Nitrification inhibitor DMPSA mitigated N2O emission and promoted NO sink in rainfed wheat

Recio Huetos, Jaime and Álvarez Álvarez, José Manuel and Rodriguez de Quijano Urquiaga, Marta and Vallejo Garcia, Antonio (2019). Nitrification inhibitor DMPSA mitigated N2O emission and promoted NO sink in rainfed wheat. "Environmental Pollution" (n. 245); pp. 199-207. ISSN 0269-7491. https://doi.org/10.1016/j.envpol.2018.10.135.

Description

Title: Nitrification inhibitor DMPSA mitigated N2O emission and promoted NO sink in rainfed wheat
Author/s:
  • Recio Huetos, Jaime
  • Álvarez Álvarez, José Manuel
  • Rodriguez de Quijano Urquiaga, Marta
  • Vallejo Garcia, Antonio
Item Type: Article
Título de Revista/Publicación: Environmental Pollution
Date: February 2019
ISSN: 0269-7491
Subjects:
Freetext Keywords: Consumption of NO; Automatic dynamic chamber; Nitrification inhibitors; Nitrous oxide; Cropping system; Nitrogen use efficiency; Nutrient cycling
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Química y Tecnología de Alimentos
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Fertilized cropping systems are important sources of nitrous oxide (N2O) and nitric oxide (NO) to the atmosphere, and biotic and abiotic processes control the production and consumption of these gases in the soil. In fact, the inhibition of nitrification after application of urea or an ammonium-based fertilizer to agricultural soils has resulted in an efficient strategy to mitigate both N2O and NO in aerated agricultural soils. Therefore, the NO and N2O mitigation capacity of a novel nitrification inhibitor (NI), 2-(3,4- dimethyl-1H-pyrazol-1-yl) succinic acid isomeric mixture (DMPSA), has been studied in a winter wheat crop. A high temporal resolution of fluxes of NO and NO2, obtained by using automatic chambers for urea (U) and urea with DMPSA, allowed a better understanding of the temporal net emissions of these gases under field conditions. Seventy-five days after fertilization, the effective reduction of nitrification by DMPSA significantly decreased the production of NO with respect to the treatment without it, giving net consumption of NO in the soil ( 61.72 g-N ha 1 ) for U þ DMPSA in comparison to net production (227.44 g-N ha 1 ) for U. The explanation of NO deposition after NI application, due to biotic and abiotic processes in the soil-plant system, supposes a challenge that needs to be studied in the future. In the case of N2O, the addition of DMPSA significantly mitigated the emissions of this gas by 71%, though the total N2O emissions in both fertilized treatments were significantly greater than those of the control (43.69 gN ha 1 ). Regarding the fertilized treatments, no significant effect of DMPSA in comparison to urea alone was observed on grain yield nor bread-making wheat quality. To sum up, we got a significant reduction of N2O and NO with the addition of DMPSA, without a loss in yield and quality parameters in wheat.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL2015-64582-C3-3-RUnspecifiedUnspecifiedEstrategia de mitigación de emisiones de gases basada en inhibidores de la nitrificación
Madrid Regional GovernmentS2013/ABI-2717AGRISOSTUnspecifiedSistemas agrarios sostenibles. Manejo de carbono, nitrógeno y agua para optimizar producción y calidad

More information

Item ID: 54628
DC Identifier: http://oa.upm.es/54628/
OAI Identifier: oai:oa.upm.es:54628
DOI: 10.1016/j.envpol.2018.10.135
Official URL: https://www.sciencedirect.com/science/article/pii/S0269749118332378?via%3Dihub
Deposited by: Memoria Investigacion
Deposited on: 29 Apr 2019 12:07
Last Modified: 29 Apr 2019 12:07
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