

Registro Completo 
Biblioteca(s): 
Embrapa Uva e Vinho. 
Data corrente: 
20/06/2007 
Data da última atualização: 
13/04/2019 
Tipo da produção científica: 
Artigo em Periódico Indexado 
Autoria: 
NACHTIGALL, G. R.; DECHEN, A. R. 
Afiliação: 
GILMAR RIBEIRO NACHTIGALL, CNPUV; Antonio Roque Dechen, USP/ESALQ. 
Título: 
DRIS norms for evaluating the nutritional state of apple tree. 
Ano de publicação: 
2007 
Fonte/Imprenta: 
Scientia Agricola, Piracicaba, v. 64, n. 3, p. 282287, 2007. 
Idioma: 
Inglês 
Conteúdo: 
ABSTRACT: For Brazilian conditions there are still no studies on the use of the diagnosis and recommendation of the integrated system (DRIS) for nutritional diagnosis of the apple tree. The nutritional diagnosis of the apple tree is made using the criterion of sufficiency range. The aim of this report is to establish DRIS norms to interpret the results of apple tree leaf analysis in South Brazil. The study covered the apple producing areas of the states of Rio Grande do Sul and Santa Catarina, in 70 orchards selected for their high productivity and employment of excellent management techniques. The concentrations of nitrogen, phosphorus, potassium, calcium, magnesium, boron, copper, iron, manganese, and zinc were determined in leaf samples. DRIS indices were calculated using two criteria for the choice of the ratio order of nutrients (F value  ratio of the variance of the relationships among nutrients between the reference group and the low productivity group, and R value  correlation coefficients between the productivity values and the relationship between pairs of nutrients) and three forms to calculate the nutrient functions (methods of Beaufils, Jones and Elwali & Gascho). The two criteria for the choice of the ratio order of the nutrients selected different ratios. The concentrations of nutrients presented positive correlations (P < 0.01) with the respective indices DRIS, except for N. The defined DRIS norms are applicable for the nutritional diagnosis of apple trees. Key words: Malus Domestica, DRIS norms, foliar diagnosis MenosABSTRACT: For Brazilian conditions there are still no studies on the use of the diagnosis and recommendation of the integrated system (DRIS) for nutritional diagnosis of the apple tree. The nutritional diagnosis of the apple tree is made using the criterion of sufficiency range. The aim of this report is to establish DRIS norms to interpret the results of apple tree leaf analysis in South Brazil. The study covered the apple producing areas of the states of Rio Grande do Sul and Santa Catarina, in 70 orchards selected for their high productivity and employment of excellent management techniques. The concentrations of nitrogen, phosphorus, potassium, calcium, magnesium, boron, copper, iron, manganese, and zinc were determined in leaf samples. DRIS indices were calculated using two criteria for the choice of the ratio order of nutrients (F value  ratio of the variance of the relationships among nutrients between the reference group and the low productivity group, and R value  correlation coefficients between the productivity values and the relationship between pairs of nutrients) and three forms to calculate the nutrient functions (methods of Beaufils, Jones and Elwali & Gascho). The two criteria for the choice of the ratio order of the nutrients selected different ratios. The concentrations of nutrients presented positive correlations (P < 0.01) with the respective indices DRIS, except for N. The defined DRIS norms are applicable for the nutritional diagnosis of apple trees.... Mostrar Tudo 
PalavrasChave: 
Diagnose foliar; DRIS. 
Thesagro: 
Fruticultura; Maçã. 
Categoria do assunto: 
 
URL: 
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/195824/1/sCIENTIAsGRICOLAnsCTIGAL.pdf

Marc: 
LEADER 02065naa a2200181 a 4500 001 1541790 005 20190413 008 2007 bl uuuu u00u1 u #d 100 1 $aNACHTIGALL, G. R. 245 $aDRIS norms for evaluating the nutritional state of apple tree.$h[electronic resource] 260 $c2007 520 $aABSTRACT: For Brazilian conditions there are still no studies on the use of the diagnosis and recommendation of the integrated system (DRIS) for nutritional diagnosis of the apple tree. The nutritional diagnosis of the apple tree is made using the criterion of sufficiency range. The aim of this report is to establish DRIS norms to interpret the results of apple tree leaf analysis in South Brazil. The study covered the apple producing areas of the states of Rio Grande do Sul and Santa Catarina, in 70 orchards selected for their high productivity and employment of excellent management techniques. The concentrations of nitrogen, phosphorus, potassium, calcium, magnesium, boron, copper, iron, manganese, and zinc were determined in leaf samples. DRIS indices were calculated using two criteria for the choice of the ratio order of nutrients (F value  ratio of the variance of the relationships among nutrients between the reference group and the low productivity group, and R value  correlation coefficients between the productivity values and the relationship between pairs of nutrients) and three forms to calculate the nutrient functions (methods of Beaufils, Jones and Elwali & Gascho). The two criteria for the choice of the ratio order of the nutrients selected different ratios. The concentrations of nutrients presented positive correlations (P < 0.01) with the respective indices DRIS, except for N. The defined DRIS norms are applicable for the nutritional diagnosis of apple trees. Key words: Malus Domestica, DRIS norms, foliar diagnosis 650 $aFruticultura 650 $aMaçã 653 $aDiagnose foliar 653 $aDRIS 700 1 $aDECHEN, A. R. 773 $tScientia Agricola, Piracicaba$gv. 64, n. 3, p. 282287, 2007.
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Registro original: 
Embrapa Uva e Vinho (CNPUV) 

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