Caracterización química, física y microbiológica de vermicompostes producidos a partir de cinco sustratos orgánicos
Titel:
Caracterización química, física y microbiológica de vermicompostes producidos a partir de cinco sustratos orgánicos
Auteur:
Durán , Lolita Henríquez , Carlos
Verschenen in:
Agronomia costarricense
Paginering:
Jaargang 31 (2007) nr. 1 pagina's 41-51
Jaar:
2007
Inhoud:
Volumes of 0.03 m3 of domestic waste, caw manure, banana production residues, ornamental foliage, and coffee beans residues were deposited separately into wood containers and inoculated with 600 adult worms of the ¿red californian¿ (Eisenia foetida) type. After 3 months, samples of the vermicompost were analized. The results showed that vermicompost materials were highly different in their properties. Banana and domestic treatments had the highest values for K (7 and 3%, respectively). Both materials had similar behavior in pH and salinity, being higher than the other treatments. On the other hand, domestic waste was the highest in N (3.1%). Manure had the highest P value with 2%. Domestic waste showed the highest porcentage of aerial space but the lowest of water retention capacity; which was correlated with greater pores. The volume decreased 80% for both domestic and green leaves, 83% for banana, 53% for manure, and 67% for coffee beans residues. All materials showed high abundance of microorganisms, being domestic and banana treatments more abundant in actinomyces and fungi. It is important to point out that vermicompost materials can be highly diverse in characteristics and those are mainly determined by their primary sources.
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