Herbicide Residues in Rice–Wheat Cropping System in Uttarakhand

Tandon, Shishir

doi:10.1007/978-981-13-1038-6_7

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…Soil factors like soil texture, temperature, pH, and organic carbon content influence residues, retention, and degradation rates of pesticides [22][23][24][25]. Degradation of ethofumesate has been reported in the medium silty loam soil; they found a two-stage degradation process rapid initial phase followed by a slower process [15].…”

Section: Resultsmentioning

confidence: 99%

Residue Kinetics of Ethofumesate in Texturally Diverse Soils of Sugar Beet Crop under Field Conditions

Tandon¹,

Pal²

2021

Journal of Chemistry

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Indiscriminate use of pesticides and growing awareness of environmental and health problems had led to monitoring their residues in soil and crops. Ethofumesate is one of the widely used herbicides for controlling weeds in sugar beet. Dissipation kinetics and terminal residues of ethofumesate were investigated in two diverse soils under subtropical field conditions. Ethofumesate dissipated slowly after application and follows biphasic first-order kinetics in soils. The average half-life for initial and later phases in sandy loam soil, respectively, was 14.54 and 20.42 and 51.83 and 65.21 days, while for silty clay loam, it was 10.09 and 13.00 and 71.42 and 73.10 days, respectively. Recoveries in soil, leaves, and beetroot ranged from 78.15 to 88.05, 77.01 to 88.58, and 76.25 to 84.50%, respectively. The quantitation limit for soil, roots, and leaves was 0.002 μg g−1. At harvest, no residues were detected in soils, leaves, and sugar beetroots. Residues were below the maximum residue limits in sugar beetroots and leaves as set by EU (0.2 ppm). Ethofumesate is safe from weed control and environmental aspects as it does not persist for a long duration in soils and does not appear to pose any adverse effect on human/animal health under subtropical field conditions.

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Section: Resultsmentioning

confidence: 99%

Residue Kinetics of Ethofumesate in Texturally Diverse Soils of Sugar Beet Crop under Field Conditions

Tandon¹,

Pal²

2021

Journal of Chemistry

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“…Injudicious use of pesticides pollutes environment, as they enter the biosphere through different modes after being discharged on soil surface or canopy. Only 1% of the sprayed pesticides are effective, while 99% of pesticides applied are released to non-target soils, water bodies and atmosphere, and finally absorbed by almost every organism leading to contamination of environment, residues in soil, water and food, damage to soil microorganisms including earthworms, negative effect on plant biodiversity, toxicity to human and animals, shifts in weed flora and appearance of resistance in pests species [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

The RP-HPLC method development and validation for simultaneous determination of oryzalin and ethofumesate pesticides in soil and water

Tandon¹,

Pal

2022

AChrom

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A sensitive and reliable method for simultaneous determination of oryzalin and ethofumesate residues in pantnagar soil and water was validated. The compounds were extracted by LLE with dichloromethane from water, and acetone:methanol mixture from soil followed by SPE cleanup. Detection and quantification was done by RP-HPLC using mobile phase methanol:water (70:30, v/v) at 280 nm. The developed method showed satisfactory validation results with linearity (0.99), relative standard deviations (1.55 and 1.73%), and limit of quantification (0.002 μg g−1 and 0.005 μg g−1) for ethofumesate and oryzalin, respectively. Recoveries ranged for oryzalin and ethofumesate from 79.80–90.52, 75.58–86.04% (soil) and 83.50–95.92, 82.28–94.60% (water), respectively. The method could be used for routine high-throughput detection and determination of these compounds.

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Characterization and Metabolism of Bound Residues of Three Herbicides in Soils Amended with Sugarcane Waste

et al. 2020

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Herbicide Residues in Rice–Wheat Cropping System in Uttarakhand

Cited by 7 publications

References 13 publications

Residue Kinetics of Ethofumesate in Texturally Diverse Soils of Sugar Beet Crop under Field Conditions

Residue Kinetics of Ethofumesate in Texturally Diverse Soils of Sugar Beet Crop under Field Conditions

The RP-HPLC method development and validation for simultaneous determination of oryzalin and ethofumesate pesticides in soil and water

Characterization and Metabolism of Bound Residues of Three Herbicides in Soils Amended with Sugarcane Waste

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