02213naa a2200325 a 450000100080000000500110000800800410001902200460006002400410010610000220014724501210016926000090029052011820029965000260148165000230150765000200153065000140155065000230156465000250158765000230161265300260163565300310166165300140169265300160170665300240172265300310174665300170177765300300179477300630182415028602021-06-28       2004    bl uuuu     u00u1 u    #d  a0100-6762 (impresso) / 1806-9088 (online)7 a10.1590/S0100-676220040001000032DOI1 aWADT, L. H. de O.  aNutritional status of Eucalyptus grandis clones evaluated by critical level and DRIS methods.h[electronic resource]  c2004  aNutritional 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.  aMultivariate analysis  aNutritional status  aPlant nutrition  aEucalipto  aEucalyptus grandis  aMétodo estatístico  aNutrição vegetal  aAnálise multivariada  aAnálisis de multivarianza  aCL method  aDRIS method  aEstatus nutricional  aMétodo do Nível Crítico  aMétodo DRIS  aNutrición de las plantas  tRevista Árvore, Viçosa, MGgv. 28, n. 1, p. 15-20, 2004.