Biological and synthetic approaches to inhibiting nitrification in non‑tilled Mediterranean soils
dc.contributor.author | Bozal Leorri, Adrián | |
dc.contributor.author | Corrochano Monsalve, Mario | |
dc.contributor.author | Arregui, Luis Miguel | |
dc.contributor.author | Aparicio Tejo, Pedro M. | |
dc.contributor.author | González Murua, María del Carmen Begoña | |
dc.date.accessioned | 2021-11-12T09:34:56Z | |
dc.date.available | 2021-11-12T09:34:56Z | |
dc.date.issued | 2021-10-13 | |
dc.identifier.citation | Chemical and biological technologies in agriculture 8 : (2021) // Article ID 51 | es_ES |
dc.identifier.issn | 2196-5641 | |
dc.identifier.uri | http://hdl.handle.net/10810/53745 | |
dc.description.abstract | [EN] Background: The increasing demand for food production has led to a tenfold increase in nitrogen (N) fertilizer use since the Green Revolution. Nowadays, agricultural soils have been turned into high-nitrifying environments that increase N pollution. To decrease N losses, synthetic nitrification inhibitors (SNIs) such as 3,4-dimethylpyrazole phosphate (DMPP) have been developed. However, SNIs are not widely adopted by farmers due to their biologically limited stability and soil mobility. On the other hand, allelopathic substances from root exudates from crops such as sorghum are known for their activity as biological nitrification inhibitors (BNIs). These substances are released directly into the rhizosphere. Nevertheless, BNI exudation could be modified or even suppressed if crop development is affected. In this work, we compare the performance of biological (sorghum crop) and synthetic (DMPP) nitrification inhibitors in field conditions. Results: Sorghum crop BNIs and DMPP prevented an increase in the abundance of ammonia-oxidizing bacteria (AOB) without affecting the total bacterial abundance. Both nitrification inhibitors maintained similar soil NH4+ content, but at 30 days post-fertilization (DPF), the sorghumBNIs resulted in higher soil NO3- content than DMPP. Even so, these inhibitors managed to reduce 64% and 96%, respectively, of the NO3--N/NH4+-N ratio compared to the control treatment. Similar to soil mineral N, there were no differences in leaf delta N-15 values between the two nitrification inhibitors, yet at 30 DPF, delta N-15 values from sorghum BNI were more positive than those of DMPP. N2O emissions from DMPP-treated soil were low throughout the experiment. Nevertheless, while sorghum BNIs also maintained low N2O emissions, they were associated with a substantial N2O emission peak at 3 DPF that lasted until 7 DPF. Conclusions: Our results indicate that while sorghum root exudates can reduce nitrification in field soil, even at the same efficiency as DMPP for a certain amount of time, they are not able to prevent the N pollution derived from N fertilization as DMPP does during the entire experiment. Graphic Abstract | es_ES |
dc.description.sponsorship | This project was funded by the Spanish Government (RTI2018-094623-B-C22 MCIU/AEI/FEDER, UE) and by the Basque Government (IT-932-16). Adrian Bozal-Leorri holds a Grant from the Basque Government (PRE-2020-2-0142). Mario Corrochano-Monsalve holds a Grant from the Ministry of Economy and Business of the Spanish Government (BES-2016-076725). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIU/RTI2018-094623-B-C22 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/BES-2016-076725 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | Sorghum | es_ES |
dc.subject | DMPP | es_ES |
dc.subject | amoA gene | es_ES |
dc.subject | soil mineral nitrogen | es_ES |
dc.subject | δ15N | es_ES |
dc.subject | nitrous oxide emissions | es_ES |
dc.subject | no‑till farming | es_ES |
dc.title | Biological and synthetic approaches to inhibiting nitrification in non‑tilled Mediterranean soils | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http:// creat iveco mmons. org/ licen ses/ by/4. 0/. The Creative Commons Public Domain Dedication waiver (http:// creat iveco mmons. org/ publi cdoma in/ zero/1. 0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://chembioagro.springeropen.com/articles/10.1186/s40538-021-00250-7 | es_ES |
dc.identifier.doi | 10.1186/s40538-021-00250-7 | |
dc.departamentoes | Biología vegetal y ecología | es_ES |
dc.departamentoeu | Landaren biologia eta ekologia | es_ES |
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regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this
licence, visit http:// creat iveco mmons. org/ licen ses/ by/4. 0/. The Creative Commons Public Domain Dedication waiver (http:// creat iveco
mmons. org/ publi cdoma in/ zero/1. 0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.