25 resultados para Variacao de composicao
em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"
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Landsat images obtained in different periods were analysed with the aid of a transmission densitometer. Forest, pasture and crops were studied during Jan., April, July and Oct. and the results suggest the possibility of studying crop cycles using this method. -from Field Crop Abstracts
Caracterizacao climatica e variacao das disponibilidodes de agua nos nucieos canavieriros paulistas.
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Analyses water budgets and time series data on the relationship between rainfall and evapotranspiration for the sugar-cane zones of Sao Paulo State and then compares water availability in soil with agricultural yields. -R.N.Gwynne
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The densitometrical interpretation is a technical resource that removes both the subjectivity of conventional interpretation and the high operational cost of automatic interpretation. Meanwhile, the densitometric lecture presents variability and this work has the objective of examinating, through Chi-square test, if there exists significative differences of cone overture of the densitometer as to the filter used. The results were the following: the variation that happened in this densitometric lecture, when different cone overture and filter were used, have not invalidated the values that were obtained; the extreme values variations have to be used with attention, so will not be overstep of values among the different elements of soil covering have to be used discerniment to classify this values; the study was in consonance with other authors. -from English summary
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Geociências e Meio Ambiente - IGCE
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Ciências Biológicas (Biologia Vegetal) - IBRC