Estabelecimento de normas DRIS e diagnóstico nutricional do cafeeiro arábica na região noroeste do Estado do Rio de Janeiro

Barbosa, Dimmy Herllen Silveira Gomes; Vieira, Henrique Duarte; Partelli, Fábio Luiz; Souza, Ricardo Moreira

doi:10.1590/s0103-84782006000600008

Cited by 13 publications

(10 citation statements)

References 9 publications

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“…Carvalho et al (2005), in a nutritional diagnosis of coffee plantations in Manhuaçu -MG, also found that Fe and Mn occurred more frequently with more positive indices. Similar results were reported by Barbosa et al (2006), studying Arabic coffee in northwestern Rio de Janeiro, where Fe and Mn were the nutrients that occurred with more positive indices, i.e., in excess.…”

Section: Resultssupporting

confidence: 88%

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Spatial variability in nutritional status of arabic coffee based on dris index

Silva¹,

Lima²,

Queiroz³

2011

Rev. Ceres

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RESUMO Variabilidade espacial do estado nutricional de variedades de café arábica com base no índice DRISA utilização conjunta da agricultura de precisão e do Sistema Integrado de Diagnose e Recomendação (DRIS) permite o monitoramento espacial do balanço nutricional dos cafezais, proporcionando recomendações de adubações mais equilibradas e economicamente mais ajustadas. Por essa razão, este trabalho foi desenvolvido com o objetivo de avaliar a variabilidade espacial do estado nutricional de duas variedades de café arábica, por meio do índice de balanço nutricional, fornecido pelo DRIS, e sua relação com as respectivas produtividades. O experimento foi desenvolvido no leste de Minas Gerais, em duas áreas, sendo, uma, cultivada com a variedade Catucaí e, outra, com Catuaí. O IBNm das duas variedades, bem como suas produtividades, foram analisados por meio da geoestatística e, com base nos modelos e parâmetros dos variogramas, foram interpolados para obter sua distribuição espacial. A variedade Catucaí, com maior variabilidade espacial, encontra-se em maior desequilíbrio nutricional que a variedade Catuaí, e, consequentemente, com menor produtividade, sendo que os nutrientes Fe e Mn, por causa do seu excesso, são os mais limitantes.Palavras-chave: Produtividade, agricultura de precisão, geoestatística, análise foliar. Spatial variability in nutritional status of arabic coffee based on dris indexThe combined use of precision agriculture and the Diagnosis and Recommendation Integrated System (DRIS) allows the spatial monitoring of coffee nutrient balance to provide more balanced and cost-effective fertilizer recommendations.The objective of this work was to evaluate the spatial variability in the nutritional status of two coffee varieties using the Mean Nutritional Balance Index (NBIm) and its relationship with their respective yields. The experiment was conducted in eastern Minas Gerais in two areas, one planted with variety Catucaí and another with variety Catuaí. The NBIm of the two varieties and their yields were analyzed through geostatistics and, based on the models and parameters of the variograms, were interpolated to obtain their spatial distribution in the studied areas. Variety Catucai, with grater spatial variability, was more nutritional unbalanced than variety Catuai, and consequently produced lower yields. Excess of Fe and Mn makes these elements limiting yield factors.

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Section: Resultssupporting

confidence: 88%

“…Calculation of DRIS indices was based on the general formula proposed by Beaufils (1973), according to Silva et al (2003), Bataglia et al (2004) and Barbosa et al (2006), where for a nutrient Y:…”

Section: Methodsmentioning

confidence: 99%

Spatial variability in nutritional status of arabic coffee based on dris index

Silva¹,

Lima²,

Queiroz³

2011

Rev. Ceres

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“…In the database containing the content of each nutrient and the yield of reference subpopulations (satisfactory yield), the Lilliefors test (p<0.05) was applied according to Barbosa et al (2006), for verification of normality. From that, the following stands were selected:…”

Section: Methodsmentioning

confidence: 99%

The Use of DRIS for Nutritional Diagnosis in Oil Palm in the State of Pará

Matos

Fernandes

Wadt

et al. 2017

Rev. Bras. Ciênc. Solo

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ABSTRACT:The oil palm crop has expanded significantly in the state of Pará, which has not been followed in a proportional manner by studies aiming at increasing yield through plant nutrition. The objective of this study was to evaluate general and specific norms of the Diagnosis and Recommendation Integrated System (DRIS) for genetic materials of oil palm (African and interspecific hybrid) at two ages (young and adult plants) and evaluate possible deficiencies in fertilization and soil correction practices. The DRIS norms were composed of means, standard deviations, and coefficients of variation of bivariate, specific, and general relationships among nutrients of 144 leaf samples. The DRIS norms specific for genetic material did not differ from the general norms; however, a large number of differences were found between specific bivariate relationships for age groups, among themselves, and in relation to the general norms. The regression analysis between the nutritional balance index and yield were better explained when age groups were discriminated. In the young plants, the number of cases of stands with deficiencies followed the order Ca > Fe > B > S > Mn > K > Mg = Cu > Zn > N > P; and for adults, this order was Ca > Mn > Zn > Fe > S = B > N = Cu > K > Mg > P. The DRIS norms can be utilized in diagnostics regardless of genetic material; however, they must be specified for the age of the plant. Most of the stands showed deficiency in Ca and micronutrients, coinciding with the least used nutrients in oil palm crops in the state of Pará, as well as emphasizing the need for soil liming.

