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dc.contributor.authorVERAS, M. de S.pt_BR
dc.contributor.authorRAMOS, M. L. G.pt_BR
dc.contributor.authorOLIVEIRA, D. N. S.pt_BR
dc.contributor.authorFIGUEIREDO, C. C. dept_BR
dc.contributor.authorCARVALHO, A. M. dept_BR
dc.contributor.authorPULROLNIK, K.pt_BR
dc.contributor.authorSOUZA, K. W. dept_BR
dc.date.accessioned2016-08-25T07:05:29Z-
dc.date.available2016-08-25T07:05:29Z-
dc.date.created2016-08-23pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationRevista Brasileira de Ciência do Solo, Viçosa, v. 40, April 2016.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1051488pt_BR
dc.descriptionABSTRACT: The 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.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectFertilization and nutrition of annual cropspt_BR
dc.subjectAdubação e nutrição de culturas anuaispt_BR
dc.subjectNutrição de plantaspt_BR
dc.titleCover Crops and Nitrogen Fertilization Effects on Nitrogen Soil Fractions under Corn Cultivation in a No-Tillage System.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-08-25T07:05:29Zpt_BR
dc.subject.thesagroManejo do solopt_BR
dc.subject.nalthesaurusplant nutritionpt_BR
dc.subject.nalthesaurussoil managementpt_BR
riaa.ainfo.id1051488pt_BR
riaa.ainfo.lastupdate2016-08-24pt_BR
dc.identifier.doihttp://dx.doi.org/10.1590/18069657rbcs20150092pt_BR
dc.contributor.institutionARMINDA MOREIRA DE CARVALHO, CPAC; KARINA PULROLNIK, CPAC; KLEBERSON WORSLLEY DE SOUZA, CPAC.pt_BR
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