Search for linuron residues in tributaries of the Chesapeake Bay

Zahnow, Edward W.; Riggleman, James D.

doi:10.1021/jf60231a006

Cited by 6 publications

(2 citation statements)

References 11 publications

(15 reference statements)

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“…These results mean that such used herbicides can be degraded in soil to level lower than permissible level and can be used safety for weed control on coriander without any toxic effects in seeds or soil except with linuron which exceed permissible level and was banded. These results are in agreement with those obtained by Zahnow and Riggleman (1983) mentioned that half life of linuron in the field conditions is 2 to 5 month. Hassanein et al (2014) found that there was no herbicide residues were detected for pendimethalin, butralin and metribuzin herbicides in tomato fruits and Galal et al (2019) herbicides of Stomp extra, Amex, Gesagard and Ultra afalon, in green pea seeds which were found to be below the maximum residual level.…”

Section: D:correlation Coefficients Between Weed Categories and Coriasupporting

confidence: 93%

\Effect of some Weed Control Practices on Coriander (Coriandrum sativum L.) Productivity and their Associated Weeds

Hassanein

Kenawy

Ibrahim

2020

Journal of Plant Production

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Two field experiments were carried out during 2016/2017 and 2017/2018 winter seasons at Sids Horticultural Research Farm, Egypt, to evaluate the efficacy of eleven weed control treatments on weeds and coriander productivity with monitoring chemically herbicidal residues by HPLC in both soil and coriander seeds in randomized complete block design with four replicates. The results show that coriander seed yield losses due to weed competition varied from 56.6-55.5 percent through the course of this study. Hand hoeing thrice, black polyethylene mulch, rice straw mulch and Stomp extra at 1.7 l/feddan treatments gave 91-96 percent of weed control accompanied with coriander increases seed yield varied from 200.9-230.5 percent than unweeded check. Such increases in seed yield per feddan are positively correlated with various studied yield components and negatively with various studied weed categories emphasizing the need of good weed control program in coriander crop production with less herbicide residues, which determined by HPLC in both soil and seed coriander were below than the maximum residue allowable level expect with Ultra afalon at 1.0 l/fed. in the soil. Economic evaluation, showed that seed yield of coriander is a profitable enterprise for coriander growers by using hand hoeing thrice or Stomp extra or black polyethylene mulch and rice straw mulch treatments which can be recommended as good and clean alternatives for weed control in coriander crop.

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Section: D:correlation Coefficients Between Weed Categories and Coriasupporting

confidence: 93%

\Effect of some Weed Control Practices on Coriander (Coriandrum sativum L.) Productivity and their Associated Weeds

Hassanein

Kenawy

Ibrahim

2020

Journal of Plant Production

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“…The conventional extraction method for determining diuron in water is liquid-liquid extraction using dichloromethane as the organic solvent (Bowmer and Adeney, 1978;Farrington et al, 1977;Goewie and Hogendoorn, 1987;Zahnow and Riggleman, 1980). Solid phase extraction cartridges containing C 8 or C 18 bonded-phase silica were used to isolate diuron from aqueous samples in an off-line mode (Balinova, 1993;Nielen et al, 1987;Nouri et al, 1995;Moore et al, 1995;Parrilla et al, 1993;Scott, 1993).…”

Section: Introductionmentioning

confidence: 99%

Diuron and Its Metabolites in Surface Water and Ground Water by Solid Phase Extraction and In-Vial Elution

Field

Reed

Sawyer

et al. 1997

J. Agric. Food Chem.

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A simple and rapid method was developed to determine concentrations of diuron [N‘-(3,4-dichlorophenyl)-N,N-dimethylurea] and three of its major metabolites, N‘-(3,4-dichlorophenyl)-N-methylurea (DCPMU), 3,4-dichlorophenylurea (DCPU), and 3,4-dichloroaniline (DCA), in ground water and surface water. The analytical method utilizes a 25 mm C18 Empore disk to quantitatively determine diuron and its metabolites in 100 mL water samples. All analytes are eluted by placing the disk directly into a 2 mL autosampler vial in 1.5 mL of methanol/acetonitrile (50/50) for analysis by HPLC with UV detection. Recoveries from spiked field sample matrices were 98.8 ± 1.6, 98.1 ± 4.5, 98.2 ± 3.6, and 77.8 ± 4.5% for diuron, DCPMU, DCPU, and DCA, respectively. The method precision, indicated by the relative standard deviation, was typically ±5%. The method detection and quantitation limits are 0.5 and 1 μg/L for all analytes except dichloroaniline (1.0 and 2.0 μg/L, respectively). The concentrations of diuron and its metabolites determined in surface water and ground water samples collected from a field study site are presented. Keywords: Diuron; metabolites; solid phase extraction; Empore disks; surface water; ground water

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Effects of atrazine and linuron on photosynthesis and growth of the macrophytes, Potamogeton perfoliatus L. and Myriophyllum spicatum L. in an estuarine environment

Kemp¹,

Boynton²,

Cunningham³

et al. 1985

Marine Environmental Research

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Search for linuron residues in tributaries of the Chesapeake Bay

Cited by 6 publications

References 11 publications

\Effect of some Weed Control Practices on Coriander (Coriandrum sativum L.) Productivity and their Associated Weeds

\Effect of some Weed Control Practices on Coriander (Coriandrum sativum L.) Productivity and their Associated Weeds

Diuron and Its Metabolites in Surface Water and Ground Water by Solid Phase Extraction and In-Vial Elution

Effects of atrazine and linuron on photosynthesis and growth of the macrophytes, Potamogeton perfoliatus L. and Myriophyllum spicatum L. in an estuarine environment

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