Academic literature on the topic 'Biodegradation of herbicides'

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Journal articles on the topic "Biodegradation of herbicides"

1

Subba-Rao, Ravva V., Thomas H. Cromartie, and Reed A. Gray. "Methodology in Accelerated Biodegradation of Herbicides." Weed Technology 1, no. 4 (1987): 333–40. http://dx.doi.org/10.1017/s0890037x00029869.

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Accelerated biodegradation of herbicides in soils can be demonstrated in the laboratory either by treating soil samples with a herbicide under conditions favorable for microbial growth or by sampling field soils soon after herbicidal treatment. Quantitative measurement of accelerated degradation of thiocarbamates in field soils is complicated by the difficulty both of obtaining a proper untreated soil and of obtaining a representative sample by proper mixing of treated soil. Both bacteria and fungi degrade thiocarbamate herbicides, and examples of either class of organisms can be isolated by s
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2

Harvey, R. Gordon, J. H. Dekker, Richard S. Fawcett, Fred W. Roeth, and Robert G. Wilson. "Enhanced Biodegradation of Herbicides in Soil and Effects on Weed Control." Weed Technology 1, no. 4 (1987): 341–49. http://dx.doi.org/10.1017/s0890037x00029870.

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Research conducted since 1979 in the north central United States and southern Canada demonstrated that after repeated annual applications of the same thiocarbamate herbicide to the same field, control of some difficult-to-control weed species was reduced. Laboratory studies of herbicide degradation in soils from these fields indicated that these performance failures were due to more rapid or “enhanced” biodegradation of the thiocarbamate herbicides after repeated use with a shorter period during which effective herbicide levels remained in the soils. Weeds such as wild proso millet [Panicum mi
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3

Lawrence, Ernest G., Horace D. Skipper, Dewitt T. Gooden, Joseph P. Zublena, and James E. Struble. "Persistence of Carbamothioate Herbicides in Soils Pretreated with Butylate." Weed Science 38, no. 2 (1990): 194–97. http://dx.doi.org/10.1017/s0043174500056368.

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Field and laboratory studies were conducted to examine effects of prior butylate use on biodegradation of subsequent applications of butylate and four other carbamothioate herbicides. Bioassays were used to demonstrate reductions of butylate and EPTC activity in four soils preconditioned by annual butylate applications. Combining these herbicides with dietholate, an enzyme inhibitor, prolonged persistence and restored normal herbicidal activity. Expected herbicidal efficacy occurred in adjacent plots with no history of carbamothioate use. Prior applications of butylate resulted in cross-adapte
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4

Harvey, R. Gordon. "Biodegradation of Butylate, EPTC, and Extenders in Previously Treated Soils." Weed Science 38, no. 3 (1990): 237–42. http://dx.doi.org/10.1017/s0043174500056460.

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Laboratory studies were conducted to determine the ability of the extenders dietholate and SC-0058 to prevent enhanced biodegradation of EPTC and butylate applied to Wisconsin soils with different histories of carbamothioate herbicide use. Enhanced EPTC and butylate biodegradation occurred in soils previously treated with those herbicides. Enhanced biodegradation of dietholate occurred on soils previously treated with that extender plus either EPTC or butylate. Enhanced dietholate biodegradation was observed when applied alone or in combination with butylate or EPTC. Application with dietholat
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5

Mohamed, Afrah T., Adil A. El Hussein, Marmar A. El Siddig, and Awad G. Osman. "Degradation of Oxyfluorfen Herbicide by Soil Microorganisms Biodegradation of Herbicides." Biotechnology(Faisalabad) 10, no. 3 (2011): 274–79. http://dx.doi.org/10.3923/biotech.2011.274.279.

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6

Cantwell, John R., Rex A. Liebl, and Fred W. Slife. "Biodegradation Characteristics of Imazaquin and Imazethapyr." Weed Science 37, no. 6 (1989): 815–19. http://dx.doi.org/10.1017/s0043174500072891.

