Biochar impact on herbicides behavior in the soils: an approach in Brazil

Mendes, Kássio Ferreira; Almeida, Cassio de Souza; Inoue, Miriam Hiroko; Mertens, Tatiane Beatriz; Tornisielo, Valdemar Luiz

doi:10.7824/rbh.v17i1.551

Cited by 4 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained hydrolate was centrifuged at 5,000 rpm for 3 min to promote the separation between the aqueous and oily phases. With the aid of a Pasteur pipette, the (supernatant) oil was removed and stored in an amber bottle in a freezer at − 20 °C, protected from light 4,29 .…”

Section: Materials and Methods Plant Materialmentioning

confidence: 99%

See 1 more Smart Citation

Phytocytotoxicity of volatile constituents of essential oils from Sparattanthelium Mart. species (Hernandiaceae)

Dutra

Christ

Carrijo

et al. 2020

Sci Rep

View full text Add to dashboard Cite

praça-fontes 1,3* the intensive application of agrochemicals in crops has negatively impacted the environment and other organisms. The use of naturally occurring compounds may be an alternative to mitigate these effects. Plants are secondary metabolite reservoirs and may present allelopathic activity, which is potentially interesting to be used in bioherbicide formulations. In this context, the present work aimed to evaluate the phytotoxic and cytotoxic effects of essential oils extracted from leaves of Sparattanthelium botocudorum and Sparattanthelium tupiniquinorum in bioassays with the plant models Lactuca sativa L. and Sorghum bicolor L. Moench. The essential oils were applied at concentrations of 3,000, 1,500, 750, 375 and 187.5 ppm. Chemical characterization of the oils was performed, and their impact on the percentage of germinated seeds, initial development of L. sativa and S. bicolor seedlings, and changes in the mitotic cycle of meristematic cells from L. sativa roots was evaluated. The major compound of the essential oils was germacrene D, followed by bicyclogermacrene, β-elemene and germacrene A. The phytotoxicity assay showed that the essential oils of both species reduced the root and shoot growth in L. sativa and decreased the germination and shoot growth in S. bicolor. Inhibition was dependent on the tested oil concentration. In the cytotoxicity assay, a decrease in mitotic index and chromosomal and nuclear alterations were observed, which resulted from aneugenic and clastogenic action. Herbicides, which are used for weed control 1 , are among the most applied agrochemicals in crop fields. However, the use of these compounds has led to problems related to plant resistance, environmental contamination, and risks to human and animal health. Therefore, it is necessary to find alternative methods for agricultural pest control 2,3. In this context, secondary metabolites may be of particular interest, as they can be directly or indirectly used in the development of new herbicides. These compounds are produced by plants and comprise three major groups, which are found in extracts and essential oils: terpenoids, alkaloids and phenolic compounds 4,5. Essential oils play an important role in protecting the plant during the competition with other species as well as against herbivore and pest attacks, and are produced variably according to the plant's interactions with the environment 6. Essential oils are volatile products, found in all plant organs, and are obtained by extraction processes such as hydrodistillation and cold pressing, depending on plant location, quantity and characteristics required for the final product 7-9. The identification and phytochemical classification of these oils enable the investigation of biologically active substances 10-12. Known as allelochemicals, these substances can be a favorable source for the development of natural herbicides, which may contribute to reduce the environmental impact caused by commercial herbicides, and additionally serve as plant growth stimulants 13-16 .

show abstract

Section: Materials and Methods Plant Materialmentioning

confidence: 99%

“…The relative percentage of each essential oil compound was calculated by the ratio between the total area of the peaks and the total area of all constituents of the sample, obtained by GC-FID analysis. Compounds with a relative area above 1% were identified, and those over 5% were considered to be major 29 .…”

Section: Materials and Methods Plant Materialmentioning

confidence: 99%

Phytocytotoxicity of volatile constituents of essential oils from Sparattanthelium Mart. species (Hernandiaceae)

Dutra

Christ

Carrijo

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…However, OM and clay are closely related to sorption of herbicides in soil. The OM is not only the main site where bound residues are formed, but also, similar to the clay, it has a high specific surface area that can strongly retain the herbicides, so the bioavailability of the product in the soil solution is lower, resulting in lower weed control efficiency [29].…”

Section: Oxyfluofenmentioning

confidence: 99%

Sustainable Control of Galinsoga parviflora with Oxyfluorfen, Flumioxazin, and Linuron Application in Two Soils Cultivated with Garlic

