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

dc.contributorUniversidade Federal de Goiás (UFG)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorFlores, Rilner Alves
dc.creatorPrado, Renato de Mello [UNESP]
dc.creatorPancelli, Marcio Alexandre [UNESP]
dc.creatorAlmeida Junior, Hilario [UNESP]
dc.creatorModa, Leandro Rosatto [UNESP]
dc.creatorMontes Nogueira Borges, Bernardo Melo [UNESP]
dc.creatorSouza Junior, Jonas Pereira de [UNESP]
dc.date2014-12-03T13:11:32Z
dc.date2014-12-03T13:11:32Z
dc.date2014-01-01
dc.date.accessioned2023-09-09T10:12:22Z
dc.date.available2023-09-09T10:12:22Z
dc.identifierhttp://dx.doi.org/10.4067/S0718-58392014000100013
dc.identifierChilean Journal Of Agricultural Research. Chillan: Inst Investigaciones Agropecuarias, v. 74, n. 1, p. 83-88, 2014.
dc.identifier0718-5839
dc.identifierhttp://hdl.handle.net/11449/113237
dc.identifier10.4067/S0718-58392014000100013
dc.identifierWOS:000335634800013
dc.identifierWOS000335634800013.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8762846
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.
dc.descriptionUniv Fed Goias, Escola Agr, BR-74690900 Goiania, Go, Brazil
dc.descriptionUniv Estadual Paulista, UNESP, Fac Ciencias Agr & Vet, Dept Solos & Adubos, Jaboticabal, SP, Brazil
dc.descriptionUniv Estadual Paulista, UNESP, Fac Ciencias Agr & Vet, Dept Solos & Adubos, Jaboticabal, SP, Brazil
dc.format83-88
dc.languageeng
dc.publisherInst Investigaciones Agropecuarias
dc.relationChilean Journal of Agricultural Research
dc.relation0.775
dc.relation0,377
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectPlant nutrition
dc.subjectresidues covering
dc.subjectSaccharum officinaruin
dc.titlePotassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
dc.typeArtigo


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