Leaf Color Chart
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. NONDESTRUCTIVE ESTIMATION OF LEAF NUTRIENT CONCENTRATIONS IN EUCALYPTUS PLANTATIONS
ABSTRACT Determination of leaf nutrient concentrations is traditionally performed by carrying out destructive procedures, requiring laboratory chemical analysis, specialized equipment, and skilled labor. However, technological advances in recent years have now made it possible to analyze leaf nutrient concentrations using non-destructive methods such as leaf
CERNE. Publicado em: 09/09/2019
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2. Estimating foliar nitrogen in Eucalyptus using vegetation indexes
ABSTRACT Nitrogen (N) has commonly been applied in Eucalyptus stands in Brazil and it has a direct relation with biomass production and chlorophyll content. Foliar N concentrations are used to diagnose soil and plant fertility levels and to develop N fertilizer application rates. Normally, foliar N is obtained using destructive methods, but indirect analyses
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-04
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3. ESTIMATE OF NUTRITIONAL STATE OF FLOODED RICE / ESTIMATIVA DO ESTADO NUTRICIONAL DE ARROZ IRRIGADO POR ALAGAMENTO
The difficulty to predict the intensity of soil properties alterative by soil flooding frequently makes the interpretation of the soil analysis results inaccurate when considering nutrients availability to the plants. Complementary methods of soil analysis, as leaf tissue analysis, chlorophyll meter and the leaf color chart can be used in order to estimate p
Publicado em: 2007
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4. Características da planta, teores de nitrogênio na folha e produtividade de tubérculos de cultivares de batata em função de doses de nitrogênio / Plant characteristics, leaf nitrogen contents and tuber yield of potato cultivars in function of nitrogen rates
This study was carried out to evaluate the effects of nitrogen (N) rates on tuber yield and on the following variables measured on the fourth leaf of potato (Solanum tuberosum) cultivars: green intensity (determined by SPAD index and color chart), physiological index (area, length, width, leaflet number, fresh and dry weight) and N index (petiole sap NO3 and
Publicado em: 2007