Reserving nitrogen in soils through microbial nitrate reduction to ammonium

Dissimilatory nitrate ammonification and N(2)fixation helps maintain nitrogen nutrition in resource-limited rice paddies

Arjun Pandey, Helen Suter, Ji-Zheng He, Hang-Wei Hu, Deli Chen

2021-01-22

Un-fertilized rice paddies have shown maintained soil nitrogen (N) status, stable N supply to the rice plant and sustained rice yi..

Growth of comammox Nitrospira is inhibited by nitrification inhibitors in agricultural soils

Chaoyu Li, Hang-Wei Hu, Qing-Lin Chen, Deli Chen, Ji-Zheng He

2020-02-01

Purpose: The discovery of comammox Nitrospira being capable of complete oxidising ammonia to nitrate radically challenged the conv..

Comammox Nitrospira play an active role in nitrification of agricultural soils amended with nitrogen fertilizers

Chaoyu Li, Hang-Wei Hu, Qing-Lin Chen, Deli Chen, Ji-Zheng He

2019-11-01

The recent discovery of complete ammonia oxidizers (comammox Nitrospira) challenged the paradigm of the two-step nitrification med..

Dissimilatory nitrate reduction to ammonium dominates nitrate reduction in long-term low nitrogen fertilized rice paddies

Arjun Pandey, Helen Suter, Jim He, Hangwei Hu, Deli Chen

2019-04-01

Dissimilatory nitrate reduction to ammonium (DNRA) and diazotrophic N2 fixation contribute to nitrogen (N) supply in rice paddies,..

Effects of nitrification inhibitors on gross N nitrification rate, ammonia oxidizers, and N2O production under different temperatures in two pasture soils

Ting Lan, Helen Suter, Rui Liu, Shu Yuan, Deli Chen

2018-10-01

Australian pasture soil for cattle and sheep industries constitutes the principal land use with considerable N fertilizer consumpt..

Nitrogen Addition Decreases Dissimilatory Nitrate Reduction to Ammonium in Rice Paddies

Arjun Pandey, Helen Suter, Ji-Zheng He, Hang-Wei Hu, Deli Chen

2018-09-01

Dissimilatory nitrate reduction to ammonium (DNRA), denitrification, anaerobic ammonium oxidation (anammox), and biological N2 fix..

Nitrogen transformation rates and N2O producing pathways in two pasture soils

Ting Lan, Helen Suter, Rui Liu, Xuesong Gao, Deli Chen

2018-09-01

Purpose: Better understanding of N transformations and the regulation of N2O-related N transformation processes in pasture soil co..

Manipulating the soil microbiome for improved nitrogen management

Hang-Wei Hu, Ji-Zheng He

2018-03-01

<jats:p>The soil microbiome, including bacteria, archaea, fungi, viruses, and other microbial eukaryotes, has crucial roles in the..

Comammox-a newly discovered nitrification process in the terrestrial nitrogen cycle

Hang-Wei Hu, Ji-Zheng He

2017-12-01

Purpose: Nitrification, the microbial oxidation of ammonia to nitrate via nitrite, is a pivotal component of the biogeochemical ni..

Nitrifier-induced denitrification is an important source of soil nitrous oxide and can be inhibited by a nitrification inhibitor 3,4-dimethylpyrazole phosphate

Xiuzhen Shi, Hang-Wei Hu, Xia Zhu-Barker, Helen Hayden, Juntao Wang, Helen Suter, Deli Chen, Ji-Zheng He

2017-12-01

Soil ecosystem represents the largest contributor to global nitrous oxide (N2 O) production, which is regulated by a wide variety ..

Effects of the nitrification inhibitor acetylene on nitrous oxide emissions and ammonia-oxidizing microorganisms of different agricultural soils under laboratory incubation conditions

Rui Liu, Helen L Hayden, Hangwei Hu, Jizheng He, Helen Suter, Deli Chen

2017-10-01

Acetylene (C2H2) is an effective nitrification inhibitor targeting autotrophic ammonia oxidizers, and has shown promise for improv..

Harnessing microbiome-based biotechnologies for sustainable mitigation of nitrous oxide emissions

Hang-Wei Hu, Ji-Zheng He, Brajesh K Singh

2017-09-01

Achieving the Sustainable Development Goal of climate change mitigation within this century will require adoption of new innovativ..

Response of ammonia oxidizers and denitrifiers to repeated applications of a nitrification inhibitor and a urease inhibitor in two pasture soils

Xiuzhen Shi, Hang-Wei Hu, Kevin Kelly, Deli Chen, Ji-Zheng He, Helen Suter

2017-04-01

Purpose: The nitrification inhibitor 3,4-dimethylpyrazol-phosphate (DMPP) and the urease inhibitor N-(n-butyl) thiophosphoric tria..

The effect of temperature and moisture on the source of N2O and contributions from ammonia oxidizers in an agricultural soil

Rui Liu, Helen L Hayden, Helen Suter, Hangwei Hu, Shu Kee Lam, Jizheng He, Pauline M Mele, Deli Chen

2017-01-01

In recent years, identification of the microbial sources responsible for soil N₂O production has substantially advanced with the..

Effects of 3,4-dimethylpyrazole phosphate (DMPP) on nitrification and the abundance and community composition of soil ammonia oxidizers in three land uses

Xiuzhen Shi, Hangwei Hu, Jizheng He, Deli Chen, Helen Charlotte Suter

2016-10-01

The application of the nitrification inhibitor, 3,4-dimethylpyrazole-phosphate (DMPP), is considered as an effective strategy to m..

Nitrification Is a Primary Driver of Nitrous Oxide Production in Laboratory Microcosms from Different Land-Use Soils

Rui Liu, Hangwei Hu, Helen Suter, Helen L Hayden, Jizheng He, Pauline Mele, Deli Chen

2016-09-09

Most studies on soil N2O emissions have focused either on the quantifying of agricultural N2O fluxes or on the effect of environme..

Effects of the Nitrification Inhibitor 3,4-Dimethylpyrazole Phosphate on Nitrification and Nitrifiers in Two Contrasting Agricultural Soils

Xiuzhen Shi, Hang-Wei Hu, Christoph Mueller, Ji-Zheng He, Deli Chen, Helen Charlotte Suter

2016-09-01

UNLABELLED: The nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) is a powerful tool that can be used to promote nitro..