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Book Chapter 1999

Autor: Fuhrmann, S Neudelft, H Westerhof, R Ayarza, Miguel Angel Silva, J.E. da Zech, W.

Intensive farming and grazing on Oxisols of the Brazilian savannas (also known as the Cerrados) are leading to loss of soil organic matter (SOM) and consequently to a decline in fertility and sustainability of the soils. Alternative land-use systems such as the introduction of legumes in pastures...

Enlace original: https://cgspace.cgiar.org/handle/10568/55131

Investigación en Agricultura
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Fuhrmann, S ,  Neudelft, H ,  Westerhof, R ,  Ayarza, Miguel Angel ,  Silva, J.E. da ,  Zech, W. ,  [Soil organic carbon, carbohydrates, amino sugars, and potentially mineralizable nitrogen under different land-use systems in oxisols of the Brazilian cerrados] ,  Soil organic carbon, carbohydrates, amino sugars, and potentially mineralizable nitrogen under different land-use systems in oxisols of the Brazilian cerrados
Book Chapter 1999

Autor: Freibauer, A. Westerhof, R Ayarza, Miguel Angel Silva, J.E. da Zech, W.

Short-term changes in soil aggregation, total and particulate organic C and N were studied in cropping and pasture systems of the Brazilian savannas, also known as the Cerrados. Furthermore, the concepts of a hierarchical aggregate structure and of the interaction of soil structure with particula...

Enlace original: https://cgspace.cgiar.org/handle/10568/55129

Investigación en Agricultura
Enlace permanente
Freibauer, A. ,  Westerhof, R ,  Ayarza, Miguel Angel ,  Silva, J.E. da ,  Zech, W. ,  [Short-term variation in aggregation and particulate organic matter under crops and pastures] ,  Short-term variation in aggregation and particulate organic matter under crops and pastures
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
Book Chapter 1999

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

Plant production in the Brazilian savannas, also known as the Cerrados, is limited mainly by low P availability. In tropical soils, rich in sesquioxides, P supply of plants depends heavily on the transformation of organic P by phosphatase enzymes into HPO 4 2- and H 2 PO 4-. We examined two Oxiso...

Enlace original: https://cgspace.cgiar.org/handle/10568/55137

Investigación en Agricultura
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Renz, TE ,  Neufeldt, Henry ,  Ayarza, Miguel Angel ,  Silva, J.E. da ,  Zech, W. ,  [Acid monophosphatase: an indicator of phosphorus mineralization or of microbial activity? A case study from the Brazilian cerrados] ,  Acid monophosphatase: an indicator of phosphorus mineralization or of microbial activity? A case study from the Brazilian cerrados
Book Chapter 1999

Autor: Westerhof, R Silva, J.E. da Ayarza, Miguel Angel Zech, W.

We examined whole-soil samples and particle-size fractions to study the distribution of different phosphorus (P) fractions after land-use change from native savanna to crops, pasture, and reforestation on clayey and loamy Oxisols of the Brazilian savannas. Phosphorus was extracted sequentially, a...

Enlace original: https://cgspace.cgiar.org/handle/10568/55135

Investigación en Agricultura
Enlace permanente
Westerhof, R ,  Silva, J.E. da ,  Ayarza, Miguel Angel ,  Zech, W. ,  [Phosphorus fractions under different land-use systems in oxisols of the Brazilian cerrados] ,  Phosphorus fractions under different land-use systems in oxisols of the Brazilian cerrados

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