Correlação da produtividade do feijão com a resistência à penetração do solo sob plantio direto

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCarvalho, Guilherme J.
dc.creatorCarvalho, Morel de P.
dc.creatorFreddi, Onã Da S.
dc.creatorMartins, Mariana V.
dc.date2014-05-27T11:21:54Z
dc.date2016-10-25T18:22:21Z
dc.date2014-05-27T11:21:54Z
dc.date2016-10-25T18:22:21Z
dc.date2006-07-01
dc.date.accessioned2017-04-06T01:19:16Z
dc.date.available2017-04-06T01:19:16Z
dc.identifierRevista Brasileira de Engenharia Agricola e Ambiental, v. 10, n. 3, p. 765-771, 2006.
dc.identifier1415-4366
dc.identifier1807-1929
dc.identifierhttp://hdl.handle.net/11449/68951
dc.identifierhttp://acervodigital.unesp.br/handle/11449/68951
dc.identifier10.1590/S1415-43662006000300033
dc.identifierS1415-43662006000300033
dc.identifier2-s2.0-33846969583.pdf
dc.identifier2-s2.0-33846969583
dc.identifierhttp://dx.doi.org/10.1590/S1415-43662006000300033
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890253
dc.descriptionThe soil mechanical resistance to penetration (PR) has great influence on vegetative development as the root growth and the crop productivity change in inverse proportion. Thus, the objective of this research was to study correlation between the bean grain productivity and the PR in an Oxisol cultivated for four years in no-tillage system at FEIS/UNESP. The attributes PR and yield were determined in a regular grid with 119 sample points. The PR was determined in the layers of 0-0.05, 0.05-0.10, 0.10-0.15, 0.15-0.20 and 0.25-0.30 m. The results were submitted to procedures of descriptive statistics, linear correlation and geostatistic analysis. The linear correlation between the yield and PR was practically null, as in all soil layers investigated it showed determination coefficients (R2) smaller than 0.03 and not significant. The geostatistic analysis showed moderate structure of spatial dependency for PR in the layers of 0.05-0.10 and 0.10-0.15 m, and strong for yield; however, the conjugate spatial analysis of such attributes showed no correlation, therefore, the spatial variability of PR did not influence the yield.
dc.languagepor
dc.relationRevista Brasileira de Engenharia Agrícola e Ambiental
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCone index
dc.subjectGeostatistic
dc.subjectSoil compaction
dc.subjectSpatial variability
dc.titleCorrelação da produtividade do feijão com a resistência à penetração do solo sob plantio direto
dc.typeOtro


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