Accuracy of plant response potential to fertilization in nutritional diagnoses for phosphorus in sugarcane

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dc.contributor.authorSilva, Gilmara Pereira da
dc.contributor.authorSalvador Wadt, Paulo Guilherme
dc.contributor.authorPrado, Renato de Mello [UNESP]
dc.contributor.authorCaione, Gustavo
dc.contributor.authorModa, Leandro Rossato [UNESP]
dc.contributor.institutionUniv State Mato Grosso UNEMAT
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T17:20:54Z
dc.date.available2022-04-28T17:20:54Z
dc.date.issued2021-12-06
dc.description.abstractThe Plant Response Potential to Fertilization (RPF) method, as it has been interpreted, may result in nutritional diagnoses with low efficiency. In this regard, this work aimed to validate the RPF criterion and determine the percent value to be considered as culm yield increase based on the accuracy of nutritional diagnoses for nutrient P in sugarcane by the CND method. The study used data collected from five experimental areas located in three municipalities in the state of Sao Paulo, Brazil, in 2013 crop year. Database comprised productivity and leaf contents of nutrients obtained from the reference population that indicated yields over 172 tons ha(-1). The CND indices were interpreted by the RPF criterion, with introduction of variable f, and accuracy was determined considering as insufficient diagnosis when the addition of P resulted in yields increase over 5; 10; 15; 20; 25; 30; 35 and 40% between the control situation and the response situation. The use of factor f = 0 in the IBNm adjustment allowed to obtain higher sugarcane culm yields or lower yield losses, which corresponds to the abandonment of interpretation of nutritional indices by the RPF method. The CND is effective in assessing the plants nutritional status when culm yield increases over 35 and 40% are used as reference between the control situation and the response situation with application of P in sugarcane crops.en
dc.description.affiliationUniv State Mato Grosso UNEMAT, Univ Campus Alta Floresta, BR-78580000 Alta Floresta, MT, Brazil
dc.description.affiliationBrazilian Agr Res Corp Embrapa Rondonia, BR 364, Porto Velho, RO, Brazil
dc.description.affiliationUniv Paulista State Julio de Mesquita Filho, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Paulista State Julio de Mesquita Filho, Jaboticabal, SP, Brazil
dc.format.extent10
dc.identifierhttp://dx.doi.org/10.1080/01904167.2021.2014869
dc.identifier.citationJournal Of Plant Nutrition. Philadelphia: Taylor & Francis Inc, 10 p., 2021.
dc.identifier.doi10.1080/01904167.2021.2014869
dc.identifier.issn0190-4167
dc.identifier.urihttp://hdl.handle.net/11449/218413
dc.identifier.wosWOS:000729328700001
dc.language.isoeng
dc.publisherTaylor & Francis Inc
dc.relation.ispartofJournal Of Plant Nutrition
dc.sourceWeb of Science
dc.subjectCND
dc.subjectIBNm
dc.subjectproductivity
dc.subjectvalidation
dc.subjectSaccharum spp
dc.titleAccuracy of plant response potential to fertilization in nutritional diagnoses for phosphorus in sugarcaneen
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dcterms.rightsHolderTaylor & Francis Inc
unesp.author.orcid0000-0002-6728-8008[4]

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