Chicken manure is a relatively good organic fertilizer, containing about 1.63% pure nitrogen, 1.54% phosphorus (P2O5), and 0.85% potassium (K2O). Before application, chicken manure must be thoroughly composted to inactivate any existing eggs, as well as pathogenic bacteria, through the composting (fermentation) process. Since composting generates high temperatures, it can easily lead to nitrogen loss. Therefore, it's necessary to add an appropriate amount of water and 5% superphosphate before composting for better fertilizer effectiveness. Composting methods include soaking the manure in a manure pit or covering it with soil for surface composting. After thorough composting, chicken manure becomes a base fertilizer for planting crops, or it is commonly used as a base fertilizer applied in winter for year-round use in fruit tree cultivation.
Organic fertilizer composting reactors, also known as intelligent high-temperature aerobic composting reactors, are the main components of the reactor-style compost fermentation system. They can be categorized into silo, tower, drum, agitator tank, and circular agitator bed types based on the design of the reflective container. There are six types of tunnel and tunnel kiln designs. The working principle involves mixing animal and poultry waste, kitchen waste, domestic sludge, and other waste in a specific ratio, then transferring them into the organic fertilizer composting reactor once the moisture content reaches the designed requirement. During this period, the intelligent high-temperature aerobic treatment equipment is controlled through ventilation, aeration, and agitation to achieve the temperature required for the fermentation process.

Biological organic fertilizer is an organic fertilizer processed from solid organic waste (including organic garbage, straw, animal manure, cake meal, agricultural by-products, and solid waste from food processing) after microbial fermentation, deodorization, and complete composting.
The current method for producing biological organic fertilizer mainly involves composting, which primarily entails transporting animal waste to composting sites and then manually stirring and fermenting it to create the fertilizer. This method has the following drawbacks: 1. Manual stirring is labor and resource-intensive; 2. The transportation of animal waste can lead to secondary pollution during the process; 3. The high yield of compost is suitable for large-scale farms but not for small-scale poultry or livestock farmers.

Typically, as the living standards of residents improve and urbanization accelerates, cities and towns are continuously generating large amounts of urban organic waste, including sludge from wastewater treatment plants, domestic garbage, kitchen waste, garden waste, and agricultural waste, which have led to phenomena such as "waste surrounding cities" and "random dumping of sludge." These pollutants are high in organic matter, containing eggs, pathogenic microorganisms, heavy metals, and if not properly handled, can cause severe environmental pollution and public health incidents. On the other hand, due to the high content of organic matter and nutrients in these urban pollutants, improper utilization can disrupt the Earth's material cycle system and lead to resource waste.

The current technology for producing organic fertilizers primarily involves the composting of farmyard manure through fermentation and the addition of microbial strains for fermentation. Common issues include: 1. Open-air composting is required, which leads to slow compost heating and a fermentation period of 30-90 days or more; 2. The natural fermentation temperature of compost usually doesn't exceed 60 degrees, resulting in incomplete fermentation, low sterilization level, and large amounts of harmful bacteria, worm eggs, and weed seeds in the produced organic fertilizer, making it prone to pests and diseases when applied to fields and crops; 3. Composting fermentation is carried out in open sites, requiring compost turning machines for turning during the process, which generates a strong odor and a large amount of waste liquid is drained from the compost mass, causing significant environmental pollution and material nutrient loss; 4. The level of mechanization is low, making it impossible to achieve automated production; 5. The production process is easily affected by natural conditions, particularly during winter and rainy seasons, preventing continuous production throughout the year.
Organic fertilizers refer to a category of fertilizers that are specifically produced from various animal waste products (including animal excrement and processing waste) and plant residues (such as cake fertilizers, crop straw, fallen leaves, withered branches, peat moss, etc.). These fertilizers are manufactured using physical, chemical, or biological processing techniques, or a combination of these methods. Through certain processing processes (including but not limited to composting, high temperature, and anaerobic processes), harmful substances (pathogens, pest eggs, weed seeds, etc.) are removed to meet the standard of harmlessness. They comply with national standards and regulations.