Paula

Silva

et al. 2022

Sustainability

View full text Add to dashboard Cite

Herbicides applied in PRE-emergence enables sustainable weed control. The objective of this study was to evaluate the control of gallant soldier (Galinsoga parviflora) with the residual herbicides oxyfluorfen, flumioxazin, and linuron in soils cultivated with garlic from two regions of Brazil: Rio Paranaíba-MG (Oxisol) and Curitibanos-SC (Ultisol). The efficiency of the herbicides was evaluated at the following doses: oxyfluorfen (0, 3, 6, 12, 24, 48, 96, 192, 384, and 768 g a.i. ha−1), flumioxazin (0, 2, 4, 6, 8, 15, 30, 40, 60, and 120 g a.i. ha−1), and linuron (0, 30, 40, 50, 100, 200, 400, 800, 1600, and 2430 g a.i. ha−1). The degree of damage on the 7th, 14th, and 21st day after emergence (DAE) and dry matter on the 21st day after emergence (DAE) were determined to evaluate the control (C80) and the growth reduction (GR80) of 80% of the plant, respectively, compared to the treatment without herbicide. Three herbicides were effective at the control of G. parviflora, with the C80 at 21 DAE on Ultisol being 81.82, 4.59, and 141.26 g a.i. ha−1, and a GR80 of 61, 8.3, and 151.3 g a.i. ha−1 for oxyfluorfen, flumioxazin, and linuron, respectively. On the other hand, on Oxisol (lower clay content and soil organic matter), the doses were lower, with the C80 at 21 DAE at 20.85, 3.50, and 118 g a.i. ha−1, and a GR80 of 54, 4.03, and 101.23 g a.i. ha−1, respectively. This weed showed higher control under flumioxazin compared to the other herbicides in both soils. The use of low doses of residual herbicides contributes to sustainable weed control in garlic growing in the field.

show abstract

“…In addition to the straw, the use of exogenous OM in cropping systems, such as the application of biochar (coal derived from vegetal biomass), has affected the retention and dynamics of herbicides in the soil. This is due to the high OC contents, higher surface areas and more porous structures, which result in higher herbicide sorption capacities (Mesa and Spokas, 2011;Mendes et al, 2018b). Several studies have indicated higher sorption of herbicides, such as atrazine, MCPA, aminocyclopyrachlor and terbuthylazine in soils modified with biochar and bonechar (Wang et al, 2010;Martin et al, 2012;Tatarková et al, 2013;Cabrera et al, 2014).…”

Section: Organic Matter Of the Soil In Retention Of Herbicidesmentioning

confidence: 99%

Effect of Organic Matter on the Behavior and Control Effectiveness of Herbicides in Soil

et al. 2019

View full text Add to dashboard Cite

With extensive use of herbicides in agricultural areas, the risk of contamination of groundwater and surface water by these products has become a worldwide concern. Practices of application or maintenance of soil organic residues that have begun to be used in agriculture for soil nutrition have demonstrated other benefits besides nutrient supplementation, such as reduced mobility and increased soil degradation of herbicides. Because it is the final destination of herbicides, soil and its constituents, especially organic matter in tropical soils, play a prominent role in processes that encompass the dynamics of herbicide molecules. In this context, it is necessary to know the influence of the organic matter and its constituents on the behavior of the herbicides. This review discusses the main relationships of organic matter in the retention, transport, and transformation processes of herbicides in the soil, as well as the interference in the weed control effectiveness of these products. Because of this, knowing the influence of organic matter in the various processes related to the behavior of herbicides in the soil allows us to adopt more appropriate management practices regarding both weed control and remediation of contaminated areas. However, despite the wide range of information on the subject in the literature, each situation is distinct due to the wide variation in the behavioral response of the products to the different types of organic material present in the soil.

show abstract

Biochar impact on herbicides behavior in the soils: an approach in Brazil

Cited by 4 publications

References 29 publications

Phytocytotoxicity of volatile constituents of essential oils from Sparattanthelium Mart. species (Hernandiaceae)

Phytocytotoxicity of volatile constituents of essential oils from Sparattanthelium Mart. species (Hernandiaceae)

Sustainable Control of Galinsoga parviflora with Oxyfluorfen, Flumioxazin, and Linuron Application in Two Soils Cultivated with Garlic

Effect of Organic Matter on the Behavior and Control Effectiveness of Herbicides in Soil

Contact Info

Product

Resources

About