Direct Analysis Of Plant Materials
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Simple procedure for nutrient analysis of coffee plant with energy dispersive X-ray fluorescence spectrometry (EDXRF)
Nutrient analysis is used to estimate nutrient content of crop plants to manage fertilizer application for sustained crop production. Direct solid analysis of agricultural and environmental samples by energy dispersive X-ray fluorescence spectrometry (EDXRF) was chosen as alternative technique to evaluate the simultaneous multielemental quantification of the
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-08
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2. Efeito da fluência na análise de pastilhas de materiais vegetais por espectrometria de emissão óptica com plasma induzido por laser / Effect of fluence on laser induced breakdown spectrometry analysis of pellets of plant materials
A espectrometria de emissão óptica com plasma induzido por laser (LIBS) constitui um método alternativo para a determinação simultânea de macro e micronutrientes em pastilhas de materiais vegetais. No entanto, pouca informação com relação às condições de fluência e de focalização do laser mais apropriadas para a análise de pastilhas de mater
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2011
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3. Argamassa tÃrmica produzida com resÃduos da explotaÃÃo e processamento mineral de caulim e vermiculita expandid
In the last years, mining industry has been mentioned as pollutant sources of the environment, as in case of the kaolin. The pollution occurs due to the great amount of discarded materials (rejects) in the mineral processing and in the ore extraction. These rejects are frequently deposited in the ecosystem without improvement near by the processing plant How
Publicado em: 2008
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4. Avaliação da resistência à Leifsonia xyli subsp. xyli, agente causal do raquitismoda- soqueira (RSD), em variedades comerciais de cana-de-açúcar / Resistance of sugarcane commercial cultivars to Leifsonia xyli subsp. xyli; the causal agent of the ratoon stunting disease (RSD)
Sugarcane (Saccharum ssp.) is one of the most important cultures in the history of the humanity. The center of origin is probably New Guinea, where people had the first contact with the plant in wild state. Presently, Brazil leads the list of the 80 sugarcane producing countries. Brazil is also the first in exporting sugarcane by-products, followed by Austra
Publicado em: 2008
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5. Efeito do manejo do solo com plantas de cobertura, cultivares/híbridos e nitrogênio na cultura do milho / Effect of soil management with soil cover plants, hybrids and dose of nitrogen in the productivity of corn
The corn is the main cereal produced in Brazil and its productivity is very affected by the improper use of nitrogen, which is the nutrient absorbed in larger quantities and therefore responsible for a significant share in production costs. Due to the importance of nitrogen for the corn crop becomes necessary studies to reduce the amount of nitrogen applied
Publicado em: 2008
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6. Caracterização de extrativos de madeira de eucalyptus e depósitos de pitch envolvidos na fabricação de celulose e papel
The objective of this work was to study the chemical composition of lipophilic extracts from eucalyptus wood and compare it with the composition of dirt specks found in cellulose pulp. Gas chromatography coupled with mass spectrometry (GC-MS) and analytical pyrolysis were the main techniques used in the study. The exhaustive extraction of wood was carried ou
Publicado em: 2008
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7. Avaliação da sustentabilidade ampliada de produtos agroindustriais, estudo de caso : suco de laranja. / Sustainability evaluation of agro industrial products, case studies : crange juice.
The objective of the present study was to combine Emergy and Life Cycle Assessment methodologies, used regularly for the evaluation of productive models, to evaluate the sustainability of raw and processed agricultural products, considering the complete productive chain. The combination of these two methodologies allows the evaluation of environmental impact
Publicado em: 2008
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8. COMPORTAMENTO GEOTÉCNICO DA BARRAGEM DE CURUÁ-UNA, PARÁ / GEOTECHNICAL BEHAVIOR OF CURUÁ-UNA DAM, PARÁ.
The geotechnical behavior of Curuá-Una dam, Pará, was studied due its importance to the North Region of Brazil. The power plant, in operation since 1977, is located in the Amazon forest, next to the city of Santarém. The study was comprised of the evaluation of current operation conditions of the dam and prediction of its performance after a possible rise
Publicado em: 2003
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9. Alterations in the phenotype of plant cells studied by NH2-terminal amino acid-sequence analysis of proteins electroblotted from two-dimensional gel-separated total extracts
Phenotypic alterations induced by the cytokinin 6-benzylaminopurine in cell suspensions of Nicotiana plumbaginifolia were studied at the level of the NH2-terminal sequence of the constituent proteins. Total protein extracts were separated by classical two-dimensional PAGE, and the proteins were recovered by electroblotting onto support materials allowing dir