Title:	Identification of the critical levels, sufficiency ranges and potential response to nutrient fertilization in vineyards by the DRIS method.
Authors:	MELO, G. W. B. de ROZANE, D. E. BRUNETTO, G.
Affiliation:	GEORGE WELLINGTON BASTOS DE MELO, CNPUV D.E. Rozane, Universidade Estadual Paulista “Ju?lio de Mesquita Filho”, Registro, Sa?o Paulo, Brazil G. Brunetto, University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
Date Issued:	2018
Citation:	Acta Horticulturae, v. 1217, p. 423-429, 2018. Publicado no ISHS Acta Horticulturae 1217: VIII International Symposium on Mineral Nutrition of Fruit Crops, 2018.
Description:	Brazil is a significant global grape producer (Vitis spp.). The state of Rio Grande do Sul produces 59% of the national output. Despite the large national production, the grapevine has not yet been tested sufficiently to obtain data from long-term experiments in both production as well as suitable nutritional management. The DRIS method is one of the useful tools required to assess plant quality. The normal nutrient ranges were determined from 63 commercial fields, in order to interpret the concentrations of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn in the culture through statistical analysis and regression. The DRIS indices were related to the respective contents present in the leaf dry matter samples collected during the veraison and opposite to the first bunch of the fruiting branch. Although the general index of the nutritional balance of the DRIS did not permit the establishment of a relationship with productivity, it enabled, based on the standards, the determination of the normal ranges for the nutrients evaluated. The results were in accordance with those reported in the literature. The potential response to fertilization was proven ineffective as an interpretive methodology. Keywords: Vitis spp., mineral nutrition, foliar diagnosis, nutritional balance
NAL Thesaurus:	Grapes
Keywords:	Vitis spp Mineral nutrition Foliar diagnosis Nutritional balance Grape producer
Notes:	Projeto Fapergs: Desenvolvimento de software para avaliação da composição nutricional do pessegueiro cultivado na região da Serra Gaúcha Número do processo: 1244-2551/15-4
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPUV)