The use of DRIS for nutritional diagnosis in oil palm in the State of Pará.

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dc.contributorGILSON SERGIO BASTOS DE MATOS, UNIVERSIDADE FEDERAL RURAL DA MAZÔNIA
dc.contributorANTONIO RODRIGUES FERNANDES, UNIVERSIDADE FEDERAL RURAL DA MAZÔNIA
dc.contributorPAULO GUILHERME SALVADOR WADT, CPAF-RO
dc.contributorANTÔNIO JOSÉ DE ABREU PINA, MARBORGES AGROINDÚSTRIA
dc.contributorVINICIUS IDE FRANZINI, CPATU
dc.contributorHELEN MONIQUE NASCIMENTO RAMOS, UNIVERSIDADE FEDERAL RURAL DA MAZÔNIA.
dc.creatorMATOS, G. S. B. de
dc.creatorFERNANDES, A. R.
dc.creatorWADT, P. G. S.
dc.creatorPINA, A. J. de A.
dc.creatorFRANZINI, V. I.
dc.creatorRAMOS, H. M. N.
dc.date2017-05-25T11:11:11Z
dc.date2017-05-25T11:11:11Z
dc.date2017-05-25
dc.date2017
dc.date2018-03-12T11:11:11Z
dc.date.accessioned2026-06-30T23:44:31Z
dc.descriptionThe oil palm crop has expanded significantly in the state of Pará, which has not been followed in a proportional manner by studies aiming at increasing yield through plant nutrition. The objective of this study was to evaluate general and specific norms of the Diagnosis and Recommendation Integrated System (DRIS) for genetic materials of oil palm (African and interspecific hybrid) at two ages (young and adult plants) and evaluate possible deficiencies in fertilization and soil correction practices. The DRIS norms were composed of means, standard deviations, and coefficients of variation of bivariate, specific, and general relationships among nutrients of 144 leaf samples. The DRIS norms specific for genetic material did not differ from the general norms; however, a large number of differences were found between specific bivariate relationships for age groups, among themselves, and in relation to the general norms. The regression analysis between the nutritional balance index and yield were better explained when age groups were discriminated. In the young plants, the number of cases of stands with deficiencies followed the order Ca > Fe > B > S > Mn > K > Mg = Cu > Zn > N > P; and for adults, this order was Ca > Mn > Zn > Fe > S = B > N = Cu > K > Mg > P. The DRIS norms can be utilized in diagnostics regardless of genetic material; however, they must be specified for the age of the plant. Most of the stands showed deficiency in Ca and micronutrients, coinciding with the least used nutrients in oil palm crops in the state of Pará, as well as emphasizing the need for soil liming.
dc.identifierRevista Brasileira de Ciência do Solo, v. 41, e0150466, 2017.
dc.identifier1806-9657
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1070079
dc.identifierhttps://doi.org/10.1590/18069657rbcs20150466
dc.identifier.urihttp://hdl.handle.net/123456789/389253
dc.languageeng
dc.rightsopenAccess
dc.subjectÓleo de palma
dc.subjectNutrición de las plantas
dc.subjectDendê
dc.subjectPlanta Oleaginosa
dc.subjectNutrição vegetal
dc.subjectAdubação
dc.subjectElaeis Guineensis
dc.subjectPlant nutrition
dc.titleThe use of DRIS for nutritional diagnosis in oil palm in the State of Pará.
dc.typeArtigo de periódico

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