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Nitrogen fertilizer effect in production, nutrient accumulation and nitrogen efficiency use of second ratoon sugarcane harvested without straw burning

dc.contributor.authorVale, Diego Wyllyam do [UNESP]
dc.contributor.authorPrado, Renato de Mello [UNESP]
dc.contributor.authorde Moraes, José Reinaldo da Silva Cabral [UNESP]
dc.contributor.authorCruz, Flávio José Rodrigues [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:05:44Z
dc.date.available2022-04-29T08:05:44Z
dc.date.issued2017-05-01
dc.description.abstractSugarcane harvest after straw burning implies rapid mineralization of biomass and greenhouse gas emissions. In this context, maintenance of sugarcane straw on the soil is as a new strategy to circumvent the harmful environmental effects, but imposes a new dynamic regarding nitrogen in the soil-plant system. This study sought to evaluate the effect of nitrogen fertilization on biomass production and nutrient accumulation in leaf (senescent and young) and stalks of sugarcane plant from the second sugarcane ratoon, variety SP 83-2847, harvested mechanically in 2007 after six years without straw burning for six years. This study adopted a randomized block design with five nitrogen doses application (0, 60, 120, 180 and 240 kg ha-1) in the form of ammonium nitrate and four replications. Nitrogen fertilization promoted an increase in leaf (senescent and young) and stalk production of the sugarcane plants. However, excess nitrogen decreased accumulation of macro and micronutrients and nitrogen use efficiency by sugarcane due to dilution effect. Although straw deposition on the soil surface of the sugarcane field had occurred for six years, but mineralization of organic matter from the straw did not provide sufficient nitrogen for the growth of sugarcane plants in control treatments, requiring nitrogen application via fertilization. There is a need to adopt new nitrogen fertilization strategies in order to increase nitrogen use efficiency for greater production of sugarcane.en
dc.description.affiliationDepartement of Soils and Fertilizers Faculty of Agricultural and Veterinary Sciences Campus Jaboticabal São Paulo State University 'Júlio de Mesquita Filho'
dc.description.affiliationUnespDepartement of Soils and Fertilizers Faculty of Agricultural and Veterinary Sciences Campus Jaboticabal São Paulo State University 'Júlio de Mesquita Filho'
dc.format.extent616-623
dc.identifierhttp://dx.doi.org/10.21475/ajcs.17.11.05.p483
dc.identifier.citationAustralian Journal of Crop Science, v. 11, n. 5, p. 616-623, 2017.
dc.identifier.doi10.21475/ajcs.17.11.05.p483
dc.identifier.issn1835-2707
dc.identifier.issn1835-2693
dc.identifier.scopus2-s2.0-85021310799
dc.identifier.urihttp://hdl.handle.net/11449/228347
dc.language.isoeng
dc.relation.ispartofAustralian Journal of Crop Science
dc.sourceScopus
dc.subjectAmmonium nitrate
dc.subjectCO2 emissions
dc.subjectMechanical harvest
dc.subjectMineralization
dc.subjectOrganic matter
dc.titleNitrogen fertilizer effect in production, nutrient accumulation and nitrogen efficiency use of second ratoon sugarcane harvested without straw burningen
dc.typeArtigo
unesp.departmentSolos e Adubos - FCAVpt

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