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Journal Article 1999

Autor: Lilienfein, J Wilcke, W. Ayarza, Miguel Angel Lima, SC Vilela, L Zech, W.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43185

Investigación en Agricultura
Enlace permanente
Lilienfein, J ,  Wilcke, W. ,  Ayarza, Miguel Angel ,  Lima, SC ,  Vilela, L ,  Zech, 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
Journal Article 2003

Autor: Lilienfein, J Wilcke, W. Vilela, L Ayarza, Miguel Angel Carmo Lima, S. do Zech, W.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/44110

Investigación en Agricultura
Enlace permanente
Lilienfein, J ,  Wilcke, W. ,  Vilela, L ,  Ayarza, Miguel Angel ,  Carmo Lima, S. do ,  Zech, W. ,  [Soil fertility under native cerrado and pasture in the Brazilian savanna] ,  Soil fertility under native cerrado and pasture in the Brazilian savanna
Journal Article 1998

Autor: Westerhof, R Vilela, L Ayarza, Miguel Angel Zech, W.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43628

Investigación en Agricultura
Enlace permanente
Westerhof, R ,  Vilela, L ,  Ayarza, Miguel Angel ,  Zech, 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
Journal Article 2000

Autor: Neufeldt, Henry Silva, J.E. da Ayarza, Miguel Angel Zech, W.

Differently managed oxisols from Central Brazil were studied using a sequential P fractionation procedure because the effects of land use on the distribution of P forms in these soils are barely known. Therefore levels of labile and recalcitrant P forms in the natural Cerrado savanna were compare...

Enlace original: https://cgspace.cgiar.org/handle/10568/43630

Investigación en Agricultura
Enlace permanente
Neufeldt, Henry ,  Silva, J.E. da ,  Ayarza, Miguel Angel ,  Zech, W. ,  [Land-use effects on phosphorus fractions in cerrado oxisols] ,  Land-use effects on phosphorus fractions in cerrado oxisols

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