Estabelecimento de normas DRIS para o algodoeiro com diferentes critérios de seleção da população de referência

Serra, Ademar Pereira; Marchetti, Marlene Estevão; Rojas, Enrique Pouyú; Morais, Henrique Soares de

doi:10.1590/s0100-204x2013001100008

Cited by 10 publications

(10 citation statements)

References 19 publications

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“…Despite being used by a number of authors as the criterion for selecting guidelines [29][30][31][32], the ratio between yield and NBIm may not necessarily reflect good performance by the method, due to the high correlation between yield and the NBIm [33]. However, the fact that high and low yields occurred for low NBIm values indicates that factors other than nutrition affect yield.…”

Section: Discussionmentioning

confidence: 99%

Efficiency of the CL, DRIS and CND Methods in Assessing the Nutritional Status of Eucalyptus spp. Rooted Cuttings

Morais

Prado

Traspadini

et al. 2019

Forests

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The efficiency of methods in adequately interpreting the nutritional status of Eucalyptus spp. rooted cuttings remains unknown. The aim was to evaluate the quality of diagnoses obtained using the critical level (CL), diagnosis and recommendation integrated system (DRIS) and compositional nutrient diagnosis (CND) methods to assess the nutritional status of Eucalyptus spp. rooted cuttings, based on two different yield indicators. The data were obtained from commercial nursery and calibration experiments, using seven nutrients as treatments (N, P, K, Mg, Ca, B and Fe) and four concentrations per nutrient, arranged in randomized blocks, with four repetitions. The Eucalyptus spp. clone used in the experiments was AEC 0144. A total of 222 rooted cuttings were obtained from the experimental area and commercial nurseries and the following were determined: leaf nutrient content, whole plant dry matter (DM) content and the Dickson quality index (DQI). Diagnostic accuracy in the experimental plots was ascertained by comparing the diagnosis with plant response as a function of adding the corresponding nutrient. Five measures of accuracy were used to test the efficiency of the diagnostic methods: total accuracy, accuracy for deficiency and sufficiency, deficiency ratio, efficiency ratio, and the net increase in in DM and DQI. The performance of diagnostic methods varied between CL, DRIS and CND, and among the nutrients studied. Given that the seedling production system is largely more controlled, where environmental variations are minimal, and considering that the different diagnostic methods exhibited distinct performance in terms of assessing the true nutritional status of eucalyptus rooted cuttings, the CL method is the most indicated for this situation, due to its better performance in evaluating the nutritional status of most nutrients and easy implementation.

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Section: Discussionmentioning

confidence: 99%

Efficiency of the CL, DRIS and CND Methods in Assessing the Nutritional Status of Eucalyptus spp. Rooted Cuttings

Morais

Prado

Traspadini

et al. 2019

Forests

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“…After the establishment of DRIS norms, DRIS-I, NBI, and mNBI indices are applied to identify deficiencies, excesses, or nutritional balance of macronutrients (N, P, K, Ca, Mg, S) and micronutrients (Fe, Mn, Zn, Cu, Mo, B) in leaf tissue. The results of these studies have been applied mainly in Brazil, in crops of wide commercial interest such as cotton, banana, soybean, potato, cacao, and sugarcane (Araújo et al, 2019;Dos Santos et al, 2019;Oliveira et al, 2019;Pereira et al, 2013;Pereira & Justino, 2021;Rodrigues-Filho et al, 2021), and in other agricultural species, including beans, garlic, carrots, atemoya, and cactus pear (Table I).…”

Section: A Nutrient Balance In Leaf Tissuementioning

confidence: 99%

Sistema Integrado de Diagnóstico y Recomendación, su aplicación y utilidad en la agricultura. Una Revisión

Carvajal

Álvarez

Gutiérrez³

2021

Cien. Agri.

