- Slides: 5
Dr. M. Deivanayaki
Principles of vermicomposting A variety of approaches and designs has been developed for vermicomposting systems, but the basic principle is the feeding of acceptable organic materials to earthworms in continuous or batch culture, and the collection of processed wastes that ultimately consist of stabilized castings.
FACTORS AFFECTING VERMICOMPOST The most important abiotic factors which affect vermicomposting process include moisture content, p. H, temperature, aeration, feed quality, light, C: N ratio etc. Adequate moisture content is one of the most important factors necessary for the working of earthworms and microorganisms in vermicomposting system.
Precautions Do not put fresh cow dung on the bed because it is hot and it can kill the earthworms. • Maintain moisture, shade, temperature ranging between 8 to 30 degrees and proper air flow in the bed. • Protect the earthworms from enemies like frogs, snakes, birds, crow, lizard ant. • Cow dung should not be hard and dry, make the dung wet and cold before using it as earthworm’s feed. • Take care that there is no outbreak of termites and red ant in the bed. • Do weeding every week in the bed, so that earthworms can get proper air flow. • Keep removing the compost layer from top of the bed when it is ready.