Nitrogen stabilizers mitigate reactive N and greenhouse gas emissions from an arable soil in North China Plain: Field and laboratory investigation.

A - Papers appearing in refereed journals

Sha, Z., Ma, X., Loick, N., Lv, T., Cardenas, L. M., Ma, Y., Liu, X. and Misselbrook, T. H. 2020. Nitrogen stabilizers mitigate reactive N and greenhouse gas emissions from an arable soil in North China Plain: Field and laboratory investigation. Journal of Cleaner Production. 258, p. 121025. https://doi.org/10.1016/j.jclepro.2020.121025

AuthorsSha, Z., Ma, X., Loick, N., Lv, T., Cardenas, L. M., Ma, Y., Liu, X. and Misselbrook, T. H.
Abstract

Nitrogen (N) stabilizers such as urease inhibitors (UI) and nitrification inhibitors (NI) are promising tools to mitigate N losses from fertilized soils. To better understand the efficacy of UI and NI, a 2-year field trial was carried out in the North China Plain (NCP) to analyze the impact of UI and NI on NH3 loss and N transformations following urea fertilizer application. Additionally, a laboratory study using an automated continuous-flow incubation system was conducted under controlled conditions, using the same soil, to evaluate the mitigation potential of the N stabilizers on NO, N2O and CO2 emission. The results showed that a novel UI product, Limus® (BASF, Germany), containing active ingredients N-(n-butyl) thiophosphoric triamide (NBPT) and N-(n-propyl) thiophosphoric triamide (NPPT), limited ammonium formation rate and reduced NH3 loss in both maize (by 85 and 96% for year 1 and 2, respectively) and wheat (by 41 and 64%, for year 1 and 2, respectively) seasons. The 3, 4-dimethypyrazole phosphate (DMPP) amendment significantly retarded nitrate formation rate but the effectiveness was compromised by high ambient temperature; additionally, the NI amendment increased NH3 emission (by 16 and 24% for maize and wheat year 2, respectively). In the laboratory incubation experiment, addition of the UI reduced emissions of NO, N2O and CO2 by 89, 73 and 19%, respectively, while the addition of the NI reduced the respective emissions by 95, 83 and 24% over the 16 d incubation period. These results suggest that N stabilizers can play a significant role in the mitigation of the environmental impacts of intensive agriculture, and, in particular, that the UI amendment may have the better potential to reduce N losses in the climatic and soil conditions of the NCP, and that the NI should be avoided under high ambient temperatures.

KeywordsUrease inhibitor; Nitrification inhibitor; NH3 volatilization; NO emission; N2O emission
Year of Publication2020
JournalJournal of Cleaner Production
Journal citation258, p. 121025
Digital Object Identifier (DOI)https://doi.org/10.1016/j.jclepro.2020.121025
Open accessPublished as non-open access
FunderBBSRC Newton funding
Biotechnology and Biological Sciences Research Council
Funder project or codeUK - China Virtual Joint Centre for Improved Nitrogen Agronomy (CINAG)
S2N - Soil to Nutrition - Work package 2 (WP2) - Adaptive management systems for improved efficiency and nutritional quality
Output statusPublished
Publication dates
OnlineMar 2020
PublisherElsevier Sci Ltd
ISSN0959-6526

Permalink - https://repository.rothamsted.ac.uk/item/979y7/nitrogen-stabilizers-mitigate-reactive-n-and-greenhouse-gas-emissions-from-an-arable-soil-in-north-china-plain-field-and-laboratory-investigation

Restricted files

Publisher's version

Under embargo indefinitely

28 total views
0 total downloads
1 views this month
0 downloads this month