of heavy metals on soil microbial properties in polluted soils

Tahmasbian

Sinegani

Nguyen

et al. 2017

Environ Sci Pollut Res

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Ethylenediaminetetraacetic acid (EDTA) used with electrokinetic (EK) to remediate heavy metal-polluted soils is a toxic chelate for soil microorganisms. Therefore, this study aimed to evaluate the effects of alternative organic chelates to EDTA on improving the microbial properties of a heavy metal-polluted soil subjected to EK. Cow manure extract (CME), poultry manure extract (PME) and EDTA were applied to a lead (Pb) and zinc (Zn)-polluted calcareous soil which were subjected to two electric intensities (1.1 and 3.3 v/cm). Soil carbon pools, microbial activity, microbial abundance (e.g., fungal, actinomycetes and bacterial abundances) and diethylenetriaminepentaacetic acid (DTPA)-extractable Pb and Zn (available forms) were assessed in both cathodic and anodic soils. Applying the EK to soil decreased all the microbial variables in the cathodic and anodic soils in the absence or presence of chelates. Both CME and PME applied with two electric intensities decreased the negative effect of EK on soil microbial variables. The lowest values of soil microbial variables were observed when EK was combined with EDTA. The following order was observed in values of soil microbial variables after treating with EK and chelates: EK + CME or EK + PME > EK > EK + EDTA. The CME and PME could increase the concentrations of available Pb and Zn, although the increase was less than that of EDTA. Overall, despite increasing soil available Pb and Zn, the combination of EK with manures (CME or PME) mitigated the negative effects of using EK on soil microbial properties. This study suggested that the synthetic chelates such as EDTA could be replaced with manures to alleviate the environmental risks of EK application.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of manures to mitigate the harmful effects of electrokinetic remediation of heavy metals on soil microbial properties in polluted soils

Tahmasbian

Sinegani

Nguyen

et al. 2017

Environ Sci Pollut Res

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“…Results obtained by Indoria et al (2013) indicated that amendment of sludge to soil decreased the proportions of heavy metal in exchangeable form and increased the proportions of organicbound form, meaning that the introduction of sludge loosened the restriction of the transfer of heavy metals to plants to be exerted. Mohamed et al (2010) found that amendment of sludge significantly decreased the concentrations of exchangeable Cd and Cu but increased the amounts in the organic-bound and precipitate forms.…”

Section: Organic Matter Plays Crucial Role In Availability Of Heavy Mmentioning

confidence: 96%

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Liu

2016

Waste Management

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a b s t r a c tRecycling sludge as a soil amendment has both positive and negative effects because of its enrichment in both nutrients and contaminants. So far, the negative effect has to be extensively investigated that the severities of different types of contaminants also remain unclear. The environmental behavior and risk of organic contaminant and pharmaceuticals, heavy metal and salt as well as pathogenic microorganisms brought by sludge amendment are summarized and discussed here. Organic contaminants and pharmaceuticals are typically found at low concentrations in sludge, the risks from sludge-amended soil decrease over time owing to its biodegradability. On the other hand, application of sludge generally increases soil salinity, which may cause physiological damage to plants grown in sludge-amended soil. In some extent, this negative effect can be alleviated by means of dilution; however, greater attention should be paid to long term increasing possible risk of eutrophication. Heavy metal (particularly of mobile heavy metals, such as Cd) with high concentrations in sludge and soil receiving considerable sludge can cause its incremental abundance in soil and crop contamination, further posing risks to humans, but most cases showed that there remained not excessive in heavy metal caused by sludge amendment. It is worth noting that increasing soil organic matter content may reduce transfer of heavy metal from soil to crops, but not restrict its uptake by crops at all. Combined literature together, it is summarized that heavy metal becomes a relatively severe bottleneck in recycling of sludge as soil amendment due to its nonbiodegradability and potential damage to health by adventuring contamination from agricultural products. Particular attention should therefore be paid to long term monitoring the change of heavy metals concentration in sludge amended soil.

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“…Pages et al, also found that changing of metals to non-toxic form, metals complexation and activation of efflux pumps are the major tolerance mechanisms induced by bacteria against metal toxicity [41]. Farmyard manure can improve the productivity of metal polluted soils by improving soil properties [42], metal complexation and precipitation [43], changing metal form [44] and increasing the availability of plant nutrients [45].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Different Amendments for the Mitigation of Cadmium Toxicity in Sunflower (Helianthus annuus L.)

Ltd¹

2019

JSPB

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Mitigation of metal toxicity by the use of different amendments may be an important strategy for improving the plant growth and yield in metal polluted soils. Present study aimed to evaluate the efficiency of different amendments including Phosphate Rock (PR), Silicon (Si), Farmyard Manure (FYM) and Bacterial Inoculation (BI) either individually or integratedly for the detoxification of Cadmium (Cd) in sunflower (Helianthus annuus L.). Experimental plan consisted of three Cd levels (control, 20 and 40 mg kg -1 ), two PR levels (control and 5 g kg -1 ), two Si levels (control and 100 mg Si kg -1 as sodium silicate), two FYM levels (control and 5% w/w of soil), two BI levels (non-inoculated and inoculated) and integrated use of PR+Si+FYM+BI. Results revealed that Cd concentration increased by 14.3 and 16.5 times in roots, 12.0 and 21.6 times in stems, 17.0 and 45.0 times in upper leaves while 21.0 and 34.0 times in lower leaves, and 6.6 and 11.0 times in achenes at Cd-1 and Cd-2, respectively compared with control, with the subsequent reduction in plant growth, yield and physiological characteristics of sunflower. All the four amendments were effective to mitigate the deleterious effects of Cd on sunflower growth, yield and physiological behavior in the order of PR+Si+FYM+BI > Si > BI > PR > FYM. Integrated use of PR+Si+FYM+BI reduced Cd concentration by 77.1 and 83.3% in roots, 76.0 and 82.1% in stems, and 85.4 and 85.9% in achenes, while reduced malondialdehyde by 69.7 and 67.4%, with a corresponding improvement in chlorophyll 51.0 and 79.4%, photosynthetic rate 30.5 and 79.4% while achene yield 65.8 and 76.7% at Cd-1 and Cd-2, respectively compared with respective Cd treatments without amendments. In conclusion, integrated use of different organic and inorganic amendments could be an important strategy to mitigate Cd toxicity in sunflower.

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Phytoextractability of Cd from Soil by Some Oilseed Species as Affected by Sewage Sludge and Farmyard Manure

Cited by 11 publications

References 25 publications

Application of manures to mitigate the harmful effects of electrokinetic remediation of heavy metals on soil microbial properties in polluted soils

Application of manures to mitigate the harmful effects of electrokinetic remediation of heavy metals on soil microbial properties in polluted soils

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Efficiency of Different Amendments for the Mitigation of Cadmium Toxicity in Sunflower (Helianthus annuus L.)

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