Effect of application rate of a nitrification inhibitor, dicyandiamide (DCD), on nitrification rate, and ammonia-oxidizing bacteria and archaea growth in a grazed pasture soil: An incubation study

Guo, Yan J.; Di, Hong J.; Cameron, K. C.; Li, Bowen

doi:10.1007/s11368-013-0843-7

Cited by 32 publications

(15 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2). Higher soil NH 4 + availability under eO 3 likely explain increased NEA (Guo et al 2014). The increased soil NH 4 + likely occurred as a result of lower N uptake by soil microorganisms, resulting in lower MBN in the rhizosphere of both wheat cultivars (Fig.…”

Section: Discussionmentioning

confidence: 99%

Elevated ozone increases nitrifying and denitrifying enzyme activities in the rhizosphere of wheat after 5 years of fumigation

Chen

Zhang

et al. 2015

Plant Soil

View full text Add to dashboard Cite

Backgrounds and aims Nitrogen (N) cycling in agroecosystems is likely to change under elevated O 3 (eO 3 ) as a result of changes in plant material inputs to soils. The objective of this study was to understand how eO 3 could change key N cycling processes in soils. Methods Rhizosphere soils were collected from sensitive and tolerant wheat cultivars following a 5-year fumigation of O 3 at 60 ppb (eO 3 ) and at ambient 40 ppb (aO 3 ) in a free-air ozone enrichment platform. Soil nitrifying and denitrifying enzyme activity (NEA and DEA), abundance of ammonia monooxygenase(amoA) and denitrifying bacteria genes(nirS and nirK), and other related properties were quantified. ResultsSoil NEA, DEA, NH 4 + and NO 3 − were higher under eO 3 than under aO 3 , whereas microbial biomass N (MBN) decreased under eO 3 , especially with the O 3 -sensitive cultivar. No clear eO 3 effect was observed on the abundance of amoA and nirS and nirK. Grain yield and shoot to root ratios decreased as a result of eO 3 in the O 3 -sensitive cultivar.Conclusions eO 3 stimulates soil N availability, but suppresses grain yields after 5 years, especially for the O 3 -sensitive cultivar. Adaptive strategies should focus more on cultivar selection to retain N in soil and to assure the resilience of crop production in the future.

show abstract

Section: Discussionmentioning

confidence: 99%

Elevated ozone increases nitrifying and denitrifying enzyme activities in the rhizosphere of wheat after 5 years of fumigation

Chen

Zhang

et al. 2015

Plant Soil

View full text Add to dashboard Cite

show abstract

“…In these bacteria, cobalt is the activator of the urease enzyme, which is the catalyst in the urea decomposition reaction (Witte et al, 2002). Apart from carbon dioxide and water, the main product of this reaction is ammonia, which is also the final product of ammonification and enables the initiation of nitrification, where this compound will be oxidized to nitrites and nitrates (Guo et al, 2014). Nitrification is one of the major processes characterizing soil quality.…”

Section: Effect Of Cobalt On Microorganismsmentioning

confidence: 99%

Effect of Cobalt on the Environment and Living Organisms - A Review

Kosiorek¹

2019

Appl. Ecol. Env. Res.

View full text Add to dashboard Cite

This literature review presents a summary of papers related to the determination of the sources of cobalt compound presence in the environment and the resulting pollution of water and land. Their properties, determining their toxicity to living organisms, have been specified, with sections devoted to their effect on microorganisms and plants. The influence (negative and positive) of cobalt on living organisms in water and soil environments, including the biological balance of the soil (the number of microorganisms, enzymatic activity) and plant growth and development, and the possibilities of their use in the phyto-and bioremediation of areas polluted with cobalt have been described. Particular emphasis has been placed on the presentation of the effect of cobalt on animals and man.

show abstract

“…This is significant because nitrate is far more mobile within soils than ammonium, and is thus prone to leaching into groundwaters (Spalding et al 1993;Aislabie et al 2013). A nitrification inhibitor has been applied to NZ soils in an effort to minimise this nitrate leaching (Guo et al 2014). In grazed grasslands, the majority of ingested nitrogen can be returned to the soil via urine from grazing livestock, with levels of nitrogen under a dairy cow urine patch reaching as high as 1000 kg per hectare (Di et al 2009).…”

Section: Microbial Ecology Of Terrestrial Ecosystemsmentioning

confidence: 99%

“…The importance of urine as a nitrogen input, potentially affecting microbial communities in soil, is reflected in the large numbers of publications on this topic from NZ researchers (e.g. Orwin et al 2010;Bertram et al 2012;Dai et al 2013;Guo et al 2014). A second major pathway for nitrogen loss from pastoral land relates to the release of nitrous oxide (N 2 O), a potent greenhouse gas with a global warming potential c. 300 times that of CO 2 (Solomon et al 2007).…”

Section: Microbial Ecology Of Terrestrial Ecosystemsmentioning

confidence: 99%

Microbial ecology research in New Zealand

Stott¹,

Taylor²

2016

NZ J Ecol

View full text Add to dashboard Cite

There are very few, if any, ecosystems that are not profoundly influenced by the activity of microbial communities. Microorganisms, encompassing domains Bacteria and Archaea as well as microscopic members of the Eukarya such as protozoa, yeasts and many other fungi, are tremendously abundant and contribute significantly to the major biogeochemical processes. In the last decade, technological advances in DNA sequencing have afforded ecologists the ability to study microbial communities at hitherto unseen resolution, with the capacity to address increasingly complex ecological questions. Here we review a selection of microbial ecology research being undertaken in New Zealand and Antarctica, from animal-and plant-hosted ecosystems, freshwater and marine habitats, and agricultural and geothermal environments. We have highlighted the broad range of high-quality and diverse microbial ecology research being conducted by New Zealand researchers and observe that much of this work underpins the greater biosecurity, ecosystem services, health and conservation efforts being undertaken in this country and globally. We conclude the review by offering some ideas for future directions in microbial ecology and, in particular, argue the importance of integrating microbiology with general ecological research.

show abstract

Effect of application rate of a nitrification inhibitor, dicyandiamide (DCD), on nitrification rate, and ammonia-oxidizing bacteria and archaea growth in a grazed pasture soil: An incubation study

Cited by 32 publications

References 36 publications

Elevated ozone increases nitrifying and denitrifying enzyme activities in the rhizosphere of wheat after 5 years of fumigation

Elevated ozone increases nitrifying and denitrifying enzyme activities in the rhizosphere of wheat after 5 years of fumigation

Effect of Cobalt on the Environment and Living Organisms - A Review

Microbial ecology research in New Zealand

Contact Info

Product

Resources

About