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Arminda Moreira de Carvalho

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Table 1 - Soil physical and chemical characteristics (mean for n = 20 samples) for the 0-20 cm depth of a Typic Acrustox in Planaltina, Federal District, Brazil
Table 2 - Relative percentage of organic groups in cover crops through CPMAS 13 C-NMR determination
Table 6 - C/P Mehlich-1  ratio of the soil with cover crops under conventional and no-tillage regimes at depths of 0-5 and 5-10 cm, considering the dry and rainy seasons during the 2002/2003 crop season, Planaltina, Federal District

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