Assessment of plant growth promoting properties of rice straw-based vermicomposts

Date

6-2016

Degree

Bachelor of Science in Agriculture

Major Course

Major in Soil Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Pearl B. Sanchez

Abstract

This study was conducted to evaluate the effect of combining rice straw with various organic materials such as azolla, ipil-ipil leaves, cow manure and carabao manure in improving the quality of the rice straw-based vermicomposts. The raw materials were pre-composted for two weeks before adding the earthworms into the vermicomposting beds. Changes in the chemical characteristics of the organic materials were monitored during the vermicomposting process. Mature vermicomposts and vermicasts collected after 10 weeks were analyzed for pH, C/N ratio, C and nutrient (NPK) content. Results revealed that combining rice straw with ipil-ipil leaves significantly improved the N content of the rice-straw based vermicomposts and vermicasts while addition of cow and carabao manures significantly increased P and K content. The lowest C/N ratio was obtained in the ipil-ipil leaves + rice straw combination.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2016 A3 /R46

Document Type

Thesis

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