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Abstract

This was the first seminar at which the experts from both the sewage sludge and animal manure sides came together to discuss their common problems and rightly so. Liquid sludges and animal slurries have much in common though there are differences which must be borne in mind. The main components of both products are nitrogen and organic matter, the availability of the nitrogen depending on treatment and composition of the organic matter. The present seminar is devoted to the residual and longer term benefits of sewage sludges and farm slurries. There are papers which deal with the availability of soil nutrients from sludges and slurries treated in different ways, on the phosphate balance in soil and the soil ameliorating properties of these organic amendments. Changes on storage and mineralization in soils after treatment with sludges stabilized by different methods are also discussed. Lastly, but certainly not least, is the important aspect of evaluating the composition of sludges and slurries. Variability in slurry composition often makes it desirable to obtain an "on the farm" estimate of nutrient value if they are to be used efficiently without detriment to the environment.

Additional information

Authors: WILLIAMS J H MINISTRY OF AGRICULTURE, WOODTHORNE, WOLVERHAMPTON (UK) GUIDI G LABORATORIA PER LA CHIMICA DEL TERRENO, CNR, PISA (ITALY) L'HERMITE P CEC BRUXELLES (BELGIUM) , MINISTRY OF AGRICULTURE, WOODTHORNE, WOLVERHAMPTON (UK);LABORATORIA PER LA CHIMICA DEL TERRENO, CNR, PISA (ITALY);CEC BRUXELLES (BELGIUM)
Bibliographic Reference: BOOK: 235 P., 1985, ISBN 0-85334-399-3 WRITE TO ELSEVIER APPLIED SCIENCE PUBLISHERS LTD., CROWN HOUSE, LINTON ROAD, BARKING, ESSEX IG11 8JU (UK), PRICE: UKL 25, (EUR 9731 EN).
Record Number: 1989124043500 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en