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| Dezordi,Luciel Rauni; Aquino,Leonardo Angelo de; Aquino,Rosiane Filomena Batista de Almeida; Clemente,Junia Maria; Assunção,Natália Silva. |
| ABSTRACT Leaf analysis may identify nutrient deficiency or excess in plant tissue. The aim of this study was to determine reference values and generate nutritional diagnosis from the results of leaf analysis of the carrot crop (Daucus carota L.) by the methods of Critical Level, Sufficiency Range, Diagnosis and Recommendation Integrated System, and Compositional Nutrient Diagnosis. Contents of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn were determined in 210 carrot fields in the 2012 and 2013 crop seasons in the Alto Paranaíba region, MG, Brazil. The whole plant shoot was sampled at harvest time to generate reference values for diagnosis. The high yielding subpopulation showed yield higher than 87.8 Mg ha-1. The four diagnostic methods generated similar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota L.; Leaf critical level; DRIS; CND. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100517 |
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| Oliveira,Cibelle Tamiris de; Rozane,Danilo Eduardo; Amorim,Daniel Angelucci de; Souza,Henrique Antunes de; Fernandes,Beatrice Santana; Natale,William. |
| Abstract The present study aimed to compare the use of leaf and flower analysis and to verify the most appropriate organ for the diagnosis of the nutritional status of guava trees. The evaluation was carried out using the CND (Compositional Nutrient Diagnosis) methodology, using yield and nutritional contents of the leaf and flower of ‘Paluma’ guava trees in 48 plots of an irrigated orchard. The contents of flower and leaf nutrients were submitted to variance analysis, by the Tukey test at 5%, and the nutrient sufficiency ranges in organs were calculated, as well as the correlations between multi-nutrient variables and yield. Significant differences between contents of nutrients in flower and leaf, as well as greater variability in the nutritional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium guajava; Nutritional status assessment; Tissue analysis; CND. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000303001 |
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