1. Requirements for fermentation materials:
The fermentation feedstock (such as agricultural waste like manure) is relatively fresh and has not undergone natural composting.
2. Auxiliary material requirements:
The moisture content of fermentation adjuncts (such as straw, rice hulls, etc.) should be moderate, with strong water absorption, appropriate particle size or length, and not overly large. The dosage should be determined based on the moisture content of the fermentation raw materials.
3. The bacterial strain must be evenly distributed
For fermenting organic fertilizer, 50 grams (1 liang) of microbial inoculant is required per ton of raw material. Since it cannot be evenly spread on the fermentation material, the 50 grams of inoculant should first be mixed with 500 grams (1 jin) of any one type of raw material such as wheat bran, wood shavings, oilcake, or rice bran, then evenly spread onto the fermentation material, followed by thorough mixing and stacking for fermentation.
4. Adjust the fermentation moisture properly:
The moisture adjustment of raw and auxiliary materials is crucial, as it directly affects the success or failure of fermentation. The moisture requirement is: after thoroughly mixing the raw and auxiliary materials, they should form a ball when held in hand and split into two parts when dropped on the ground. The general addition ratio of auxiliary materials (such as straw, rice husk, etc.) is 10% to 30% (by weight of the raw materials). If calculated by volume, it is typically 2 parts raw materials to 1 part auxiliary materials.
5. The length, width, and height of the fermentation stack shall meet the standards:
The fermented material must have a width of no less than 1.5 meters, a height of no less than 1 meter, and an unlimited length.