Controlled release behavior of sulfentrazone herbicide encapsulated in Ca-ALG microparticles: preparation, characterization, mathematical modeling and release tests in field trial weed control

Dourado, S.M.; Nunes, Eloiza S; Marques, Renata Pereira; Rossino, Luciana Sgarbi; Quites, Fernando Júnior; Siqueira, José R.; Moreto, Jéferson Aparecido

doi:10.1007/s10853-017-1103-9

Cited by 17 publications

(4 citation statements)

References 40 publications

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“…The use of plant species as herbicide indicators is common (Batista et al, 2018). Cucumis sativus (cucumber) is used as a bioindicator plant for atrazine and sulfentrazone residues because it is highly sensitive to these herbicides (Dourado Júnior et al, 2017;Araújo et al, 2019). The higher the concentrations of herbicides in the soil, the lower the count of live plants that explore the soil with their roots and perform photosynthetic processes.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

et al. 2023

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Trees occurring on the margins of agricultural areas can mitigate damage from residual herbicides. Rhizospheric microbial activity associated with trees is one of the main remedial capacity indicators. The objective of this study was to evaluate the rhizospheric microbiological activity in tree species subjected to the herbicides atrazine and sulfentrazone via the rhizosphere. The experiment was designed in four blocks and a 6 × 3 factorial scheme. The first factor consisted of six tree species from Brazil and the second of atrazine, sulfentrazone, and water solutions. Four herbicide applications were performed via irrigation. The total dry mass of the plants, mycorrhizal colonization, number of spores, basal respiration of the rhizospheric soil, and survival rate of bioindicator plants after phytoremediation were determined. Trichilia hirta had higher biomass when treated with atrazine and sulfentrazone. Herbicides decreased the microbial activity in Triplaris americana and did not affect the microbiological indicators of Myrsine gardneriana, Schizolobium parahyba, and Toona ciliata. Fewer bioindicator plants survived in soil with Triplaris americana and sulfentrazone. Microbiological indicators were influenced in different ways between species by the presence of herbicides in the rhizosphere.

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Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

et al. 2023

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“…In recent years, some studies have reported using nanomaterial adsorption, coating, or loading herbicide to achieve the effect of slow-release herbicides to prolong weeding. − Natural clays are gaining popularity because of their thermal stability, biocompatibility, availability, environmental friendliness, and low cost. − Halloysite nanotubes (HNTs), a natural aluminosilicate mineral, are generated by rolling-up a kaolin sheet. Its size ranges between 15 and 100 nm in the inner diameters and between 0.5 and 2 μm in length, and HNTs have been used as adsorbent materials for the controlled release of active medicines due to their biocompatibility and suitably sized tubular structure. − Most studies have used evacuation to remove air and then pack the drug into the nanotubes. − Zhong et al loaded commercial herbicide atrazine (AT) into the lumen of HNTs with the amount of 9 wt % and then added the AT-loaded nanotubes (HNTs-AT) into a poly(vinyl alcohol)/starch composite (PVA/ST) with a mass ratio of 80/20 to construct a dual drug-delivery system .…”

Section: Introductionmentioning

confidence: 99%

Glufosinate Ammonium-Loaded Halloysite Nanotubes for Slow-Release Weeding Polymer Mulch Films

Jia

Yan

Zhang

et al. 2023

ACS Appl. Nano Mater.

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Improving the performance and giving function to poly(butylene adipate-co-terephthalate) (PBAT)-based biodegradable mulch film have always been research hotspots. However, the problems of a translucent PBAT-based film, which decreases in performance over time and is easily damaged by weeds, need to be solved. In this study, 11.17 wt % of the commercial contact herbicide Glufosinate-ammonium (Glu) was loaded into the lumen of halloysite nanotubes (HNTs). The Glu-loaded HNTs (Glu@ HNTs) and other treatment groups were further incorporated into the PBAT/poly(lactic acid) (PLA) composite films by melt blending and blow molding. Results demonstrated that Glu, HNTs, and Glu@HNTs dispersed uniformly in the composite films. Remarkably, while maintaining the original tensile strength of the film, the nominal strain of transverse fracture was increased by 19.6% to 51.2%, and the least water vapor transmission was reduced by 46.7% to 68.5%. Furthermore, the composite films added with Glu@HNTs can successfully kill green bristlegrass and show a good slow-release effect, which can avoid premature release of the herbicide before the weeds grow up. Overall, the combination of inorganic nanofiller-modified PBAT/PLA film and weeding has positive significance for reducing soil pollution and helping the long-term efficient use of biodegradable mulching.

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“…Pesticides play important roles in the high food productivity and farmers’ income through the control of biological disasters. Herbicides are chemicals applied to eliminate losses of weed interference on crops, leading to substantial agronomic and economic benefits [1,2]. Diquat dibromide (DQ, Figure 1), which belongs to the category of bipyridines, is globally used as a cationic quaternary ammonium herbicide [3].…”

Section: Introductionmentioning

confidence: 99%

Sulfonate-Functionalized Mesoporous Silica Nanoparticles as Carriers for Controlled Herbicide Diquat Dibromide Release through Electrostatic Interaction

Shan

Cao

et al. 2019

IJMS

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Environmental stimuli-responsive pesticide release is desirable for enhanced efficiency and reduced side effects. In most cases, the loading and release of pesticides mainly depends on hydrophobic interactions and hydrogen bonding. Electrostatic interaction is less investigated as a weapon for achieving high loading content and controlled pesticide release. In this work, negative-charge decorated mesoporous silica nanoparticles (MSNs) were facilely fabricated by introducing sulfonate groups onto MSNs through a post-grafting method. Sulfonate-functionalized MSNs (MSN-SO3) were synthesized by conversion of epoxy group into sulfonate group using a bisulfite ion as a ring opening reagent. Diquat dibromide (DQ), one of the globally used quaternary ammonium herbicides, was efficiently loaded into these negatively charged MSN-SO3 nanoparticles. The loading content was increased to 12.73% compared to those using bare MSNs as carriers (5.31%). The release of DQ from DQ@MSN-SO3 nanoparticles was pH and ionic strength responsive, which was chiefly governed by the electrostatic interactions. Moreover, DQ@MSN-SO3 nanoparticles exhibited good herbicidal activity for the control of Datura stramonium L., and the bioactivity was affected by the ionic strength of the release medium. The strategy of cargo loading and release dependent on the electrostatic interactions could be generally used for charge-carrying pesticides using carriers possessing opposite charges to mitigate the potential negative impacts on the environment.

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Controlled release behavior of sulfentrazone herbicide encapsulated in Ca-ALG microparticles: preparation, characterization, mathematical modeling and release tests in field trial weed control

Cited by 17 publications

References 40 publications

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

Glufosinate Ammonium-Loaded Halloysite Nanotubes for Slow-Release Weeding Polymer Mulch Films

Sulfonate-Functionalized Mesoporous Silica Nanoparticles as Carriers for Controlled Herbicide Diquat Dibromide Release through Electrostatic Interaction

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