Prescient diagnostic analysis shows sufficiency range approach superior to DRIS for citrus

Beverly, R. B.

doi:10.1080/00103629209368762

Cited by 11 publications

(15 citation statements)

References 3 publications

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“…DRIS reveals to be an effective method for nutritional diagnosis in this study. Woods and Villiers ( 1992 ) , in a research work developed at South Africa, obtained well-succeeded DRIS results for 'Valencia' sweet orange, in disagreement with the results reported by Beverly ( 1992 ) . Those authors observed good correlation between yield (kg tree −1…”

Section: Leaf Analysis-based Normscontrasting

confidence: 54%

“…The diagnosis resulted similar to the one obtained by DRIS or SRA, but provided more precise recommendations when evaluated by fi eld tests. After this work, new researches involving data collecting during fi ve more years revealed that SRA could be more advantageous than DRIS for 'Valencia' sweet orange (Beverly 1992 ) . The author compared SRA, DRIS, and three modi fi cations of DRIS.…”

Section: Leaf Analysis-based Normsmentioning

confidence: 99%

See 1 more Smart Citation

Leaf Analysis in Citrus: Interpretation Tools

Menino¹

2012

Advances in Citrus Nutrition

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Section: Leaf Analysis-based Normscontrasting

confidence: 54%

Section: Leaf Analysis-based Normsmentioning

confidence: 99%

Leaf Analysis in Citrus: Interpretation Tools

Menino¹

2012

Advances in Citrus Nutrition

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“…DRIS was an effective method for nutritional diagnosis in this study. Woods & Villiers (1992), in research works developed at South Africa, obtained well succeeded DRIS results for 'Valencia' sweet orange, in disagreement with the results reported by Beverly (1992). Those authors observed good correlation between yield (kg plant -1…”

Section: -Application Of Dris Methods To Fruit Cropscontrasting

confidence: 45%

“…The diagnosis resulted similar to the one obtained by DRIS or SRA, but provided more precise recommendations when evaluated by field tests. After this work, new researches involving data collecting during five more years revealed that SRA could be more advantageous than DRIS for 'Valencia' sweet orange (Beverly, 1992). The author compared SRA, DRIS and three modifications of DRIS.…”

Section: -Application Of Dris Methods To Fruit Cropsmentioning

confidence: 99%

DRIS: concepts and applications on nutritional diagnosis in fruit crops

Filho¹

2004

Sci. agric. (Piracicaba, Braz.)

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Nutrition and fertilization are important factors in determining fruit yield and fruit quality. There are several methods for plant nutritional status diagnosis, among them, two are relevant and named as Sufficiency Range Approach (SRA) and Diagnosis and Recommendation Integrated System (DRIS). This research reports the main concepts and applications of DRIS in nutritional diagnosis of fruit crops, comparing it with current nutritional diagnosis methods, indicating advantages and disadvantages, and possible limitations to be investigated. Key words: foliar analysis, fruit crops, mineral nutrition DRIS: CONCEITOS E APLICAÇÕES NA DIAGNOSE NUTRICIONAL EM PLANTAS FRUTÍFERASRESUMO: A nutrição e a adubação são fatores determinantes na produtividade dos pomares e na qualidade de frutos. Dentre os diversos métodos de diagnose nutricional das plantas, destacam-se o critério de faixas de suficiência (CFS) e o sistema integrado de diagnose e recomendação (DRIS -"Diagnosis and Recommendation Integrated System"). São relatados neste trabalho os principais conceitos e aplicações do método DRIS na diagnose nutricional em fruteiras, comparando-o com os sistemas atuais de diagnose nutricional, apontando vantagens e desvantagens, e possíveis limitações a serem investigadas. Palavras-chave: análise foliar, fruticultura, nutrição mineral

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“…Pesquisas realizadas nos Estados Unidos, África do Sul, Espanha e Venezuela relatam investigações sobre DRIS em citros (Wallace, 1990;Beverly, 1992;Woods & Villiers, 1992;Cerda et al, 1995;Moreno et al, 1996;Rodriguez et al, 1997). No Brasil, Bataglia (1989) ressaltou que esse método pode ser uma alternativa para a diagnose nutricional de citros, mas que deve ser utilizado em conjunto com os demais critérios de diagnose.…”

Section: Introductionunclassified

Funções e ordem da razão dos nutrientes no estabelecimento de normas DRIS em laranjeira 'Valência'

Filho¹,

Azevedo²,

Nick³

2002

Pesq. agropec. bras.

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Resumo O sistema integrado de diagnose e recomendação DRIS (Diagnosis and Recommendation Integrated System) tem sido uma boa alternativa para a avaliação do estado nutricional de diversas culturas. O objetivo deste trabalho foi calcular índices DRIS mediante o uso de três métodos (Beaufils, Elwali & Gascho e Jones) de cálculo das funções das razões dos nutrientes e de dois critérios (Letzch e Nick) para a escolha da ordem da razão dos nutrientes, em pomares comerciais irrigados de laranjeira Valência . Informações sobre a produtividade, porta-enxerto e teor de N, P, K, Ca, Mg, S, Fe, Mn, Cu, Zn e B em folhas de ramos não-frutíferos de cada talhão foram processadas nos anos de 1994 a 1998. O índice de balanço nutricional (IBN) foi calculado pela média da soma dos valores em módulo dos índices nutricionais e do índice de matéria seca. Os índices DRIS e IBN foram calculados e os valores de r 2 (produtividade em função de IBN) foram obtidos para cada método. O método Jones para cálculo do DRIS apresentou melhor correlação com a produtividade, e o critério Nick mostrou-se mais eficiente na escolha da ordem da razão dos nutrientes. Populações específicas, com pequeno número de observações, padronizadas quanto ao porta-enxerto e referentes a um ou dois anos de amostragem foliar e produção foram bancos de dados eficientes para a obtenção das normas DRIS.Termos para indexação: Citrus sinensis, diagnose foliar, equilíbrio de nutrientes, estado nutricional, método de análise. Functions and ratio order of the nutrients at the establishment of DRIS norms in Valencia sweet orangeAbstract Diagnosis and Recommendation Integrated System (DRIS) has been a useful tool for nutrient diagnosis of several crops. This research aimed to establish adequate norms for DRIS through three methods (Beaufils, Elwali & Gascho and Jones) to calculate ratio functions and two criteria (Letzsch and Nick) for choosing the ratio order of the nutrients for Valencia sweet orange budded on three rootstocks, in Mogi Guaçú, SP, Brazil. Data referred to yield, rootstock and concentrations of N, P, K, Ca, Mg, S, Fe, Mn, Cu, Zn and B in leaves of non fruiting terminals, for each plot, were processed for 1994 through 1998. Nutritional Balance Index (NBI) was calculated by the average of the sum (disregarding the sign) of all nutritional index values and dry matter index. DRIS and NBI indexes were calculated and the r 2 values (yield related to NBI) were obtained for each calculation method. DRIS calculation method of the ratio function, recommended by Jones, presented better correlation with yield. The criterion for choosing the ratio order of the nutrients recommended by Nick was more efficient. Specific populations, with reduced number of observations, standardized by rootstock and referred to one or two sampling years were more efficient data for calculation of DRIS norms.

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Prescient diagnostic analysis shows sufficiency range approach superior to DRIS for citrus

Cited by 11 publications

References 3 publications

Leaf Analysis in Citrus: Interpretation Tools

Leaf Analysis in Citrus: Interpretation Tools

DRIS: concepts and applications on nutritional diagnosis in fruit crops

Funções e ordem da razão dos nutrientes no estabelecimento de normas DRIS em laranjeira 'Valência'

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