Metabolism of Herbicides, Fate of 3-Amino-1,2,4-triazole in Soils

Ercegovich, C. D.; Frear, D. E. H.

doi:10.1021/jf60131a008

Cited by 20 publications

(10 citation statements)

References 1 publication

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“…Decomposition by soil microorganisms is enhanced by increasing tem perature and moisture (5,12,30,32,33,54,(60)(61)(62)67,107,Ill,119,143,145,182,214,217,230). Organic-matter content is a fairly good indicator of total biological activity, and decomposition also &eems to be increased with in creased organic matter (5,12,60,61,111,118,119,160,182,198,230) .…”

Section: Decompositionmentioning

confidence: 99%

Physical Aspects of Soil in Relation to the Action of Soil Fungicides

Goring¹

1967

Annu. Rev. Phytopathol.

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Section: Decompositionmentioning

confidence: 99%

Physical Aspects of Soil in Relation to the Action of Soil Fungicides

Goring¹

1967

Annu. Rev. Phytopathol.

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“…Several studies have been devoted to the adsorption of amitrole in soils but they were essentially focused on quantitative aspects. [10][11][12][13][14][15] The primary objective of this work is to identify the molecular mechanism(s) of Cu II -amitrole coadsorption on LS. We present new data for the ternary Cu II / amitrole/LS system.…”

Section: Introductionmentioning

confidence: 99%

Co‐Adsorption of Copper(II) and 3‐Amino‐1,2,4‐triazole at a Water–Natural Macromolecular Compound Interface: Molecular Structure from Adsorption Isotherms Combined with X‐ray Absorption Measurements

Flogeac

Aplincourt

2005

Eur J Inorg Chem

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The co-adsorption of Cu II and amitrole at a water-natural macromolecular compound interface was studied by means of batch adsorption experiments, Fourier transform infrared, and X-ray absorption spectroscopy. The binary systems, aqueous amitrole-Cu II complex, and amitrole and Cu II adsorbed on the surface of the solid were studied. The ternary system was investigated over the pH range 2-10 and at varying metal concentrations. The combination of macroscopic and molecular information shows that Cu II and amitrole interact directly at the water-solid interface to form ternary surface complexes. A two-step mechanism is proposed whereby initial formation of a Cu II -amitrole aqueous com-

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“…When amitrole decomposition could not be closely associated with soil classification, texture, base exchange capacity, or adsorption, other authors (7) attributed the variable rate of amitrole decomposition to differences in microbial populations or levels of microbial activity. Several investi gators concluded microorganisms are responsible for ami trole degradation in soil, as amitrole degradation occurred more slowly in steam sterilized soil than nonsterile soils 3 (1, 3,8,19). Riepma (22) also concluded that amitrole decomposition in soil was a microbial process when ami trole decomposition was inhibited by preliminary soil sterilization (autoclaving), but more convincingly by ad dition of biological toxicants; e.g., hydroxylamine, sodi um azide, and sodium arsenite.…”

mentioning

confidence: 99%

Chemical Versus Microbial Decomposition of Amitrole in Soil

Kaufman¹,

Plimmer²,

Kearney

et al. 1968

Weed sci.

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Degradation of 3-amino-l,2,4-triazole-5-C14 (amitrole-5-C14) in autoclaved, potassium azide, ethylene oxide, and dry-heat sterilized soil was compared with that observed in nonsterile soils by measuring evolved C14O2. Amitrole degradation occurred in azide and ethylene oxide-sterilized and nonsterile soils but not in autoclaved soils. Only slight degradation occurred in autoclaved soil re-inoculated with mixed cultures of soil microorganisms isolated from soil in which amitrole had been rapidly degraded. Addition of EDTA-Na to nonsterile and ethylene oxide sterilized soils reduced amitrole degradation. Addition of organic amendments to amitrole treated soil stimulated microbial activity but reduced amitrole degradation. Addition of specific metallic salts to certain soils increased the rate of amitrole degradation. Amitrole degradation occurred rapidly in several free radical generating chemical systems. These results and additional observations indicate that amitrole degradation, at least in three soils examined, was largely a chemical process, and that microbial involvement was only indirect.

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Metabolism of Herbicides, Fate of 3-Amino-1,2,4-triazole in Soils

Cited by 20 publications

References 1 publication

Physical Aspects of Soil in Relation to the Action of Soil Fungicides

Physical Aspects of Soil in Relation to the Action of Soil Fungicides

Co‐Adsorption of Copper(II) and 3‐Amino‐1,2,4‐triazole at a Water–Natural Macromolecular Compound Interface: Molecular Structure from Adsorption Isotherms Combined with X‐ray Absorption Measurements

Chemical Versus Microbial Decomposition of Amitrole in Soil

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