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“…A definição adotada para o grupo de referência tende a incluir palmitais como de alto potencial produtivo (com base na frequência de cortes por ano) e também palmitais com produtividade mediana, desde que com aspecto sanitário satisfatório adequado, o que corresponde parcialmente à proposta original de Beaufils Tabela 1 -Média, coeficiente de variação, desvio padrão e valores máximos e mínimos de macro e micronutrientes em folhas de pupunheira cultivadas em diferentes condições de manejo na região Sul-Ocidental da Amazônia, em duas safras consecutivas Barbosa et al (2006), em café arábica cultivado na região noroeste do Estado do Rio de Janeiro, no qual os coeficientes de variação foram superiores a 25% para os micronutrientes e inferiores a 25% para os macronutrientes. É importante destacar que quanto maior o valor do CV maior será a amplitude da relação nutricional bivariada, consequentemente, menor o peso da respectiva função DRIS na definição do índice DRIS do nutriente e, assim, menor será sua capacidade de prever desequilíbrios nutricionais (WADT; DIAS, 2012).…”

Section: Resultsunclassified

Normas DRIS preliminares para pupunheira cultivada em diferentes sistemas de manejo na região sul-ocidental da Amazônia

Azevedo

Wadt

Pérez

et al. 2016

AGRO@MBIENTE ON-LINE

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Resumo: A pupunheira, uma frutífera nativa da América Central e da Floresta Amazônica, vem sendo cultivada para produção de frutos e extração de palmito. Objetivou-se com o presente trabalho estabelecer os valores de referência, pelo DRIS, para palmitais de pupunheira cultivada em monocultivo e em sistemas agroflorestais (SAFs). Foram monitorados 81 palmitais em dois anos consecutivos, totalizando 162 amostras foliares compostas. As amostragens foram realizadas de novembro a dezembro dos anos de 2012 e 2013. Os palmitais foram classificados em três grupos para a produção das normas DRIS: i) pupunheiras cultivadas em monocultivo; ii) pupunheiras cultivadas em SAFs e iii) pupunheiras cultivadas em ambos sistemas de produção. Os índices DRIS foram calculados pela fórmula de Jones com transformação logarítmica. Os palmitais foram a seguir classificados pelo método do potencial de resposta à adubação, quanto ao estado nutricional, em insuficiente, balanceado e em excesso, para cada uma das normas DRIS obtidas. Para a maioria dos casos, o estado nutricional obtido pelas normas específicas foram os mesmos que aqueles obtidos pela norma genérica. O uso de normas genéricas resulta em diagnósticos semelhantes aos obtidos com normas específicas, podendo ser recomendado para avaliar o estado nutricional de pupunheiras, produzidas em diferentes condições de manejo. Palavras-chave:Bactris gasipaes. Diagnose Foliar. Estado Nutricional. Abstract:The peach palm, a native fruit of Central America and the Amazon rainforest, is cultivated for fruit production and extraction of palm hearts. The aim of this study was to establish reference values using DRIS, in groves of the peach palm grown in as a monocrop and under agroforestry systems (AFS). Eighty-one palm groves were monitored for two consecutive years, giving a total of 162 composite leaf samples. Samples were taken from November to December of 2012 and 2013. The palm groves were classified into three groups for production of the DRIS: i) peach palm grown as a monocrop; ii) peach palm grown under AFS and iii) peach palm grown under both systems of production. DRIS indices were calculated with the Jones formula using logarithmic transformation. The groves were then classified by the method of fertilisation response potential, as regards a nutrient status of insufficient, balanced and excessive, for each of the resulting DRIS norms. For most cases, the nutrient status obtained with specific norms were the same as those obtained with the generic norm. The use of generic norms results in diagnoses, which are similar to those obtained with specific norms, and can be recommended for evaluating the nutrient status of peach palms produced under different management systems.

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Estabelecimento de normas DRIS e diagnóstico nutricional do cafeeiro arábica na região noroeste do Estado do Rio de Janeiro

Cited by 13 publications

References 9 publications

Spatial variability in nutritional status of arabic coffee based on dris index

Spatial variability in nutritional status of arabic coffee based on dris index

The Use of DRIS for Nutritional Diagnosis in Oil Palm in the State of Pará

Normas DRIS preliminares para pupunheira cultivada em diferentes sistemas de manejo na região sul-ocidental da Amazônia

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