In 2011, the issue of farmland water conservancy was raised to the height of "No. 1 Document", marking the urgency of solving the problem of water scarcity. With the adjustment of agricultural industrial structure, broadening the efficient and water-saving agricultural path has become a major issue of agricultural production. This has led to fundamental changes in the structure of fertilizer demand and the development of new agricultural technologies.

Water-soluble fertilizer, which has the nutrients needed for crop growth, can be rapidly dissolved in water, and is more easily absorbed by crops, is becoming the fertilizer choice of farmers

The scope of use has also gradually shifted from cash crops to field crops. Because water-soluble fertilizer has the characteristics of water saving, fertilizer saving, labor saving and yield increasing, it fully meets the requirements of water-saving agriculture "water and fertilizer integration" for fertilizer, so the development prospect is very broad. It is understood that at present, China's water-soluble fertilizer is in a critical period of transformation from auxiliary fertilizer to main fertilizer.

"Water and fertilizer integration" technology is a new agricultural technology that integrates irrigation and fertilization. It is to dissolve solid quick-acting fertilizer in water and fertilize it with water. Generally, the fertilizer is dissolved and mixed in the pool in the field, and the water is used as the carrier to complete the fertilization at the same time of irrigation. The advantage of this technology is that the fertilizer efficiency of irrigation and fertilization is fast, and the nutrient utilization rate is improved, which can avoid the problems of volatilization loss, slow dissolution and slow final fertilizer efficiency caused by fertilizer application in the dry topsoil layer; In particular, the problem of volatilization loss of ammonium and urea nitrogen fertilizer on the surface is avoided, which not only saves nitrogen fertilizer but also is beneficial to environmental protection, and has a significant effect on water saving.

Compared with conventional fertilization, the irrigation and fertilization system can save 50% to 70% of fertilizer and achieve the goal of good crop yield and quality in production. The advantages of this technology are that the fertilizer efficiency of irrigation and fertilization is fast, the nutrient utilization rate is improved, the balanced fertilization and centralized fertilization are realized, the volatilization and loss of fertilizer are reduced, and the loss caused by nutrient excess is reduced. It has the advantages of simple fertilization, timely fertilizer supply, easy absorption of crops, and improved fertilizer utilization rate. Water-soluble fertilizer has the characteristics of saving water, fertilizer, labor and yield.