Soil microbial indicators for efficient use of nitrification inhibitors
Grant number: LP160101134 | Funding period: 2016 - 2020
This project aims to improve understanding of the efficiency and governing factors of nitrification inhibitors in different agricultural soils. Nitrification inhibitors are widely used to improve nitrogen fertiliser efficiency and reduce greenhouse gas nitrous oxide emissions. However, their effectiveness varies across soil types. One possible reason is the different microbial communities in these soils. The project will address the key knowledge gaps of interactions between the nitrification inhibitors and the soil functional microbial communities. Anticipated outcomes are sound management strategies to improve fertiliser nitrogen use efficiency in Australian agricultural soils.
Related publications (11)
Temporal response of ureolytic and ammonia-oxidizing microbes and pasture yield to urea and NBPT at Leigh Creek of Victoria in Australia
Aineah Obed Luchibia, Helen Suter, Shu Kee Lam, Lee Menhenett, Ji-Zheng He
The urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) has been reported to effectively reduce nitrogen (N) losses by inh..
Responses of ureolytic and nitrifying microbes to urease and nitrification inhibitors in selected agricultural soils in Victoria, Australia
Aineah Obed Luchibia, Helen Suter, Hang-Wei Hu, Shu Kee Lam, Ji-Zheng He
Purpose: Urease inhibitors (UIs) such as N-(n-butyl)thiophosphoric triamide (NBPT) and nitrification inhibitors (NIs) such as 3,4-..
Effects of repeated applications of urea with DMPP on ammonia oxidizers, denitrifiers, and non-targeted microbial communities of an agricultural soil in Queensland, Australia
AO Luchibia, SK Lam, H Suter, Q Chen, B O'Mara, JZ He
Nitrification inhibitors have been reported to reduce nitrous oxide emission and nitrate leaching in agricultural systems. The eff..
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
The recent discovery of complete ammonia oxidizers (comammox Nitrospira) challenged the paradigm of the two-step nitrification med..
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
Australian pasture soil for cattle and sheep industries constitutes the principal land use with considerable N fertilizer consumpt..
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
Acetylene (C2H2) is an effective nitrification inhibitor targeting autotrophic ammonia oxidizers, and has shown promise for improv..
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
Purpose: The nitrification inhibitor 3,4-dimethylpyrazol-phosphate (DMPP) and the urease inhibitor N-(n-butyl) thiophosphoric tria..