Artículos de revistas
Formas de fósforo no solo após o cultivo de braquiária e tremoço branco
Fecha
2013-08-01Registro en:
Ciencia Rural, v. 43, n. 8, p. 1381-1386, 2013.
0103-8478
1678-4596
10.1590/S0103-84782013000800007
S0103-84782013000800007
WOS:000322578800007
2-s2.0-84881068149
2-s2.0-84881068149.pdf
5720775873259528
0000-0003-2001-0874
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Phosphorus is one of the major factor that limits agricultural productivity in most tropical soils. The objective of this study was to assess P transformations and availability in a soil cropped to brachiaria (Urochloa ruziziensis) and white lupin (Lupinus albus L.). The study was carried out in a greenhouse at Botucatu, State of São Paulo, Brazil. Brachiaria and white lupin were grown in pots with soil fertilized with 0, 20, 40, 60 and 80mg dm-3 P. The plants were grown for 60 days, when they were harvested and the soil was sampled. Dry matter yields of both species were increased with P rates. Soil bioactive P is increased with P fertilization, but is not affected by the plant species. White lupin is more effective in taking up the organic soil P, but Brachiaria was more effective in reducing the soil maximum P adsorption capacity.