Pyroligneous acids from biomass charcoal by-product as a potential non-selective bioherbicide for organic farming: its chemical components, greenhouse phytotoxicity and field efficacy

Maliang, Huidong; Liu, Ying; Wang, Yue; Jin, Lancao; Liu, Hongbo; Chen, Anliang; Chen, Jie; Ma, Jianyi

doi:10.1007/s11356-022-23087-5

Cited by 4 publications

(4 citation statements)

References 38 publications

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“…The reason for lower herbicidal efficacy of PL compared with previous findings (Grewal et al, 2018;Hagner et al, 2020aHagner et al, , 2020bMaliang et al, 2023) is probably the difference in spraying equipment used the studies. In our previous experiments (Hagner et al, 2020a(Hagner et al, , 2020bKorkalo et al, 2022), PL was sprayed using a Potter spray tower, where high air pressure disperses spray droplets evenly on the plant surfaces (Potter, 1952).…”

Section: Discussionmentioning

confidence: 66%

“…(aspen) and birch, and diluted to the 7%–12% total acid concentrations, eliminated Brassica rapa L. seedlings as effectively as a 12.5% acetic acid product. Also, Grewal et al (2018) and Maliang et al (2023) reported PL to cause more phytotoxicity than the same dose of acetic acid. In addition to acetic acid, PL contains other acids, such as formic acid and propanoic acid (Fagernäs et al, 2012; Hagner et al, 2020b), and it has been suggested that other organic compounds of PL, including aldehydes, furans and phenols, can alter PL herbicidal activity (Aguirre et al, 2020b).…”

Section: Discussionmentioning

confidence: 98%

“…Aguirre et al (2020b) also suggested that phenols improve acid adherence to plant leaf surfaces, thus enhancing PL phytotoxicity. In addition, Maliang et al (2023) suggested that PL containing tars improved herbicidal efficacy. However, as the tar fraction usually contains PAH‐compounds, for example, that are potentially environmental contaminants, we aimed to used tar‐free PL.…”

Section: Discussionmentioning

confidence: 99%

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Impact of dose and adjuvant on herbicidal efficacy of birch‐based pyrolysis liquid

Hagner,

Ruuttunen,

Hyvönen

2023

Weed Research

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Reduction of pesticide use to benefit the environment is a topical issue in the EU. There is a call for development and more widespread use of sustainable alternative weed control measures. Pyrolysis liquid (PL), a by‐product of charcoal and biochar production, contains numerous compounds, including organic acids, alcohols, phenols and furans. PL has shown promising results when used against several broad‐leaved weeds but its effect on grassy weeds is largely untested. To provide an alternative to synthetic herbicides, PL should be effective and applicable at field scale. In this research, we initially evaluated the potential of birch (Betula sp.) based PL to control mono‐ and dicotyledonous plants under greenhouse conditions and determined if efficacy is improved by addition of an adjuvant. Second, the efficacy of PL for controlling Elymus repens (L.) Gould was compared with glyphosate and two other synthetic herbicides in a no‐tillage system under field conditions. As expected, dicotyledonous plants were more sensitive to acid‐based herbicides than monocotyledonous plants. In contrast to our expectations, the herbicidal efficacy of PL was lower than an acetic acid‐based herbicide and addition of an adjuvant did not improve efficacy. In conclusion, when used at commercially and practically realistic doses, the efficacy of PL control on monocotyledonous weeds such as E. repens is weak. More product development is needed to improve PL quality and efficacy and to establish practical and cost‐effective application levels for weed control on the field scale.

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Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

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Impact of dose and adjuvant on herbicidal efficacy of birch‐based pyrolysis liquid

Hagner,

Ruuttunen,

Hyvönen

2023

Weed Research

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“…It has complex components and is difficult to selectively transform into a single component for high-value utilization. Over the years, research on the components of bamboo vinegar has mostly focused on relative quantification [43][44][45][46][47][48][49]. Relative quantification can only explore the content relationship of various compounds in bamboo vinegar and cannot provide absolute values for specific compound content.…”

Section: Discussionmentioning

confidence: 99%

Simultaneous Quantification of Twelve Compounds from Bamboo/Wood Vinegar by Gas Chromatography-Mass Spectrometry

Wang,

Zhang,

Xun

et al. 2024

Separations

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Bamboo vinegar is a liquid biomass with a huge yield and complex chemical composition. At present, the relative quantification of bamboo vinegar has been investigated in most studies. To analyze twelve compounds from bamboo vinegar simultaneously, gas chromatography-mass spectrometry and an external standard method were used to develop an analytical method. In this method, chromatographic separations of all compounds were above 1.5. The linear range was between 0.100 and 10.000 mg/L, and the coefficient of determination (R2) was between 0.9981 and 0.9997, indicating a good linear relationship. The limit of detection (LOD) was between 0.004 and 0.780 mg/L; the limit of quantitation (LOQ) was between 0.016 and 3.120 mg/L; the relative standard deviations (RSDs) of instrument precision and method stability were less than 8%; the recovery rate was between 89.25% and 113.77%, and its RSD was between 0.44% and 5.70%. Using this method, fourteen bamboo vinegars and six wood vinegars were analyzed, and it was found that the content of propionic acid, phenol, and 2-methoxyphenol was higher in most samples. In addition, the differences in physicochemical properties between distilled bamboo vinegar and its original solution after atmospheric distillation were investigated.

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Unravelling the multifarious role of wood vinegar made from waste biomass in plant growth promotion, biotic stress tolerance, and sustainable agriculture

Kumar,

Rahman,

Bouket

et al. 2025

Journal of Analytical and Applied Pyrolysis

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Pyroligneous acids from biomass charcoal by-product as a potential non-selective bioherbicide for organic farming: its chemical components, greenhouse phytotoxicity and field efficacy

Cited by 4 publications

References 38 publications

Impact of dose and adjuvant on herbicidal efficacy of birch‐based pyrolysis liquid

Impact of dose and adjuvant on herbicidal efficacy of birch‐based pyrolysis liquid

Simultaneous Quantification of Twelve Compounds from Bamboo/Wood Vinegar by Gas Chromatography-Mass Spectrometry

Unravelling the multifarious role of wood vinegar made from waste biomass in plant growth promotion, biotic stress tolerance, and sustainable agriculture

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