Factors that help compost decompose quickly

Composting is an organic solution that improves soil, lowers fertilizer costs and reduces agricultural waste. However, many farming households struggle with lengthy decomposition times. Below are 5 ways to speed up composting, shortening the process to just around 4 weeks if done correctly.

Turning and increasing aeration

First, regular turning increases oxygen, heats up the compost pile, and promotes decomposition. A general rule is to turn it every 3–4 days or when the temperature drops below 40°C. Second, aerate by designing compost bins with gaps or placing perforated PVC pipes in the middle for air circulation.

Maintain moisture and balance ingredients

Third, maintain appropriate moisture levels by watering lightly when the materials are too dry, avoiding waterlogging the compost pile which slows down decomposition. Fourth, supporting additives such as green leaves, fresh grass, or microbial inoculants can be added, but a balanced ratio must be maintained: 3 parts brown material to 1 part green material.

Adjusting compost pile size

Finally, adjust the size of the compost pile: too small and it may not decompose well; too large and it becomes difficult to turn. The ideal size is about 1 m³ (3×3×3 ft); placing it in a 5×5×5 ft bin will help the process proceed quickly and evenly.

Simultaneously applying these 5 principles will help farmers secure their own supply of organic fertilizer, improve soil health, and reduce dependence on chemical fertilizers.