Fate of fertilizer N applied to maize intercropped with forage grass and recovery of residual N by soybean in a double cropping system

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorGazola, Bruno-
Autor(es): dc.creatorMariano, Eduardo-
Autor(es): dc.creatorAndrade, Maria G. O.-
Autor(es): dc.creatorCosta, Vladimir E.-
Autor(es): dc.creatorRosolem, Ciro A.-
Data de aceite: dc.date.accessioned2025-08-21T15:52:40Z-
Data de disponibilização: dc.date.available2025-08-21T15:52:40Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11104-023-06139-8-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/309616-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/309616-
Descrição: dc.descriptionBackground and aims: Understanding the fate of nitrogen (N) in maize (Zea mays L.) intercropped with tropical grass is essential to develop sustainable fertilization recommendations and mitigate greenhouse gas emissions. To test the hypothesis that intercropping forage grass with maize improves yield and fertilizer N recovery in the system, this study evaluated the recovery of N applied to maize intercropped with forage grass grown as a double crop after soybean [Glycine max (L.) Merrill]. Methods: A two–year field experiment was conducted. In each season maize was intercropped with either Guinea grass (Megathyrsus maximus; syn. Panicum maximum) or ruzigrass (Urochloa ruziziensis; syn. Brachiaria ruziziensis) in southeastern Brazil in the presence or absence of N fertilization, followed by a soybean crop. 15N–enriched ammonium sulfate was used to trace the fate of the applied N. Results: Total recovery of fertilizer N by maize differed with season (≈ 35 and 22%) and was greater in the grain than vegetative fractions. Uptake of fertilizer N by intercropped forage grass was less than maize but substantial (≈ 11–18%) After maize harvest more than 60% of the N applied remained in the system, partly in forage grass and maize residues but mostly in soil. Up to 12% of the N applied was recovered by soybean grown in succession. Conclusion: The introduction of either Guinea grass or ruzigrass intercropped with maize can decrease N losses from fertilizer and increase recovery by soybean grown after maize, particularly when maize yield and N uptake are low.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCollege of Agricultural Sciences Department of Crop Science São Paulo State University, SP-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture University of São Paulo-
Descrição: dc.descriptionBiosciences Institute São Paulo State University-
Descrição: dc.descriptionCollege of Agricultural Sciences Department of Crop Science São Paulo State University, SP-
Descrição: dc.descriptionBiosciences Institute São Paulo State University-
Descrição: dc.descriptionFAPESP: 2018/15867-3-
Descrição: dc.descriptionFAPESP: 2019/15563-7-
Formato: dc.format205-219-
Idioma: dc.languageen-
Relação: dc.relationPlant and Soil-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject15N-
Palavras-chave: dc.subjectForage grasses-
Palavras-chave: dc.subjectIntegrated cropping system-
Palavras-chave: dc.subjectNitrogen use efficiency-
Título: dc.titleFate of fertilizer N applied to maize intercropped with forage grass and recovery of residual N by soybean in a double cropping system-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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