Data/hora: 09/05/2024 04:15:41

Biblioteca(s): 	Embrapa Acre.	
Data corrente: 	07/11/2005	
Data da última atualização: 	28/06/2021	
Autoria: 	WADT, L. H. de O.	
Afiliação: 	LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC.	
Título: 	Nutritional status of Eucalyptus grandis clones evaluated by critical level and DRIS methods.	
Ano de publicação: 	2004	
Fonte/Imprenta: 	Revista Árvore, Viçosa, MG, v. 28, n. 1, p. 15-20, 2004.	
ISSN: 	0100-6762 (impresso) / 1806-9088 (online)	
DOI: 	10.1590/S0100-67622004000100003	
Idioma: 	Português	
Conteúdo: 	Nutritional status of eight 1.0 and 4.7 years old clones of Eucalyptus grandis, cultivated in a medium textured Ustults - US - and a Quartzipsamments - PS - soils, in Lençóis Paulista, São Paulo, were evaluated by the Diagnosis and Recommendation Integrated System (DRIS) and Critical Level (CL) methods. Based on multivariate discriminant analysis, the DRIS indices described the nutritional status of trees better in relation to tree age and soil type than in relation to nutrient composition. Spearman's correlation coefficients showed statistically significant relationships between volumetric tree growth and nutrients when applying DRIS indices or foliar nutrient concentrations. However, the DRIS indices indicated a lower number of trees with nutritional deficiencies, in relation to the CL method. According to the CL method, P, S, and Ca were deficient in the majority of the soils and tree age categories. By the DRIS method, Ca was the only deficient nutrient in PS soils, and appeared to be particularly limited in one-year-old trees. In conclusion, the DRIS method was more efficient than the CL method in evaluating the nutritional status of eucalyptus trees.	
Palavras-Chave: 	Análise multivariada; Análisis de multivarianza; CL method; DRIS method; Estatus nutricional; Método do Nível Crítico; Método DRIS; Nutrición de las plantas.	
Thesagro: 	Eucalipto; Eucalyptus grandis; Método estatístico; Nutrição vegetal.	
Thesaurus Nal: 	Multivariate analysis; Nutritional status; Plant nutrition.	
Categoria do assunto: 	X Pesquisa, Tecnologia e Engenharia	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/111849/1/11712.pdf	
Registro original: 	Embrapa Acre (CPAF-AC)	
Exemplares: 	CPAF-AC - (11712-1) - UPC - AP - PP - SP 032 -  - 2005.02866 - DES
CPAF-AC - (11712-2) - UPC - AP - DD -  -  -  - DIS