The effect of three fungicides on nitrification and ammonification in soil

Wainwright, Milton; Pugh, G.J.F.

doi:10.1016/0038-0717(73)90047-3

Cited by 73 publications

(22 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application of other fungicides to soil have also increased nitrate levels, indicating increased nitrification rates in the treated soil (Chen et al 2001;Monkiedje et al 2002;Monkiedje and Spiteller 2002). However, different levels of some fungicides in soil have been found as inhibitory to nitrification (Wainwright and Pugh 1973;Monkiedje and Spiteller 2002;Kinney et al 2005). Evidently, chemical nature of fungicides has decided of their effects on this process, albeit soil type has also been of great value (Monkiedje and Spiteller 2002).…”

Section: Nitrification and Ammonification Ratesmentioning

confidence: 97%

Microbiological characteristics of a sandy loam soil exposed to tebuconazole and λ-cyhalothrin under laboratory conditions

et al. 2006

View full text Add to dashboard Cite

Changes in microbiological properties of a sandy loam soil in response to the addition of different concentrations of fungicide tebuconazole and pyrethroid insecticide lambda-cyhalothrin were assessed under laboratory conditions. To ascertain these changes, the potentially active soil microbial biomass, concentrations of ammonium and nitrate ions, numbers of total culturable bacteria, fungi, nitrogen-fixing bacteria, nitrifying and denitrifying bacteria were determined. Substrate-induced respiration (SIR) increased with time in both control (ranged from 13.7 to 23.7 mg/O(2)/kg(-1)/dry soil/h(-1)) and pesticide treated soil portions. For both pesticides, SIR values ranged from 12-13 to 23-25 mg/O(2)/kg(-1)/dry soil/h(-1) on days 1 and 28, respectively. Also, concentrations of nitrate and ammonium ions, numbers of total culturable bacteria, denitrifying bacteria, nitrogen-fixing bacteria (for the insecticide) and fungi (for the insecticide) were either unaffected or even stimulated by the pesticide treatments. The adverse impacts of the pesticides were observed for nitrate concentrations (on days 1 or 7), numbers of nitrifying bacteria (on day 1), denitrifying bacteria (for the insecticide on days 1 and 14), nitrogen-fixing bacteria (for tebuconazole on day 1) as well as numbers of fungi in tebuconazole-treated soil (on days 1 and 14).

show abstract

Section: Nitrification and Ammonification Ratesmentioning

confidence: 97%

Microbiological characteristics of a sandy loam soil exposed to tebuconazole and λ-cyhalothrin under laboratory conditions

et al. 2006

View full text Add to dashboard Cite

show abstract

“…Agnihotri (1971) observed a reduction in nitrification in soil for 2 to 3 weeks depending on the concentration of Captan. Wainwright and Pugh (1973) also found an inhibitory effect, but only at a high concentration (more than 250#g.g 2). At low concentration (5 to 10#g) it was found to be stimulatory.…”

Section: Nitrificationmentioning

confidence: 88%

Influence of Captan on some microorganisms and microbial processes related to the nitrogen cycle

Banerjee

1987

Plant Soil

View full text Add to dashboard Cite

Captan was applied to laboratory-incubated agricultural soil and to bacterial cultures to determine its effects on total counts of soil microorganisms, nitrification, ammonification of urea and asymbiotic dinitrogen fixation.In Captan-treated soils, total count of fungi, bacteria and actinomycetes decreased significantly only at a relatively high fungicide concentration (1000/~g.g-~). Fungi and actinomycetes were more affected than bacteria.While oxidation of ammonia in an enriched, actively nitrifying culture was almost totally inhibited by Captan, ammonification of urea in incubated soil was only partly depressed. The depressing effect of Captan was more pronounced in cultures of Micrococcus than in those of Proteus.Asymbiotic dinitrogen fixation in nutrient-ammended soil was promoted during the first week and depressed on prolonged exposure to the fungicide depending on its first concentration. In autoclaved Azotobacter-inoculated soil a similar but less pronounced effect was noticed. Fixation by Azotobacter cultures was insensitive to Captan. In contrast, growth of Rhizobium phaseoli, R. leguminosarum and R. japonicum in yeast-extract-mannitol medium was adversly affected by Captan, particularly at 200 #g.ml 1.Nodulation of pea and mung bean (1 month old potted plants) grown from surface-sterilized inoculated seeds in aptan-treated soil was also significantly depressed. Both total number of nodules decreased with increasing concentration of the fungicide, but the inhibitory effect was more pronounced in the number of effective nodules.

show abstract

“…The nitrification inhibitor nitrapyrin (2-chloro-6-(trichloromethyl) pyridine) (5) has been used to increase retention of N in a pine bark medium (6). Some fungicides inhibit nitrification and include botran (2,6-dichloro, 4-nitroaniline) (7), thiram (tetramethylthiram disulfide) (8), captan (N-(trichloromethylthio)-4-cyclohexene-1,2-dicarboximide) (9,10), and etridiazole [5-ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole] (11,12).…”

Section: Introductionmentioning

confidence: 99%

Effects of Selected Soil Fungicides on Nitrification and Growth of Privet in a Pine Bark Medium

Stratton

Good

Barker

2002

Journal of Plant Nutrition

View full text Add to dashboard Cite

Nitrification inhibitors were evaluated for their capacity to retard oxidation of ammonium in a pine bark medium. Nitrapyrin, captan, etridiazole, and metalaxyl were added to a pine bark medium in amounts ranging from none to 133% of manufacturers' or research-based recommendations. Inhibition of nitrification was assessed by measurements of appearance of nitrate and disappearance of ammonium at 4-wk intervals for 12 wk. The effects of these chemicals on the growth and nitrogen (N) composition of privet (Ligustrum ibolium L.) in containers of pine bark mix were assessed. Based on retention of ammonium and suppression of nitrate accumulation, etridiazole and nitrapyrin JOURNAL OF PLANT NUTRITION, 25(1), 159-168 (2002) 159 ORDER REPRINTS were effective inhibitors, whereas captan and metalaxyl were not. Etridiazole was more effective than nitrapyrin, and the efficacy of etridiazole increased as amount of application increased. The efficacy lasted for about 4 wk with nitrapyrin or etridiazole. With the amounts of fertilization and inhibitors used, growth or total N concentration of privet was not affected by the inhibitors.

show abstract

The effect of three fungicides on nitrification and ammonification in soil

Cited by 73 publications

References 17 publications

Microbiological characteristics of a sandy loam soil exposed to tebuconazole and λ-cyhalothrin under laboratory conditions

Microbiological characteristics of a sandy loam soil exposed to tebuconazole and λ-cyhalothrin under laboratory conditions

Influence of Captan on some microorganisms and microbial processes related to the nitrogen cycle

Effects of Selected Soil Fungicides on Nitrification and Growth of Privet in a Pine Bark Medium

Contact Info

Product

Resources

About