Organic fertilizer, as an important foundation of organic agriculture, has the advantages of improving soil structure, increasing soil fertility, and increasing crop yields. Cow dung, as a high-quality source of organic fertilizer, has also attracted much attention. So, how to ferment cow dung into organic fertilizer? Here is a detailed introduction for everyone.

Prepare raw materials

1. Cow dung: fresh cow dung, preferably naturally air-dried.

2. Bacteria: fermentation bacteria, which can be purchased at agricultural supply stores or online.

3. Fillers such as straw and rice straw: used to adjust moisture and carbon-nitrogen ratio.

4. Appropriate amount of water: used to adjust humidity.

Cow dung fermentation method

1. Dry the cow dung to a semi-dry state, so that it can be held in a ball and fall apart when it is loosened.

2. Mix the cow dung and bacteria in a ratio of 100:1, then add an appropriate amount of straw, rice straw and other fillers and stir evenly.

3. Stack the mixed materials in a ventilated and sunny place, with a height of about 1 meter.

4. During the fermentation process, turn the pile every 3-5 days to promote fermentation.

5. The fermentation time is about 20-30 days, and it is best to make the cow dung completely decomposed and odorless.

How to use fermented cow dung

1. As base fertilizer: Applying fermented cow dung to the soil before planting can improve soil structure, increase soil fertility, and promote crop growth.

2. As topdressing: During the growth of crops, applying fermented cow dung to the soil can provide nutrients and promote crop growth.

3. As the main source of organic fertilizer: Mixing fermented cow dung with other organic fertilizers can provide a variety of nutrients and promote crop growth.