Simulation and experimental analysis of the influence of herbicides on soil nitrification

Domsch, K. H.; Paul, W.

doi:10.1007/bf00403068

Cited by 36 publications

(12 citation statements)

References 26 publications

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“…The chemoautotrophic nitrifiers are generally regarded as being relatively sensitive to organic compounds, and at least one such compound (nitripyrin) is used commercially to inhibit nitrification in the soil [13]). However, many other organic contaminants, including many herbicides, have no effect on nitrification [14]. Rasche et al [15] demonstrated that ammonia oxidation to nitrite by Nitrosomonas europea in pure culture is inhibited by several chlorinated solvents due to an interaction with the ammonia monooxygenase enzyme (AMO).…”

Section: Discussionmentioning

confidence: 99%

Effect of application solvents on heterotrophic and nitrifying populations in soil microcosms

Miller

Sardo

Thompson

et al. 1997

Enviro Toxic and Chemistry

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Abstract-Agricultural practices may cause contamination of soil and ground water with a combination of organic compounds (pesticides and fuel) and nitrogen fertilizers. In coupled microcosm studies that monitored the mineralization of naphthalene and the nitrification of ammonia, it was observed that the solvent (dichloromethane) used to apply naphthalene to the soil inhibited nitrification, although there was no effect on naphthalene mineralization. Further studies were performed with a series of application solvents: methanol, acetonitrile, trichloromethane, and dichloromethane. Soil and solvent were allowed to equilibrate with ambient air for various times before capping and incubation of microcosms. Results indicated that dichloromethane equilibrated for 5 mins inhibited nitrification for at least 3 weeks relative to the control (water). Acetonitrile and trichloromethane similarly inhibited nitrification. Methanol and dichloromethane equilibrated for 60 mins also significantly delayed nitrification, although to a lesser extent. Inhibition of nitrification was not permanent, and nitrification activity was eventually restored in all systems tested. None of the solvents inhibited mineralization of the added carbon source. These results indicate that special care must be taken to ensure that applications solvents do not affect the activity of sensitive microbial populations, such as the nitrifiers, that may be part of a study.

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Section: Discussionmentioning

confidence: 99%

Effect of application solvents on heterotrophic and nitrifying populations in soil microcosms

Miller

Sardo

Thompson

et al. 1997

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

show abstract

“…Their review also deals extensively with the nitrifi cation models of McLaren and co-workers (5, SO-53), Bazin & Saunders (6, 67), Cho (22), and Paul & Domsch (26,59). Therefore, these models are not discussed here, except in relation to the insights they may give to population growth and regulation.…”

Section: Growth Of Ni Trifiersmentioning

confidence: 94%

Population Ecology of Nitrifying Bacteria

Belser¹

1979

Annu. Rev. Microbiol.

404

178

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“…Herbicides affect various soil microbial processes (Johnen, 1977;Ross, 1974) including N-mineralization (Domsch and Paul, 1974), inhibit decomposition (Pugh and Williams, 1971;Grossbard and Wingfield, 1978) and depending upon type and rate of application, can alter the biomass quantitatively and qualitatively in both the short and long-term (Anderson et al, 1981). Anderson et al (1992) concluded that, when used as directed, none of the pesticide tested should have negative or ecological unacceptable effects on C or N mineralization in soils.…”

Section: Discussionmentioning

confidence: 99%

Combined Effects of Chlorsulfuron and Bensulfuron-Methyl Herbicides on the Size of Microbial Biomass in a loamy sand soil

.¹,

Changyongk²,

Jianmingk³

et al. 2000

Pakistan J. of Biological Sciences

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A laboratory incubation experiment was conducted to examine the combined effects of chlorsulfuron and bensulfuron-methyl herbicides on the soil microbial biomass C (C mic ), N (N mic ) and their ratio in a loamy sand soil. The herbicides were added at four levels that were (C0B0) control, (C1B1) 0.01& 0.01, (C1B2) 0.01& 0.1 and (C1B3) 0.01&1.0 µg gG 1 soil of chlorsulfuron and bensulfuron-methyl, respectively. The soil was then incubated in the dark at 25±1EC. Determinations of C mic and N mic were carried out at 1, 3, 5, 7, 10, 15, 25 and 45 days after herbicide application. The results showed that combined applications of herbicides have significant effect on soil microbial biomass C and N, particularly during the first 15 days of incubation, which declined after 25 th day of incubation with C1B1 application rate. At 45 th day of incubation, the effect of herbicides decreased significantly in C1B2 and it become non-significant as compared with the control. While, C1B3 was still found to be significant as compared to the control and C1B1 but it was at par with C1B2. The results also revealed that with C1B1 treatment the biomass C/N ratio was significantly higher within first 3 days of incubation as compared with the control. But with C1B2, the ratio was significantly different within first 5 days of incubation. While with C1B3 the ratio was found significantly higher within first 25 days of incubation as compared with the control. Increasing the application rate resulted in increased inhibitory effect on the soil microbial biomass and also combined addition of herbicides caused negatively more effect than their single application.

show abstract

Simulation and experimental analysis of the influence of herbicides on soil nitrification

Cited by 36 publications

References 26 publications

Effect of application solvents on heterotrophic and nitrifying populations in soil microcosms

Effect of application solvents on heterotrophic and nitrifying populations in soil microcosms

Population Ecology of Nitrifying Bacteria

Combined Effects of Chlorsulfuron and Bensulfuron-Methyl Herbicides on the Size of Microbial Biomass in a loamy sand soil

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