- About Us
- Contact Us
- Agri-Extension Blogs
Vermi-composting as source of organic fertilizer
Vermicomposting is composting with worms. The end product called castings are full of beneficial microbes and nutrients. Vermi-composting is important to reduce wastes, increases soil fertility and assures optimum production. It is a fungal fertilizer that is environment-friendly compared to other kinds of fertilizer. Excess worms can be utilized as feeds to poultry and fishes called vermimeal.
Steps in Vermicompost Production
- Select suitable site that is shaded, flood-free and accessible to source of compost materials;
- Prepare beds with 5 x 2 x .2 meters measurement; uncemented hollow blocks as siding with uncovered bottoms; and provide shade for protection from rain and direct sunlights;
- Gather composting materials like farm, garden or kitchen wastes (rice straw, animal manure and vegetable trimmings and fruit peelings;
- Prepare the materials. Pulverize manure, shred freshly cut grass in 1 to 2.5 cm. C/N ratio should be 25-35 (e.g. 75% shredded fresh grass + 25% fresh kakawate). Add water to materials that have at least less than 60% moiture depending on the dryness of the materials. Thoroughly saturate with water. Place the materials in the prepared beds measuring 1 x 1 meter or larger. Cover with plastic sheets to start anaerobic process for one to two weeks;
- Stock the worms. One kilo of earthworms (about 1,000 pcs) for every 1 square meter of vermibed that contains 100-200 kilos of materials;
- Maintain the beds. Maintain at least 60% moiture level. Place screen to protect the earthworm from predators.
- Harvest the vermicompost. Harvest within 30-45 days. Separate the vermi from the vermi compost by handpicking or by sieving with a screen;
- Properly pack vermicompost. Seal and store in cool dry place.