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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/52172
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dc.creatorJaqueline de Cássia de Oliveirapt_BR
dc.creatorAlcinei Místico Azevedopt_BR
dc.creatorJuliana Martins Ribeiropt_BR
dc.creatorIgor Costa Freitaspt_BR
dc.creatorRafael Ferreira Diaspt_BR
dc.creatorAna Clara Santos Duartept_BR
dc.creatorPaula Franciele Melopt_BR
dc.creatorÁlvaro Luís Velosopt_BR
dc.creatorLeidivan Almeida Frazãopt_BR
dc.date.accessioned2023-04-18T18:11:51Z-
dc.date.available2023-04-18T18:11:51Z-
dc.date.issued2021-
dc.citation.volume78pt_BR
dc.citation.issueSuppl.pt_BR
dc.citation.spage1pt_BR
dc.citation.epage10pt_BR
dc.identifier.issn1678-992Xpt_BR
dc.identifier.urihttp://hdl.handle.net/1843/52172-
dc.description.resumoThe sampling methods for soil and plant evaluation in integrated production systems need to be refined for their use in experiments. This study purposed a sampling representativeness model to evaluate soil carbon and physiological parameters of marandu palisadegrass intercropped with double rows of eucalyptus in a silvopastoral system in southeastern Brazil. Four transects were delimited within the silvopastoral system and the soil was sampled at 0-5, 5-10, and 10- 20 cm depths to evaluate two parameters of soil organic matter: total organic carbon (TOC) and soil microbial carbon (Cmic). We also evaluated three physiological parameters of marandu palisadegrass: stomatal conductance, transpiration rate, and photosynthetic rate. The sampling strategy was evaluated by the Hatheway and Modified Maximum Curvature (MMC) methods. We found that cultivation of the alley with forage grass and double rows of eucalyptus must be considered to ensure sampling representativeness in a silvopastoral system, once TOC and Cmic and physiological parameters showed variation within the integrated production system. The MMC method could be useful to evaluate silvopastoral systems for experiments and characterization of agricultural areas, as 11 soil samples are representative to evaluate Cmic and TOC, and 13 samples are enough to evaluate the physiological parameters in marandu palisadegrass. The Hatheway method could be applied to experiments that need higher accuracy with a reduction in the minimum difference to be detected between the treatments and a consequent increase in the number of samples to be collected.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofScientia Agricola-
dc.rightsAcesso Abertopt_BR
dc.subjectEucalyptuspt_BR
dc.subjectMMC methodpt_BR
dc.subjectHatheway methodpt_BR
dc.subjectForage grasspt_BR
dc.subjectSoil samplingpt_BR
dc.subject.otherEucaliptopt_BR
dc.subject.otherSolos - Amostragempt_BR
dc.subject.otherPlantas forrageiras - Solospt_BR
dc.titleSampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral systempt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/sa/a/3CzWm77qMs8p7k4ydKBkbyR/?format=pdf&lang=enpt_BR
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