The quality of straw organic fertilizer is better than that of animal manure organic fertilizer, which often contains some heavy metals. The raw materials of straw organic fertilizer, such as wheat straw, are abundant and low-cost; there will be a broad market space in the future. With the development of the green production increase model this year, straw organic fertilizer will become increasingly scarce.

1. Straw processing: First, use a straw crusher to crush the material to a certain fineness, then add an appropriate amount of raw materials such as chicken manure or sludge, adjust the carbon-nitrogen ratio and moisture of the compost material, or add bacteria and enzymes.

2. Fermentation: It can be divided into two stages: First, pre-fermentation, which can be carried out in the open air or in a fermentation device. Oxygen is supplied to the stacking layer or fermentation device by turning over forced ventilation, and livestock and poultry manure is added with straw as the main body. The main fermentation cycle of aerobic composting is about 3-10 days. The second is post-fermentation, sending the semi-finished product after the main fermentation to the post-fermentation process, further decomposing the easily decomposable organic matter and the difficultly decomposable organic matter that were not decomposed in the main fermentation process into stable organic matter such as humic acid and amino acids, and obtaining a completely decomposed organic fertilizer product. The post-fermentation time is usually more than 20-30 days.

3. Post-fermentation treatment: It can be further dried and crushed as needed to make it a qualified organic fertilizer raw material.

4. Storage: Compost is generally used in spring and autumn and must be stored in summer and winter. The storage method can be directly stacked in the fermentation tank or bagged, and it must be dry and breathable.