With the excessive and improper use of agricultural fertilizers, China’s agriculture is becoming an important part of the ecological environment pollution. The water, soil and atmospheric environment have been overwhelmed by chemical fertilizers. In recent years, chemical fertilizers have emerged in many water pollution incidents. According to the inquiry of the Chinese Academy of Agricultural Sciences, the application amount of nitrogen fertilizer in China has far exceeded the demand for grain crops. The average application amount of nitrogen fertilizer in 17 provinces across the country has exceeded the internationally recognized upper limit of 225 kg per hectare. The combination of excessive and improper use of chemical fertilizers and the destruction of capital, as well as the pollution of ecological environment, has also reduced the return of chemical fertilizer input by 50% to 60% in the past 30 years, resulting in the reduction of agricultural product quality, the intensification of food safety problems, and the cumulative effect of agricultural pollution.
Compared with chemical fertilizer, the production of bio-organic fertilizer produced by the production line of bio-organic fertilizer has the advantages of low energy consumption, low cost, effective treatment of waste, complete recycling economy, non-toxic, harmless, ecological and environmental protection. Its development, production, implementation and use have practical significance for the development of sustainable agriculture.
The development of organic fertilizer industry is of great significance
Only by applying the fertilizer processed by the bio-organic fertilizer production line can the natural nutrient recycling be realized. At present, the agricultural organic waste resources generated in China each year are converted into about 60 million tons of nitrogen, phosphorus and potassium nutrients, of which less than half are used in farmland, and a large proportion of the agricultural solid organic waste nutrient resources are lost in the environment, while the chemical fertilizer used in crop production in China is converted into about 54 million tons of nitrogen, phosphorus and potassium nutrients. If the above organic nutrient resources are fully utilized, about half of the fertilizer nutrient input in China can be saved, This is a huge nutrient resource.
The construction scale of the equipment configuration of the manure organic fertilizer production line is generally 300000-100000 tons per year. Different production lines can be configured according to the actual situation, with the fixed cost between 100000 and 300000. In the case of better income in the later stage, additional organic fertilizer production lines can be appropriately added to expand the scale of organic fertilizer production.