dc.creatorCorrendo, Adrián A.
dc.creatorGutiérrez Boem, Flavio Hernán
dc.creatorGarcía, Fernando O.
dc.creatorAlvarez, Carolina
dc.creatorAlvarez, Cristian
dc.creatorAngeli, Ariel
dc.creatorBarbieri, Pablo
dc.creatorBarraco, Miriam Raquel
dc.creatorBerardo, Angel
dc.creatorBoxler, Miguel
dc.creatorCalviño, Pablo
dc.creatorCapurro, Julia Ester
dc.creatorCarta, Hector Guillermo
dc.creatorCaviglia, Octavio
dc.creatorCiampitti, Ignacio A.
dc.creatorDíaz-Zorita, Martín
dc.creatorDíaz-Valdez, Santiago
dc.creatorEcheverría, Hernan E.
dc.creatorEsposito, Gabriel
dc.creatorFerrari, Manuel Carlos
dc.creatorFerraris, Gustavo Nestor
dc.creatorGambaudo, Sebastian
dc.creatorGudelj, Vicente Jorge
dc.creatorIoele, Juan Pablo
dc.creatorMelchiori, Ricardo Jose
dc.creatorMolino, Josefina
dc.creatorOrcellet, Juan Manuel
dc.creatorPagani, Agustín
dc.creatorPautasso, Juan Manuel
dc.creatorReussi Calvo, Nahuel Ignacio
dc.creatorRedel, Matías
dc.creatorRillo, Sergio Nestor
dc.creatorRimski-Korsakov, Helena
dc.creatorSainz Rozas, Hernan Rene
dc.creatorSaks, Matías
dc.creatorTelleria, María Guadalupe
dc.creatorVentimiglia, Luis Alberto
dc.creatorZorzín, Jose L.
dc.creatorZubillaga, Ma. Mercedes
dc.creatorSalvagiotti, Fernando
dc.date.accessioned2021-09-28T10:42:21Z
dc.date.accessioned2023-03-15T14:11:16Z
dc.date.available2021-09-28T10:42:21Z
dc.date.available2023-03-15T14:11:16Z
dc.date.created2021-09-28T10:42:21Z
dc.date.issued2021-09
dc.identifier0378-4290
dc.identifierhttps://doi.org/10.1016/j.fcr.2021.108299
dc.identifierhttp://hdl.handle.net/20.500.12123/10372
dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/S0378429021002458
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6213327
dc.description.abstractThe most widely used approach for prescribing fertilizer nitrogen (N) recommendations in maize (Zea Mays L.) in Argentina is based on the relationship between grain yield and the available N (kg N ha−1), calculated as the sum of pre-plant soil NO3--N at 0−60 cm depth (PPNT) plus fertilizer N (Nf). However, combining covariates related to crop N demand and soil N supply at a large national scale remains unexplored for this model. The aim of this work was to identify yield response patterns associated to yield environment (crop N demand driver) and soil texture (soil N supply driver). A database of 788 experiments (1980−2016) was gathered and analyzed combining quadratic-plateau regression models with bootstrapping to address expected values and variability on response parameters and derived quantities. The database was divided into three groups according to soil texture (fine, medium and coarse) and five groups based on the empirical distribution of maximum observed yields (from Very-Low = <8.5 Mg ha−1 to Very-High = >13.1 Mg ha−1) resulting in fifteen groups. The best model included both, attainable yield environment and soil texture. The yield environment mainly modified the agronomic optimum available N (AONav), with an expected increase rate of ca. 21.4 kg N Mg attainable yield−1, regardless of the soil texture. In Very-Low yield environments, AONav was characterized by a high level of uncertainty, related to a poor fit of the N response model. To a lesser extent, soil texture modified the response curvature but not the AONav, mainly by modifying the response rate to N (Fine > Medium > Coarse), and the N use efficiencies. Considering hypothetical PPNT levels from 40 to 120 kg N ha−1, the expected agronomic efficiency (AENf) at the AONav varied from 7 to 31, and 9–29 kg yield response kg fertilizer N (Nf)−1, for Low and Very-High yield environments, respectively. Similarly, the expected partial factor productivity (PFPNf) at the AONav ranged from 62 to 158, and 55–99 kg yield kg Nf−1, for the same yield environments. These results highlight the importance of combining attainable yield environment and soil texture metadata for refining N fertilizer recommendations. Acknowledging the still low N fertilizer use in Argentina, space exists to safely increasing N fertilizer rates, steering the historical soil N mining profile to a more sustainable agro-environmental scenario in the Pampas.
dc.languageeng
dc.publisherElsevier
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourceField Crops Research 273 : 108299. (Noviembre 2021)
dc.subjectRendimiento de Cultivos
dc.subjectMaíz
dc.subjectTextura del Suelo
dc.subjectFertilidad del Suelo
dc.subjectEficiencia en el Uso de los Nutrientes
dc.subjectNitrógeno
dc.subjectAbonos Nitrogenados
dc.subjectCrop Yield
dc.subjectMaize
dc.subjectSoil Texture
dc.subjectSoil Fertility
dc.subjectNutrient Use Efficiency
dc.subjectNitrogen
dc.subjectNitrogen Fertilizers
dc.titleAttainable yield and soil texture as drivers of maize response to nitrogen : A synthesis analysis for Argentina
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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