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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 1999

Autor: Smith, J. Cadavid, J.C. Ayarza, Miguel Angel Aguiar, J.L.P. de Rosa, Roberto

This paper analyzes land use change in the Brazilian savanna and draws out policy implications about the adoption of resource management technologies. Resources management technologies are more likely to be adopted in areas experiencing a long-term deterioration in market conditions. Adoptions oc...

Enlace original: https://cgspace.cgiar.org/handle/10568/18107

Investigación en Agricultura
Enlace permanente
Smith, J. ,  Cadavid, J.C. ,  Ayarza, Miguel Angel ,  Aguiar, J.L.P. de ,  Rosa, Roberto ,  [Land use change in soybean production systems in the Brazilian savanna: the role of policy and market conditions] ,  Land use change in soybean production systems in the Brazilian savanna: the role of policy and market conditions
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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