In agricultural production activities, aquaculture is also a group that cannot be ignored, and the amount of waste water produced every day is also huge. If these "waste" can be effectively used, it can not only help solve the problem of stacking, but also increase income. Take pig manure as an example, the use of pig manure organic fertilizer production line can effectively solve the problem of pig manure treatment. If the pig manure organic fertilizer production line is not used, according to the ordinary pile retting, it takes at least 4-6 months to ferment successfully, but this fertilizer making method takes up factory land and wastes time, the organic fertilizer produced by pile retting is poor, and the smell will pollute the air, especially the internal bacteria are not treated at high temperature and are not completely killed. These are hidden hazards. Organic fertilizer equipment is used to treat pig manure in a unified manner. On the one hand, the organic fertilizer produced can reduce the amount of fertilizer used, improve the soil, and promote plant growth. On the other hand, organic fertilizer applied to plants and probiotics combined with root irrigation or leaf spraying can improve plant immunity, prevent a variety of plant diseases, and reduce or even avoid the use of pesticides. The resulting pollution-free crop will be welcomed.