The Environmental Impact of Phosphorus from the Agricultural Disposal of Sewage Sludge -Stage 2

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Progress is reported for the second year of the three year project. Laboratory analysis indicated that phosphorus available may be low for dewatered, composted or dried sludges. Field experiments indicated that phosphorus leachate and run- off from sludged plots was less than that from plots receiving inorganic fertiliser or livestock slurry. Further lysimeter work confirmed that phosphorus losses are negligible from land treated with sewage sludge. Most of the sludge phosphorus applied to land is retained in the topsoil and this may lead to surface run- off.



UKWIR Reference :- 96/SL/02/3Published Date :- 17/04/2002
Retail Price (£) :- 10ISBN :- 1 84057 117 9