Soil phosphorus fractions in solution: influence of fertiliser and manure, filtration and method of determination.

@article{Mcdowell2001SoilPF,
  title={Soil phosphorus fractions in solution: influence of fertiliser and manure, filtration and method of determination.},
  author={Richard Mcdowell and Andrew N. Sharpley},
  journal={Chemosphere},
  year={2001},
  volume={45 6-7},
  pages={737-48}
}
This study investigated the forms of soil P released to solution, accuracy of their determination, and influence of colloids on P sorption/desorption dynamics. A Hagerstown silt loam, amended with dairy and poultry manure or superphosphate at five rates (0, 25, 50, 100, and 200 kg P ha(-1)), was extracted at two soil:solution ratios (1:5 and 1:100) and filtered at three pore sizes (0.8, 0.45, and 0.22 microm). Results showed that relative to the proportion of dissolved organic P (DOP… CONTINUE READING