Soil management of sugarcane fields affecting CO2 fluxes

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dc.contributor.authorMoraes Tavares, Rose Luiza
dc.contributor.authorSiqueira, Diego Silva [UNESP]
dc.contributor.authorPanosso, Alan Rodrigo [UNESP]
dc.contributor.authorFerreira Castioni, Guilherme Adalberto
dc.contributor.authorSouza, Zigomar Menezes de
dc.contributor.authorLa Scala, Newton [UNESP]
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-28T00:18:32Z
dc.date.available2018-11-28T00:18:32Z
dc.date.issued2016-11-01
dc.description.abstractThe harvesting system of green sugarcane, characterized by mechanized harvesting and no crop burning, affects soil quality by increasing the remaining straw left on the soil surface after harvesting, thus, contributing to the improvement of physical, chemical, and microbiological soil attributes, influencing CO2 fluxes. This study aimed to evaluate CO2 fluxes and their relation to soil properties in sugarcane crops under different harvesting managements: burned (B), Green harvesting for 5 years (G-5) and Green harvesting for ten years (G-10). For this, a 1 ha sampling grid with 30 points was installed in each area, all located in the Northeast of Sao Paulo State, Brazil. In each point, CO2 fluxes were measured and the soil was sampled to analyze the microbial biomass, physical (soil moisture and temperature, mean weight diameter, bulk density, clay, macroporosity and microporosity) and chemical characterization (pH, organic C, base saturation and P). The CO2 fluxes were divided into four quantitative criteria: high, moderate, low and very low from the Statistical Division (mean, first quartile, median and third quartile) and the other data were classified according this criterion. The Principal Component Analysis (PCA) was used to identify the main soil attributes that influence CO2 fluxes. The results showed that G-10 CO2 fluxes were 28 and 41 % higher than those in the G-5 and B treatments, respectively. The PCA analysis showed that macroporosity was the main soil attribute that influenced the high CO2 fluxes.en
dc.description.affiliationUniv Estadual Campinas, Dept Soils, FEAGRI, Ave Candid Rondon 501, BR-13083875 Campinas, SP, Brazil
dc.description.affiliationSao Paulo State Univ, FCAV, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationSao Paulo State Univ, FEIS, Al Rio de Janeiro 266, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, FCAV, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, FEIS, Al Rio de Janeiro 266, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipSao Paulo State Foundation for Research Support
dc.description.sponsorshipIdSao Paulo State Foundation for Research Support: FAPESP - 2010/18.979-5
dc.description.sponsorshipIdSao Paulo State Foundation for Research Support: 2011/04.842-0
dc.format.extent543-551
dc.identifierhttp://dx.doi.org/10.1590/0103-9016-2015-0174
dc.identifier.citationScientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 73, n. 6, p. 543-551, 2016.
dc.identifier.doi10.1590/0103-9016-2015-0174
dc.identifier.fileS0103-90162016000600543.pdf
dc.identifier.issn0103-9016
dc.identifier.scieloS0103-90162016000600543
dc.identifier.urihttp://hdl.handle.net/11449/165393
dc.identifier.wosWOS:000389104800008
dc.language.isoeng
dc.publisherUniv Sao Paolo
dc.relation.ispartofScientia Agricola
dc.relation.ispartofsjr0,578
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectSacharum officinarum
dc.subjectprincipal component analysis
dc.subjectporosity
dc.subjectbiomass
dc.titleSoil management of sugarcane fields affecting CO2 fluxesen
dc.typeArtigo
dcterms.rightsHolderUniv Sao Paolo
unesp.author.lattes2134397589741043[3]
unesp.author.orcid0000-0003-3339-1143[2]
unesp.author.orcid0000-0001-9916-1696[3]

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