Evaluating colloidal phosphorus delivery to surface waters from diffuse agricultural sources.

@article{Heathwaite2005EvaluatingCP,
  title={Evaluating colloidal phosphorus delivery to surface waters from diffuse agricultural sources.},
  author={Ann Louise Heathwaite and Phil M. Haygarth and Rachel Matthews and Neil Preedy and Patricia Butler},
  journal={Journal of environmental quality},
  year={2005},
  volume={34 1},
  pages={
          287-98
        }
}
Colloid-facilitated phosphorus (P) delivery from agricultural soils in different hydrological pathways was investigated using a series of laboratory and field experiments. A soil colloidal P test was developed that yields information on the propensity of different soils to release P attached to soil colloids. The relationship between turbidity of soil extracts and total phosphorus (TP) was significant (r2 = 0.996, p < 0.001) across a range of agricultural soils, and a strong positive… CONTINUE READING

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