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Sustainable land use in periodically dry Brazilian savannas requires a water-saving management. We hypothesized that the annual course of matric potentials (?M) in very-fine, isohyperthermic Anionic Acrustoxes of Pinus plantations (PI), degraded (DP) and productive pastures (PP), no-till (NT) and...


Lilienfein, JWilcke, W.Ayarza, Miguel AngelLima, SCVilela, LZech, W.[Annual course of matric potential in differently used savanna oxisols in Brazil]Annual course of matric potential in differently used savanna oxisols in Brazil

The objective of this work was to assess the effects of integrated crop-livestock systems, associated with two tillage and two fertilization regimes, on the abundance and diversity of the soil macrofauna. Four different management systems were studied: continuous pasture (mixed grass); continuous...


Marchao, RLLavelle, Patrick M.Celini, LBalbino, LCVilela, LBecquer, T[Soil macrofauna under integrated crop-livestock systems in a Brazilian Cerrado Ferralsol]Soil macrofauna under integrated crop-livestock systems in a Brazilian Cerrado Ferralsol

In the Brazilian savanna, there is a risk that soil fertility of pastures declines to a level below that of the native savanna because of low fertilizer application. To evaluate biophysical pasture sustainability we compared regularly fertilized productive pasture (PP), degraded pasture fertilize...


Lilienfein, JWilcke, W.Vilela, LAyarza, Miguel AngelCarmo Lima, S. doZech, W.[Soil fertility under native cerrado and pasture in the Brazilian savanna]Soil fertility under native cerrado and pasture in the Brazilian savanna

The effect of land use on the availability of nitrogen (N) was studied by separating total N into a labile and a stable fraction by oxidation and extraction of labile N with KMnO4. The nitrogen management index (NMI) was calculated following the method of Blair et al. (1995) for the carbon manage...


Westerhof, RVilela, LAyarza, Miguel AngelZech, W.[Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil]Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil

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