dc.contributorUniversidade Federal de Viçosa (UFV)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-03-18T15:56:31Z
dc.date.available2015-03-18T15:56:31Z
dc.date.created2015-03-18T15:56:31Z
dc.date.issued2014-01-01
dc.identifierSemina-ciencias Agrarias. Londrina: Univ Estadual Londrina, v. 35, n. 1, p. 179-192, 2014.
dc.identifier1676-546X
dc.identifierhttp://hdl.handle.net/11449/117587
dc.identifier10.5433/1679-0359.2014v35n1p179
dc.identifierWOS:000340334000015
dc.identifierWOS000340334000015.pdf
dc.identifier1069202908129771
dc.identifier0000-0001-5394-0635
dc.description.abstractPotassium (K) is the second nutrient that is required in larger amounts by soybean crop. With the use of high doses of that nutrient and increase of no-tillage areas in last years, some changes occurred in ways of this nutrient application, as well as the introduction of cover crops in the system for straw formation. Due those facts, the aim with this work was to study doses and times of potassium application for soybean sowed as succession for cover crops in no-tillage system, in a clayey Distrofic Red Latosol, in cerrado region. The experimental design was a randomized block with treatments arranged in 3x3x5 factorial scheme, with the following factors, cover crops: Pearl millet (Pennisetum glaucum) and Proso millet (Panicum miliaceum) and a control (fallow area), rates of K2O (0, 50 e 100 kg ha(-1)) and K2O application forms (100% in the cover crops; 100% at sowing of soybean; 100% in topdressing in soybean; 50% at sowing cover crops + 50% at soybean sowing; 50% at soybean sowing + 50% in topdressing in the soybean) with four replicates. The Pennisetum glaucum as soybean predecessor crop yields higher dry matter content than the Panicum miliaceum in a short period of time. In clay soil with high content of potassium there was no response to the applied potassium levels. Full doses of potassium maintenance fertilization can be applied in the predecessor cover crop, at sowing or topdressing in soybean crop.
dc.languagepor
dc.publisherUniv Estadual Londrina
dc.relationSemina-ciencias Agrarias
dc.relation0.349
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectNo-tillage
dc.subjectrecycling of nutrients
dc.subjectanticipation of fertilization
dc.titleDoses e épocas de aplicação de potássio na cultura da soja em sucessão a plantas de cobertura
dc.typeArtículos de revistas


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