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A platform for research: civil engineering, architecture and urbanism
The vermicomposting of pre-treated pig manure
AbstractThis paper reports the results of a study of vermicomposting of pre-treated pig manure in Hong Kong using the earthworm Eisenia foetida. Pig manure was first composted, supplemented with 4% calcium sulphate and then washed before feeding to worms. Worms fed untreated pig manure died within 24 h. Worm castings had a stimulating effect on the growth of Glycine max (soybean), with an increase in root length, lateral root number, shoot length, and internodal length of seedling plants. Local fish fed on boiled worm biomass tissue extracted with isopropanol, ethanol or isobutanol did not die. The boiling and solvent extraction are necessary to enhance the storage of worms. The results showed that fecund earthworm species, such as Eisenia foetida are suitable agents for biorecycling pre-treated pig manure; the worms grow rapidly and produce a humus-rich worm-cast which is odour-free.
The vermicomposting of pre-treated pig manure
AbstractThis paper reports the results of a study of vermicomposting of pre-treated pig manure in Hong Kong using the earthworm Eisenia foetida. Pig manure was first composted, supplemented with 4% calcium sulphate and then washed before feeding to worms. Worms fed untreated pig manure died within 24 h. Worm castings had a stimulating effect on the growth of Glycine max (soybean), with an increase in root length, lateral root number, shoot length, and internodal length of seedling plants. Local fish fed on boiled worm biomass tissue extracted with isopropanol, ethanol or isobutanol did not die. The boiling and solvent extraction are necessary to enhance the storage of worms. The results showed that fecund earthworm species, such as Eisenia foetida are suitable agents for biorecycling pre-treated pig manure; the worms grow rapidly and produce a humus-rich worm-cast which is odour-free.
The vermicomposting of pre-treated pig manure
Chan, Paul L.S. (author) / Griffiths, D.A. (author)
Biological Wastes ; 24 ; 57-69
1987-09-20
13 pages
Article (Journal)
Electronic Resource
English