1、 Fermentation method

1. Put the pine bark into a clean plastic bag, add some fertilizer and water inside, use tools to tie the mouth of the bag tightly, don't let it come into contact with the air, place it in a place with sufficient light, and wait for about a month

2. The second method is to cover the chicken dung evenly with lime and fermentation AIDS, and then cover it with urea. Wait for about 12 hours and stir again. During this period, pay attention to moisturizing and heat preservation. The temperature during fermentation should be controlled at 40-45 ℃. Turn it every half a month or so. Wait for about 2-3 months to ferment

2、 Method for judging whether fermentation is good

1. Color: after it has not been fermented and matured, its color is usually brown. However, after fermentation, the color will become darker and scorched black

2. Taste: it can also be judged by smelling its taste. Its own taste has some fragrance. However, during fermentation, we will add urea, accompanied by high-temperature fermentation, and the taste will become very unpleasant and pungent