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The extent of14C-imazaquin and14C-imazethapyr abiotic vs. biotic degradation in soil was investigated. Degradation was measured in an in vitro system which allowed 90% recovery of applied herbicide. Triallate biodegradation is well documented and therefore used as a standard. Herbicide degradation was compared in two soils, a Cisne silt loam and a Drummer silty clay loam. Herbicide degradation in gamma-irradiated soil was compared to fresh soil. Biomass quantities were measured for the duration of the experiments.14CO2evolution, extractable parent, metabolites, and unextractable residue were m
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7

Harvey, R. Gordon, Gregory R. McNevin, John W. Albright, and Mary Ellen Kozak. "Wild Proso Millet (Panicum miliaceum) Control with Thiocarbamate Herbicides on Previously Treated Soils." Weed Science 34, no. 5 (1986): 773–80. http://dx.doi.org/10.1017/s0043174500067849.

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Efficacy of EPTC (S-ethyl dipropylcarbamothioate), butylate [S-ethyl bis(2-methylpropyl)carbamothioate], vernolate (S-propyl dipropylcarbamothioate), and cycloate (S-ethyl cyclohexylethylcarbamothioate) applied with dichlormid (N,N-diallyl-2,2-dichloroacetamide), and the former three herbicides applied with dichlormid and dietholate (O,O-diethyl-O-phenol phosphorothioate) for wild proso millet (Panicum miliaceumL. ssp.ruderale(Kitagawa) Tzevelev. # PANMI) control in corn (Zea maysL.) was evaluated in fields previously treated with EPTC + dichlormid or EPTC + dichlormid + dietholate. Cycloate +
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8

Gehrke, Vinicios Rafael, Marcus Vinicius Fipke, Luis Antonio de Avila, and Edinalvo Rabaioli Camargo. "Understanding the Opportunities to Mitigate Carryover of Imidazolinone Herbicides in Lowland Rice." Agriculture 11, no. 4 (2021): 299. http://dx.doi.org/10.3390/agriculture11040299.

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(1) Background: The Clearfield™ system (CL) is currently the primary tool for selective weedy-rice management in irrigated rice. However, herbicide persistence in the soil may cause damage to successive crops. Thus, it is necessary to understand agricultural practices that can favor the dissipation of these herbicides. The objective of this study was to analyze the factors that affect the persistence of imidazolinones and to use this information to provide management strategies to mitigate carryover in lowland rice. (2) Methods: A literature review was performed, and the publications were sele
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9

Basu, Sayantani, and Y. Vasudeva Rao. "Environmental Effects and Management Strategies of the Herbicides." International Journal of Bio-resource and Stress Management 11, no. 6 (2020): 518–35. http://dx.doi.org/10.23910/1.2020.2069d.

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India has wide range of agro-climates and soil types and highly diverse agriculture farming systems with different types of weed problems. So, herbicides are the integrated part of the general cropping systems. In general, herbicides are formulated in such a way that they degrade from the environment after completion of their intended work, but a few of them persist in the environment and cause a serious hazard to the succeeding crop and also to the surrounding environments. Hence, a proper knowledge of herbicides is important to understand the management procedure, organization and hierarchy
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10

White, Graham F. "Multiple interactions in riverine biofilms - surfactant adsorption, bacterial attachment and biodegradation." Water Science and Technology 31, no. 1 (1995): 61–70. http://dx.doi.org/10.2166/wst.1995.0015.

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Many organic pollutants, especially synthetic surfactants, adsorb onto solid surfaces in natural and engineered aquatic environments. Biofilm bacteria on such surfaces make major contributions to microbial heterotrophic activity and biodegradation of organic pollutants. This paper reviews evidence for multiple interactions between surfactants, biodegradative bacteria, and sediment-liquid interfaces. Biodegradable surfactants e.g. SDS, added to a river-water microcosm were rapidly adsorb to sediment surface and stimulated the indigenous bacteria to attach to the sediment particles. Recalcitrant
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