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dc.contributor.author
Piccinetti, Carlos Fabián
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dc.contributor.author
Bacigaluppo, Silvina
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dc.contributor.author
Di Ciocco, César Agusto
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dc.contributor.author
De Tellería, J. M.
dc.contributor.author
Salvagiotti, Fernando
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dc.date.available
2022-08-08T16:44:42Z
dc.date.issued
2021-11
dc.identifier.citation
Piccinetti, Carlos Fabián; Bacigaluppo, Silvina; Di Ciocco, César Agusto; De Tellería, J. M.; Salvagiotti, Fernando; Soybean in rotation with cereals attenuates nitrous oxide emissions as compared with soybean monoculture in the Pampas region; Elsevier Science; Geoderma; 402; 11-2021; 1-12
dc.identifier.issn
0016-7061
dc.identifier.uri
http://hdl.handle.net/11336/164588
dc.description.abstract
Nitrous oxide (N-N2O) emissions in the agricultural sector represent ca. 25% of total N-N2O emissions on a global scale. In Argentina, information on agricultural emissions is scarce, and thus, N-N2O emissions are estimated by IPCC equations. Most reports in Argentina have estimated N-N2O emissions at crop scale, while few studies estimated emissions at the cropping system scale. Soybean in Argentina is mainly planted as monoculture, though, the inclusion of cereals in crop rotations may modify soil properties associated with N-N2O emissions such as water-filled pore space (%WFPS), soil temperature, or nitrate content. The objectives of this work were to: i) compare N-N2O emissions in crop sequences that include soybean in different proportions; ii) evaluate the impact of these emissions in relation with N inputs (fertilizer + BNF) at the cropping sequence level, and iii) compare these observations with emissions as estimated by the IPCC equation (tier 1). During two years, N-N2O emissions, soil N-NO3-, soil WFPS, and soil temperature were measured biweekly in a long-term experiment under no-tillage in four sequences: i) full-season soybean monoculture (S-S); ii) winter cover crop/soybean (CC/S); iii) double-cropped wheat/soybean — maize (W/S-M), and vi) double-cropped wheat/soybean — winter cover crop/maize (W/S-CC/M). Aboveground biomass, yield (expressed in glucose equivalents), and nitrogen (N) uptake were determined for each crop at harvest. For soybean, additionally to these variables, N derived from biological N fixation (BNF) was determined, as well. N-N2O emissions were scaled to yield and to vegetative biomass. During the two years of this study, cumulated biomass (expressed in glucose equivalents) was significantly lower in S-S and CC/S (29.5 and 36.8 Mg GluEq ha−1, respectively) than in W/S-M and W/S-CC/M (48.6 and 54.6 Mg GluEq ha−1, respectively). In the same period, exported cumulated N with grains was similar among sequences averaging 277 kg N ha−1, while the largest cumulated N input (N fertilizer + BNF) was 392 kg N ha−1 in W/S-CC/M, surpassing the other sequences by 100%. N-N2O flux rates were the lowest in W/S-M (7.8 μg N-N2O m-2h−1) and the highest in CC/S (19.0 μg N-N2O m-2h−1). Therefore, at the cropping sequence level, N-N2O emissions represented on average 0.62% of cumulated N inputs. A multiple regression model indicated that N-N2O emissions were more related to soil %WFPS (0–20 cm) and soil temperature (at 10 cm). IPCC direct emission equation (tier 1) overestimated N-N2O emissions for W/S-M and W/S-CC-M. In absolute terms, sequences including cereals showed similar cumulated emissions to S-S, however, when emission were scaled to unit yield or vegetative biomass, sequences that included cereals in the rotation attenuated N-N2O losses.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CEREALS
dc.subject
CROP SEQUENCES
dc.subject
GRAIN YIELD AND VEG-SCALED
dc.subject
NITROGEN
dc.subject
NITROUS OXIDE
dc.subject
SOYBEAN
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Soybean in rotation with cereals attenuates nitrous oxide emissions as compared with soybean monoculture in the Pampas region
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-08T15:14:25Z
dc.journal.volume
402
dc.journal.pagination
1-12
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Piccinetti, Carlos Fabián. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Microbiología y Zoología Agrícola; Argentina
dc.description.fil
Fil: Bacigaluppo, Silvina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Santa Fe. Estación Experimental Agropecuaria Oliveros; Argentina
dc.description.fil
Fil: Di Ciocco, César Agusto. Universidad Nacional de Luján; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ecología y Desarrollo Sustentable; Argentina
dc.description.fil
Fil: De Tellería, J. M.. No especifíca;
dc.description.fil
Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Santa Fe. Estación Experimental Agropecuaria Oliveros; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.journal.title
Geoderma
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.geoderma.2021.115192
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