Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorFlores, Rilner Alves-
Autor(es): dc.creatorPrado, Renato de Mello-
Autor(es): dc.creatorPancelli, Marcio Alexandre-
Autor(es): dc.creatorAlmeida Junior, Hilario-
Autor(es): dc.creatorModa, Leandro Rosatto-
Autor(es): dc.creatorMontes Nogueira Borges, Bernardo Melo-
Autor(es): dc.creatorSouza Junior, Jonas Pereira de-
Data de aceite: dc.date.accessioned2021-03-10T21:21:51Z-
Data de disponibilização: dc.date.available2021-03-10T21:21:51Z-
Data de envio: dc.date.issued2014-12-03-
Data de envio: dc.date.issued2014-12-03-
Data de envio: dc.date.issued2014-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.4067/S0718-58392014000100013-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/113237-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/113237-
Descrição: dc.descriptionThe presence of mulch on the soil surface after the mechanical harvesting of sugarcane (Saccharum officinarum L.) enhances the cycling of nutrients, especially K, which can decrease K fertilizer recommendations for the crop. The aim of this study was to evaluate the effect of K addition to an Oxisol, with an initial concentration 0.07 cmol(c) K kg(-1), in first and second ratoon (no-till) sugarcane cultures by a conservationist system, i.e. rational use of fertilizers, use of alternative inputs and especially the maintenance of residues in soil that was previously burned to facilitate cutting. The following K doses were tested: 0, 32.5, 65, 130, and 195 kg K2O ha(-1), arranged in a randomized block design with five replicates. Potassium content in the soil and in the plant, as well as the yield and the quality of stalks were evaluated. Soil K application increased K concentration in soil and plant, and was reflected in the prodUction of stalks, with higher production (87.5 and 107.5 t ha(-1)) with the use of 120 and 123 kg K2O ha(-1) in first and second ratoon sugarcane, respectively. At the first 2 yr it was not possible to reduce the K fertilization in ratoon. Therefore, with the introduction of the conservationist system there was an increase (20 t ha(-1)) at the second ratoon regarding the first one with the same applied rate.-
Formato: dc.format83-88-
Idioma: dc.languageen-
Publicador: dc.publisherInst Investigaciones Agropecuarias-
Relação: dc.relationChilean Journal of Agricultural Research-
Relação: dc.relation0.775-
Relação: dc.relation0,377-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectPlant nutrition-
Palavras-chave: dc.subjectresidues covering-
Palavras-chave: dc.subjectSaccharum officinaruin-
Título: dc.titlePotassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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