This study assessed the influence of land use (continuous cropping, CC; tree plantations, F; pasture, PG; and native savanna, NS) on P concentrations and partitioning in bulk soil and two aggregate size fractions of two Oxisols, one loamy and one clayey. The quantity and quality of physically pro...
Lilienfein, J
,
Wilcke, W.
,
Neufeldt, Henry
,
Ayarza, Miguel Angel
,
Zech, W.
,
[Phosphorus pools in bulk soil and aggregates of differently textured oxisols under different land-use systems in the Brazilian cerrados]
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Phosphorus pools in bulk soil and aggregates of differently textured oxisols under different land-use systems in the Brazilian cerrados
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...
Neufeldt, Henry
,
Silva, J.E. da
,
Ayarza, Miguel Angel
,
Zech, W.
,
[Land-use effects on phosphorus fractions in cerrado oxisols]
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Land-use effects on phosphorus fractions in cerrado oxisols
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...
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]
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Acid monophosphatase: an indicator of phosphorus mineralization or of microbial activity? A case study from the Brazilian cerrados