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El equilibrio de nutrientes determina el rendimiento y calidad de los cultivos. El Sistema Integrado de Diagnóstico y Recomendación-DRIS propone un análisis holístico sobre la base de la interrelación entre nutrientes, compara las proporciones de los elementos minerales de los cultivos con valores óptimos conocidos como normas DRIS e identifica desequilibrios, deficiencias y/o excesos en los nutrientes de la planta para clasificarlos por orden de importancia. Existen trabajos de revisión científica orientados al desarrollo de propuestas metodológicas para obtención de las normas DRIS en diversos cultivos y el cálculo de sus respectivos índices, pero, estos no dilucidan las funcionalidades reales de este sistema de diagnóstico; por lo tanto, la siguiente revisión tiene como objetivo, dar a conocer las aplicaciones y utilidades del DRIS en la agricultura a nivel mundial desarrolladas durante los últimos 10 años. Considerando lo anteriormente expuesto los estudios científicos sugieren: balance de nutrientes en tejido foliar y suelo, dinámica de elementos minerales según etapa fenológica, niveles críticos y rangos de suficiencia, relación suelo-planta, balance nutricional por uso de fertilizantes y abonos verdes, variabilidad espacial y DRIS, translocación de metales pesados, nutrición e incidencia de problemas fitosanitarios, fitotoxicidad en plantas irrigadas con aguas residuales de riego agrícola, Rangos de Suficiencia en tejido foliar bajo condiciones salinas, análisis de savia y normas DRIS en semillas. El DRIS es una herramienta para el diagnóstico nutricional, susceptible de validación en los sistemas agrícolas a nivel mundial.

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“…Among these 66 relations, 27 presented significant differences between S 2 b /S 2 a . The method of ratios between variances favors the choice of relations with lower variance in the HYP (SERRA et al, 2013). These relations included Cu (8 relations), P (7 relations), Mn and S (6 relations), Ca and Zn (5 relations), K and Mg (4 relations), Na (2 relations), and N (1 relation).…”

Section: Resultsmentioning

confidence: 99%

“…The ratio between the variances in low-yield (LYP) and high yield (HYP) populations has usually been used to choose the relation form to be used. Different criteria can be used to define the reference population and can result in different norms and efficacies (SERRA et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Establishment of Dris Norms for Cactus Pear Grown Under Organic Fertilization in Semiarid Conditions

et al. 2019

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The objective of this work was to establish DRIS norms for evaluation of nutritional status of cactos pear of the Gigante cultivar grown under organic fertilization in semiarid conditions. Cladode macro and micronutrient contents and dry matter yield of 72 plots were evaluated. The experiment was conducted in a randomized block design with three replicates, using a 4×3×2 factorial arrangement consisted of four bovine manure rates (0, 30, 60, and 90 Mg ha-1 ano-1), three spacings (1.00×0.50, 2.00×0.25, and 3.00×1.00×0.25 m), and two production cycles (600 and 930 days). The data were separated into high-yield population (HYP) and low-yield population (LYP), above and below 19.93 Mg ha-1 cycle-1, respectively. The mean, standard deviation, coefficient of variation, variances, and variance ratios of all bivariate relations between nutrients were calculated for the establishment of DRIS norms, considering the direct (A/B) and reverse (B/A) form. The selection of direct and reverse relations between nutrients to compose the DRIS norms was based on the variance ratio between LYP and HYP (S2b/S2 a). The sixty-six relations between cladode nutrient contents that presented the higher ratios between the variances in the LYP and HYP (S2b/S2a) were chosen. The DRIS norms established make viable the use of leaf diagnosis as an evaluation method of nutritional status of cactos pear of the Gigante cultivar grown under organic fertilization in semiarid conditions.

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Estabelecimento de normas DRIS para o algodoeiro com diferentes critérios de seleção da população de referência

Cited by 10 publications

References 19 publications

Efficiency of the CL, DRIS and CND Methods in Assessing the Nutritional Status of Eucalyptus spp. Rooted Cuttings

Efficiency of the CL, DRIS and CND Methods in Assessing the Nutritional Status of Eucalyptus spp. Rooted Cuttings

Sistema Integrado de Diagnóstico y Recomendación, su aplicación y utilidad en la agricultura. Una Revisión

Establishment of Dris Norms for Cactus Pear Grown Under Organic Fertilization in Semiarid Conditions

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