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Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil por Westerhof, R, Vilela, Lourival, Ayarza, Miguel Angel, Zech, W.

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Aggregation studied by laser diffraction in relation to plowing, soil organic matter, and lime in the Brazilian cerrados por Westerhof, R, Buurman, P, Griethuysen, C. van, Ayarza, Miguel Angel, Vilela, Lourival, Zech, W.

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Short-term variation in aggregation and particulate organic matter under crops and pastures por Freibauer, A., Westerhof, R, Ayarza, Miguel Angel, Silva, J.E. da, Zech, W.

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Soil organic carbon, carbohydrates, amino sugars, and potentially mineralizable nitrogen under different land-use systems in oxisols of the Brazilian cerrados por Fuhrmann, S, Neudelft, H, Westerhof, R, Ayarza, Miguel Angel, Silva, J.E. da, Zech, W.

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Carbon fractions as sensitive indicators of quality of soil organic matter por Westerhof, R, Vilela, Lourival, Ayarza, Miguel Angel, Zech, W.

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Labile N and the nitrogen management index of oxisols in the Brazilian cerrados por Westerhof, R, Vilela, Lourival, Ayarza, Miguel Angel, Zech, W.

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Characterization labile and stable nitrogen por Westerhof, R, Vilela, Lourival, Ayarza, Miguel Angel, Zech, W.

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Phosphorus fractions under different land-use systems in oxisols of the Brazilian cerrados por Westerhof, R, Silva, J.E. da, Ayarza, Miguel Angel, Zech, W.

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