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	Provedor de dados Rev. Bras. Frutic. (2) Autor Parent,Léon-Étienne (2) Deland,Jean-Pierre (1) Marchand,Sébastien (1) Parent,Serge-Étienne (1) Palavra-chave Aitchison distance (2) Compositional Nutrient Diagnosis (CND) (2) Centred log ratio (CND-clr) (1) Diagnosis and Recommendation Integrated System (DRIS) (1) Isometric log ratio (CND-ilr) (1) Isometric log ratio (ilr) (1) Mahalanobis distance (1) Nutrient balance ranges (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2013 (1) 2011 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Nutrient signature of Quebec (Canada) cranberry (Vaccinium macrocarpon Ait.) Rev. Bras. Frutic. Marchand,Sébastien; Parent,Serge-Étienne; Deland,Jean-Pierre; Parent,Léon-Étienne. Fertilizer recommendations for cranberry crops are guided by plant and soil tests. However, critical tissue concentration ranges used for diagnostic purposes are inherently biased by nutrient interactions and physiological age. Compositional data analysis using isometric log ratios (ilr) of nutrients as well as time detrending can avoid numerical biases. The objective was to derive unbiased nutrient signature standards for cranberry in Quebec and compare those standards to literature data. Field trials were conducted during 3 consecutive years with varying P treatments at six commercial sites in Quebec. Leaf tissues were analyzed for N, P, K, Ca, Mg, B, Cu, Zn, Mn and Fe. The analytical results were transformed into ilr nutrient balances of parts and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Compositional Nutrient Diagnosis (CND); Isometric log ratio (ilr); Aitchison distance; Nutrient balance ranges. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000100034 Diagnosis of the nutrient compositional space of fruit crops Rev. Bras. Frutic. Parent,Léon-Étienne. Tissue analysis is a useful tool for the nutrient management of fruit orchards. The mineral composition of diagnostic tissues expressed as nutrient concentration on a dry weight basis has long been used to assess the status of 'pure' nutrients. When nutrients are mixed and interact in plant tissues, their proportions or concentrations change relatively to each other as a result of synergism, antagonism, or neutrality, hence producing resonance within the closed space of tissue composition. Ternary diagrams and nutrient ratios are early representations of interacting nutrients in the compositional space. Dual and multiple interactions were integrated by the Diagnosis and Recommendation Integrated System (DRIS) into nutrient indexes and by Compositional... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diagnosis and Recommendation Integrated System (DRIS); Compositional Nutrient Diagnosis (CND); Centred log ratio (CND-clr); Isometric log ratio (CND-ilr); Aitchison distance; Mahalanobis distance. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000100041 Registros recuperados: 2 Primeira ... 1 ... Última

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