Silver nanoparticles stabilized by humic substances adversely affect wheat plants and soil

Куликова, Н. А.; Volkov, Dmitry S.; Abroskin, Dmitry P.; Krepak, Alexey I.; Perminova, Irina V.

doi:10.1007/s11051-020-04788-9

Cited by 7 publications

(5 citation statements)

References 41 publications

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“…In addition, VC-AS and VC-NSP treatments involved higher stomatal conductance and photosynthesis while IAA treatment yielded the lowest values of both indi- Numerous studies suggest that several complex compounds are formed between humic materials and mineral ions during the humification process; this, in turn, increases enzyme stimulation, their impact on raising respiration intensity, photosynthesis, and nucleic acid metabolism. Additionally, quasi-hormonal activity of humic materials was also reported [63][64][65]. Asciutto et al [66] also reported increased leaf area in Impatiens walleranaas a result of 100-75% VC treatment application.…”

Section: Stomatal Conductance and Photosynthesismentioning

confidence: 94%

Effect of Different Enriched Vermicomposts, Humic Acid Extract and Indole-3-Acetic Acid Amendments on the Growth of Brassica napus

Hemati

Alikhani

Ajdanian

et al. 2022

Plants

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Humic acid (HA) is a specific and stable component of humus materials that behaves similarly to growth stimulants, esp. auxin hormones, contributing to improving growth indices and performance of plants. As a rich source of HA, vermicompost (VC) is also a plant growth stimulating bio-fertilizer that can enhance growth indices and performance in plants. The purpose of the present study is to compare the influence of VC enriched with bacterial and/or fertilizer, commercial humic acid (CHA) extract, and indole-3-acetic acid (IAA) on improving growth characteristics and performance of rapeseed under greenhouse conditions. The results showed the complete superiority of VC over the CHA and IAA (approximately 8% increase in the dry weights of root and aerial organ and nearly three times increase in seed weight). The highest values of these indices were obtained with VC enriched with Nitrogen, Sulfur, and Phosphorus, Azotobacter chroococcum and Pseudomonas fluorescens; the lowest value was obtained with VC enriched with urea. Additionally, the application of 3% VC and the control involved the highest and lowest values in all traits, respectively. The SPAD (chlorophyll index) value and stem diameter were not significantly affected by different application levels of VC. Overall, the applications of IAA and the CHA were not found to be suitable and therefore not recommended.

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Section: Stomatal Conductance and Photosynthesismentioning

confidence: 94%

Effect of Different Enriched Vermicomposts, Humic Acid Extract and Indole-3-Acetic Acid Amendments on the Growth of Brassica napus

Hemati

Alikhani

Ajdanian

et al. 2022

Plants

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show abstract

“…23 Environmental Science: Nano Critical review between NPs and soil colloids, such as clay and organic matter, and the effect of pH can modify the surface properties which will influence the bioavailability and mobility of NPs. 65 From a practical point of view, the application of NPs in agriculture through seed and foliar treatment would lead to the direct deposition of NPs on plants, increasing the likelihood of assimilation. In this scenario, ZnO NPs applied to seeds enhance germination and increase root and shoot tissue length in maize, rice, and soybean plants.…”

Section: Experimental Designmentioning

confidence: 99%

“…Additionally, the chemical interactions between NPs and soil colloids, such as clay and organic matter, and the effect of pH can modify the surface properties which will influence the bioavailability and mobility of NPs. 65…”

Section: Experimental Designmentioning

confidence: 99%

Are nanomaterials leading to more efficient agriculture? Outputs from 2009 to 2022 research metadata analysis

Santos

Montanha

Gomes

et al. 2022

Environ. Sci.: Nano

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“…Supposing that NPs will be employed as fertilizers, stimulants, or pesticides, their broadcast in the soil makes them more subject to losses. Additionally, the chemical interactions between NPs and soil colloids, such as clay and organic matter, and the effect of pH, can modify the surface properties which will influence the bioavailability and mobility of NPs 63 .…”

Section: Experimental Designmentioning

confidence: 99%

Are nanomaterials leading to more efficient agriculture? Outputs from 2009-2022 research metadata analysis.

Rodrigues¹,

Montanha²,

Gomes³

et al. 2021

agriRxiv

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Agriculture is responsible for supplying food, feed, fibres, and an increasing fraction of fuel and raw chemicals for industry. Fulfilling such demands sustainably is one of the major challenges of our time. In this metadata analysis of 10 years of published research, we offer a quantitative overview of how scientists have been addressing the effects of nanoparticles on plants, and which were the main findings. If one hand, cultivated crops (55%) and plant nutrients (52%) are mostly employed as subjects of the studies, nanoparticle concentration ranges are much above, in general, more than twice that of those supplied by fertilizers or background soil concentration. Likewise, the time span of most studies, median 49 days for plants cultivated in soil, are still short compared to crop life-cycles (90-120 days), furthermore little attention (12% of treatments) has been dispensed to soil microorganisms. It was not possible to establish correlations between effects and experimental parameters such as concentration range, soil pH, or time of exposure, which reveals an intricate relationship between these results and experimental conditions. The small fraction of field experiments (5%) is also challenging to be transposed. Finally, the study raises the question of whether nanoscience will lead to incremental yield gains by replacing current inputs by nanotechnological ones, such as the controlled-release of fertilizers and pesticides, or it will disrupt agriculture by attacking problems so far not practically addressed such as hacking plant stress and defense mechanisms, and modulation of metabolism and photosystems.

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Silver nanoparticles stabilized by humic substances adversely affect wheat plants and soil

Cited by 7 publications

References 41 publications

Effect of Different Enriched Vermicomposts, Humic Acid Extract and Indole-3-Acetic Acid Amendments on the Growth of Brassica napus

Effect of Different Enriched Vermicomposts, Humic Acid Extract and Indole-3-Acetic Acid Amendments on the Growth of Brassica napus

Are nanomaterials leading to more efficient agriculture? Outputs from 2009 to 2022 research metadata analysis

Are nanomaterials leading to more efficient agriculture? Outputs from 2009-2022 research metadata analysis.

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