Residue of bensulfuron methyl in soil and rice following its pre- and post-emergence application

Janaki, P.; Nithya, C.; Kalaiyarasi, D.; Sakthivel, N.; Prabhakaram, N.K.; Chinnusamy, C.

doi:10.17221/294/2016-pse

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…It can be uptaken by weeds and translocated to target sites to inhibit the acetolactate synthase, block biosynthesis of branched-chain amino acids, and finally result in growth inhibition, chlorosis, and necrosis 3,4 . The solubility of BSM is very low (12–120 mg L −1 in water at pH 6.0–7.0 and 25 °C) 5,6 . It was reported that the herbicide was immobile to moderately mobile in soils and easy to be adsorbed by soil particles 6–8 .…”

Section: Introductionmentioning

confidence: 99%

The mechanism of bensulfuron-methyl complexation with β-cyclodextrin and 2-hydroxypropyl-β-cyclodextrin and effect on soil adsorption and bio-activity

Geng

Tian

Wang

et al. 2019

Sci Rep

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In this work, the inclusion complexes of hydrophobic herbicide bensulfuron-methyl (BSM) with β-cyclodextrin (β-CD) and (2-hydroxypropyl)-β-CD (2-HP-β-CD) were prepared and characterized. Phase solubility study showed that both β-CD and 2-HP-β-CD increased the solubility of BSM. Three-dimensional structures of the inclusion complexes were simulated by the molecular docking method. The docking results indicated that guest BSM could enter into the cavities of host CDs, folded, and centrally aligned inside the inclusion complexes. The benzene ring of the guest molecule was close to the wide rim of the host molecules; the pyrimidine ring and side chains of the guest molecule were oriented toward the narrow rim of the host molecule. The inclusion complexes were successfully prepared by the coprecipitation method. The physiochemical characterization data of 1H NMR, FT-IR, XRD, and DSC showed that the guest and host molecules were well included. BSM had lower soil adsorption and higher herbicidal activity in the complexation form with β-CD or 2-HP-β-CD than in the pure form. The present study provides an approach to develop a novel CDs-based formulation for hydrophobic herbicides.

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Section: Introductionmentioning

confidence: 99%

The mechanism of bensulfuron-methyl complexation with β-cyclodextrin and 2-hydroxypropyl-β-cyclodextrin and effect on soil adsorption and bio-activity

Geng

Tian

Wang

et al. 2019

Sci Rep

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“…Although the half lethal doses(LD 50 ) of four herbicides in rats are all over 5000 mg/kg according to the Pesticide Manual [19], the four herbicides are extensively used in paddy fields in consideration of good selectivity, high efficiency, and low toxicity. Previous studies primarily concentrated on herbicidal activity and residue levels of four herbicides in rice cropping systems [10,20,21]. The results indicated that pyrazosulfuron-ethyl, bensulfuron-methyl, acetochlor and butachlor were safe and the residues in rice were lower than the maximum residue limit (MRL) at the recommended dosage [19,20].…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies primarily concentrated on herbicidal activity and residue levels of four herbicides in rice cropping systems [10,20,21]. The results indicated that pyrazosulfuron-ethyl, bensulfuron-methyl, acetochlor and butachlor were safe and the residues in rice were lower than the maximum residue limit (MRL) at the recommended dosage [19,20]. However, weed resistance to these four herbicides increased gradually due to widespread use in paddy fields, which inevitably increased the dosage of these four paddy herbicides [22,23,24,25].…”

Section: Introductionmentioning

confidence: 99%

Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS

Qian

Zhang

et al. 2019

IJERPH

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The dissipation dynamics and residue of pyrazosulfuron-ethyl, bensulfuron-methyl, acetochlor, and butachlor in paddy fields at Good Agricultural Practices (GAP) condition were carefully investigated in this study. The four herbicides’ residues were determined based on a quick, easy, cheap, rugged, safe (QuEChERS) method coupled with HPLC-MS/MS and GC-MS. The limit of detection (LOD) for pyrazosulfuron-ethyl, bensulfuron-methyl, acetochlor, and butachlor in all matrices ranged from 0.04–1.0 ng. The limit of quantification (LOQ) of the four herbicides ranged from 0.01–0.1 mg/kg. Moreover, the average recoveries of the four herbicides ranged from 78.9–108% with relative standard deviations (RSDs) less than 15% at three different fortified levels for different matrices. The dissipation results indicated that the average half-lives (t1/2) of the four herbicides in soil were in the range of 3.5–17.8 days, and more than 95% of the four herbicides dissipated within 5 days in water. Furthermore, the final residues of the four herbicides were all below the LOQ at harvest time. Such results highlight the dissipation dynamics and residue of the four herbicides in a rice cropping system and contribute to risk assessment as well as scientific guidance on the proper and safe application of herbicides in paddy fields.

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“…Glyphosate was extracted and analysed, as detailed by Brindhavani et al (2020), using HPLC. The extraction and detection method was validated by performing recovery studies before analysing unknown samples, as described by Janaki et al (2016) for bensulfuron methyl.…”

Section: Methodsmentioning

confidence: 99%

Herbicides and nutrients interaction on earthworm activity in tomato cultivated soil and toxicity appraisal

Yerra,

Janaki,

Ramalakshmi

et al. 2023

PLANT SOIL ENVIRON

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The tomato (Solanum lycopersicum L.) is the second most important vegetable grown in the world. In its cultivation, herbicides such as glyphosate, pendimethalin, and metribuzin are frequently used to control various weeds. On the other hand, fertilisers are widely used to promote the growth and production of tomatoes. Therefore, the simultaneous application of two major agro-inputs, namely pesticides and fertilisers, may have either antagonistic or synergistic interactions between them and accordingly affect the non-target organisms such as earthworms in the soil. Several reports have been published on the effects of herbicides on earthworm activity (Stepic et al. 2013) caused by single or sequential applications to field crops such as cereals, legumes, and oilseeds. However, the influence of different herbicides with different nutrient fertiliser application practices on earthworm activity in vegetable-cultivated soils is lacking or very little published.Earthworms are the most important organisms disturbed by agrochemicals, and these bioindicators help detect the toxic effects of various chemi-

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Residue of bensulfuron methyl in soil and rice following its pre- and post-emergence application

Cited by 9 publications

References 16 publications

The mechanism of bensulfuron-methyl complexation with β-cyclodextrin and 2-hydroxypropyl-β-cyclodextrin and effect on soil adsorption and bio-activity

The mechanism of bensulfuron-methyl complexation with β-cyclodextrin and 2-hydroxypropyl-β-cyclodextrin and effect on soil adsorption and bio-activity

Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS

Herbicides and nutrients interaction on earthworm activity in tomato cultivated soil and toxicity appraisal

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