The utilization rate of chemical fertilizer in China is not high, and the utilization rate of nitrogen fertilizer in that season is only 35%. According to the data of the food and Agriculture Organization of the United Nations, the amount of chemical fertilizer used in China increased by 61% from 1980 to 2002, while the grain output increased by only 31%. The low utilization rate of fertilizer has always been a problem in China's agricultural fertilization. According to the research of lulukun et al., the utilization rate of phosphorus fertilizer in China's farmland is only 10% - 25%. The low utilization rate of phosphorus fertilizer not only causes serious waste of resources, but also makes a large amount of phosphorus accumulate in the soil, resulting in farmland and environmental pollution. Therefore, improving the utilization rate of phosphate fertilizer is of great significance to the sustainable development of agriculture and environmental protection.

Fertilizer accounts for more than 25% of agricultural production costs (material costs plus labor costs) and about 50% of all material costs (seeds, fertilizers, pesticides, mechanical operations, irrigation and drainage, etc.), for which the state, local governments and farmers have paid a great price.

Farmers need to pay 140billion yuan for the purchase of chemical fertilizer every year (according to the cultivated land area, the average annual purchase of chemical fertilizer per hectare is 1005 yuan).

The state and local governments pay US $3.5 billion in foreign exchange for the import of chemical fertilizers every year.
The country has invested 16billion yuan annually to increase the production capacity of chemical fertilizer.

65.45 million tons of standard coal are consumed annually for the production of chemical fertilizers, accounting for 5% of the total national energy production. The world fertilizer market is basically balanced between supply and demand, with a slight surplus. However, the development of each region is uneven. The regions with excess nitrogen fertilizer are the former Soviet Union, Eastern Europe and the Middle East, and the gap areas are Asia and Western Europe. Phosphate fertilizer production is concentrated in North America, the former Soviet Union, China and Africa, which are rich in resources. The gap areas are Asia, Western Europe and Latin America. Potash fertilizer is concentrated in a few countries with resources such as Canada and the former Soviet Union. Asia has the largest fertilizer gap in the world, with 10% for nitrogen fertilizer, 30% for phosphorus fertilizer and 90% for potassium fertilizer.