Spatial relation of weed competition and soil fertility in soybean farming

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal do Maranhão-
Autor(es): dc.contributorUniversidade Federal do Tocantins-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorFurtado, José Augusto Lima-
Autor(es): dc.creatorAlmeida, Edmilson Igor Bernardo-
Autor(es): dc.creatorde Oliveira, Leonardo Bernardes Taverny-
Autor(es): dc.creatordos Santos, Antonio Clementino-
Autor(es): dc.creatorda Costa, Tiago Vieira-
Autor(es): dc.creatorda Silva, Marcelo de Sousa-
Autor(es): dc.creatorSouza, Jarlyson Bruno Costa-
Autor(es): dc.creatorda Silva Sousa, Washington-
Autor(es): dc.creatorPonte, Islana Silva-
Autor(es): dc.creatorFreitas, José Roberto Brito-
Data de aceite: dc.date.accessioned2025-08-21T15:19:26Z-
Data de disponibilização: dc.date.available2025-08-21T15:19:26Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.21475/ajcs.22.16.07.p3548-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/245966-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/245966-
Descrição: dc.descriptionSoybean is one of the main crops in Brazil, with a significant share of national agribusiness exports. Nonetheless, several factors such as weed competition and soil fertility directly affect soybean yield and productivity. This study aimed to analyse the spatial distribution of weeds as a function of soil fertility and soybean yield in farming fields. We carried out the experiment on a farm located in Brejo, Maranhão state, Brazil, through a geostatistical analysis of 60 sampling points on a regular grid of 10.0 m x 50.0 m. At these points, we collected phytosociological information on the weed community, soil fertility, and soybean yield. We performed principal component analysis (PCA) to determine the most responsive variables and to group them. We determined spatial dependence through geostatistical procedures, with the interpretation and adjustment of variogram components. We identified seven weed species, distributed across seven genera and six botanical families, of which 76.78% were eudicotyledons. In the cluster analysis, we grouped monocotyledonous species separately from eudicotyledons as explained by the morphophysiological contrasts between these botanical classes. Soybean yield did not correlate with soil fertility or weeds. These two factors can be considered only as a share of soybean productivity because their individual variations do not directly influence production factors. The efficient management of weeds and soil fertility should result in a more uniform and potencially more soybean yield when other conditioning factors are also effective.-
Descrição: dc.descriptionUniversidade Federal do Maranhão, CEP 65.500-000,MA-
Descrição: dc.descriptionUniversidade Federal do Tocantins, CEP 77.804-970,TO-
Descrição: dc.descriptionUniversidade Estadual Paulista Júlio Mesquita Filho, CEP 14.884-900,SP-
Descrição: dc.descriptionUniversidade Estadual Paulista Júlio Mesquita Filho, CEP 14.884-900,SP-
Formato: dc.format899-906-
Idioma: dc.languageen-
Relação: dc.relationAustralian Journal of Crop Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGeostatistics-
Palavras-chave: dc.subjectGlycine max (l.)-
Palavras-chave: dc.subjectMerril-
Palavras-chave: dc.subjectPrincipal component analysis-
Palavras-chave: dc.subjectProductivity-
Título: dc.titleSpatial relation of weed competition and soil fertility in soybean farming-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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