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dc.contributor.authorVeras, Márcia de Sousapt_BR
dc.contributor.authorRamos, Maria Lucrécia Gerosapt_BR
dc.contributor.authorOliveira, Daiana Nara Santospt_BR
dc.contributor.authorFigueiredo, Cícero Célio dept_BR
dc.contributor.authorCarvalho, Arminda Moreira dept_BR
dc.contributor.authorPulrolnik, Karinapt_BR
dc.contributor.authorSouza, Kleberson Worslley dept_BR
dc.date.accessioned2017-12-07T05:17:11Z-
dc.date.available2017-12-07T05:17:11Z-
dc.date.issued2016pt_BR
dc.identifier.citationVERAS, Márcia de Sousa et al. Cover crops and nitrogen fertilization effects on nitrogen soil fractions under corn cultivation in a no-tillage system. Revista Brasileira de Ciência do Solo, Viçosa, v. 40, e0150092, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100508&lng=en&nrm=iso>. Acesso em: 13 mar. 2018. Epub Apr 29, 2016. doi: http://dx.doi.org/10.1590/18069657rbcs20150092.pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/30046-
dc.language.isoenpt_BR
dc.publisherSociedade Brasileira de Ciência do Solopt_BR
dc.rightsAcesso Abertopt_BR
dc.titleCover crops and nitrogen fertilization effects on nitrogen soil fractions under corn cultivation in a no-tillage systempt_BR
dc.typeArtigopt_BR
dc.subject.keywordSolos - manejopt_BR
dc.subject.keywordPlantas - nutriçãopt_BR
dc.rights.licenseRevista Brasileira de Ciência do Solo - This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100508&lng=en&nrm=iso. Acesso em: 13 mar. 2018.-
dc.identifier.doihttp://dx.doi.org/10.1590/18069657rbcs20150092pt_BR
dc.description.abstract1The use of cover crops has recently increased and represents an essential practice for the sustainability of no-tillage systems in the Cerrado region. However, there is little information on the effects of nitrogen fertilization and cover crop use on nitrogen soil fractions. This study assessed changes in the N forms in soil cropped to cover crops prior to corn growing. The experiment consisted of a randomized complete block design arranged in split-plots with three replications. Cover crops were tested in the plots, and the N topdressing fertilization was assessed in the subplots. The following cover species were planted in succession to corn for eight years: Urochloa ruziziensis, Canavalia brasiliensis M. ex Benth, Cajanus cajan (L.) Millsp, and Sorghum bicolor (L.) Moench. After corn harvesting, the soil was sampled at depths of 0.00-0.10 and 0.10-0.20 m. The cover crops showed different effects at different soil depths. The soil cultivated with U. ruziziensis showed higher contents of total-N and particulate-N than the soil cultivated with C. cajan. Particulate-N was the most sensitive to changes in the soil management among the fractions of N assessed. The soil under N topdressing showed a lower content of available-N in the 0.10-0.20 m layer, which may be caused by the season in which the sampling was conducted or the greater uptake of the available-N by corn.-
dc.description.unidadeFaculdade de Agronomia e Medicina Veterinária (FAV)-
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