Brachiaria species influence nitrate transport in soil by modifying soil structure with their root system

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniv Leeds-
Autor(es): dc.contributorUniv Nottingham-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Estadual de Ponta Grossa (UEPG)-
Autor(es): dc.contributorUniv Aberdeen-
Autor(es): dc.creatorGaldos, M.-
Autor(es): dc.creatorBrown, E.-
Autor(es): dc.creatorRosolem, C. A. [UNESP]-
Autor(es): dc.creatorPires, L. F.-
Autor(es): dc.creatorHallett, P. D.-
Autor(es): dc.creatorMooney, S. J.-
Data de aceite: dc.date.accessioned2022-02-22T00:11:40Z-
Data de disponibilização: dc.date.available2022-02-22T00:11:40Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-03-19-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41598-020-61986-0-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/197235-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/197235-
Descrição: dc.descriptionLeaching of nitrate from fertilisers diminishes nitrogen use efficiency (the portion of nitrogen used by a plant) and is a major source of agricultural pollution. To improve nitrogen capture, grasses such as brachiaria are increasingly used, especially in South America and Africa, as a cover crop, either via intercropping or in rotation. However, the complex interactions between soil structure, nitrogen and the root systems of maize and different species of forage grasses remain poorly understood. This study explored how soil structure modification by the roots of maize (Zea maize), palisade grass (Brachiaria brizantha cv. Marandu) and ruzigrass (Brachiaria ruziziensis) affected nitrate leaching and retention, measured via chemical breakthrough curves. All plants were found to increase the rate of nitrate transport suggesting root systems increase the tendency for preferential flow. The greater density of fine roots produced by palisade grass, subtly decreased nitrate leaching potential through increased complexity of the soil pore network assessed with X-ray Computed Tomography. A dominance of larger roots in ruzigrass and maize increased nitrate loss through enhanced solute flow bypassing the soil matrix. These results suggest palisade grass could be a more efficient nitrate catch crop than ruzigrass (the most extensively used currently in countries such as Brazil) due to retardation in solute flow associated with the fine root system and the complex pore network.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFAPEG-Goias Research Foundation-
Descrição: dc.descriptionFAPEMA-Maranhao Research Foundation-
Descrição: dc.descriptionBiotechnology and Biological Sciences Research Council-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Leeds, Sch Earth & Environm, Inst Climate & Atmospher Sci, Leeds LS2 9JT, W Yorkshire, England-
Descrição: dc.descriptionUniv Nottingham, Sch Biosci, Div Agr & Environm Sci, Sutton Bonington Campus, Loughborough LE12 5RD, Leics, England-
Descrição: dc.descriptionSao Paulo State Univ, Dept Crop Sci, Botucatu, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Ponta Grossa, Dept Phys, Ponta Grossa, Parana, Brazil-
Descrição: dc.descriptionUniv Aberdeen, Sch Biol Sci, Aberdeen, Scotland-
Descrição: dc.descriptionSao Paulo State Univ, Dept Crop Sci, Botucatu, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2015/50305-8-
Descrição: dc.descriptionFAPEG-Goias Research Foundation: 2015-10267001479-
Descrição: dc.descriptionFAPEMA-Maranhao Research Foundation: RCUK-02771/16-
Descrição: dc.descriptionBiotechnology and Biological Sciences Research Council: BB/N013201/1-
Descrição: dc.descriptionCAPES: 303726/2015-6-
Descrição: dc.descriptionCAPES: 88881.119578/2016-01-
Formato: dc.format11-
Idioma: dc.languageen-
Publicador: dc.publisherNature Publishing Group-
Relação: dc.relationScientific Reports-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleBrachiaria species influence nitrate transport in soil by modifying soil structure with their root system-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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