Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.11/1409
Título: Extractability of P in major soils of Angola as affected by P fertilizers and lime application
Autor: Auxtero, E.
Madeira, M.
Monteiro, M.C.H.
Palavras-chave: Soil
Lime application
Data: 2012
Citação: AUXTERO, E. ; MADEIRA, M. ; MONTEIRO, M.C.H. (2012) - Extractability of P in major soils of Angola as affected by P fertilizers and lime application. In International Congress of EUROSOIL, 14th, Bari, 2-6 july. Poster.
Resumo: Phosphorus (P) deficiency is the major constraint to crop production in most tropical soils (Sahrawat et al., 2001). In Angola, such constraint (i.e, low concentration and low P solubility) has also been reported to limit crop production in many agricultural soils (Ucuassapi, 2006). These soils may require application of inorganic P through soluble and relatively reactive phosphate rock sources, and lime (Dobermann et al., 2002; Murphy, 2007). However, appropriate P management strategies may require information on the fate of applied P and its interaction with the colloidal constituents. Therefore, information on the different P fractions (inorganic and organic) after the application of different rates of P fertilizers and lime, as fractionated sequentially by the Hedley modified procedure (Tiessen and Moir, 1993) is crucial for making appropriate fertilizer and lime rate recommendations for crops (Islam et al., 2010).
URI: http://hdl.handle.net/10400.11/1409
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