China's integrated water and fertilizer development in agriculture has been around for over a decade. When it comes to integrated water and fertilizer, many people have a general idea of what it is, but can't quite articulate it.

Agricultural irrigation and fertilization were once challenging, but the integration of water and fertilizer has completely resolved this issue. The integration combines automatic irrigation and fertilization, utilizing the pressure system of the water-fertilizer integration machine to supply soluble solids or liquid fertilizers according to the needs of various crops. Through a controlled pipeline system, water and fertilizer are mixed and then delivered through pipes and drippers to form drip irrigation, ensuring even, timed, and quantified moisture and nutrient supply to the root development and growth areas of the crops.

The advantages include rapid effectiveness in irrigation and fertilization, as well as improved nutrient utilization. It can prevent the issues of volatilization loss, slow dissolution, and ultimately slow nutrient release that may occur when fertilizer is applied to drier surface soil layers. Particularly, it avoids the problem of volatilization loss from ammonium and urea nitrogen fertilizers on the surface, saving nitrogen fertilizer and benefiting environmental protection.

The water-fertilizer integrated machine is a key piece of equipment in the water-fertilizer integration technology, encompassing the control of both fertilization and irrigation quantities. It involves various aspects such as farmland irrigation, crop cultivation, and soil tillage. Its main technical essentials include: drip irrigation systems, fertilization systems, suitable types of fertilizer, and the operation of irrigation and fertilization.

Drip irrigation fertilization is a method of fertilization that applies nutrients directly to the roots, significantly improving fertilizer utilization. Compared to conventional fertilization, it can save over 30-50% of fertilizer usage. It also saves a substantial amount of labor, reducing fertilization labor by over 90% compared to traditional methods. Fertilization is quick, allowing for the application of fertilizers over thousands of acres to be completed in just one day.

Efficiently and conveniently control the timing and amount of fertilization. Significantly boost yields and enhance quality, as well as the crop's resistance to adverse weather. Suitable for cultivating crops on marginal soils such as sandy areas, steep mountain slopes, and slightly saline-alkaline soils. Beneficial in preventing fertilizer runoff into groundwater and contaminating water bodies.

Drip irrigation allows for fertilization based on the crop's nutrient requirements. More fertilizer is applied when absorption is high, and less when it's low. Many crops reach their peak nutrient demand during the canopy stage, but due to field access restrictions, such as with potatoes, sugarcane, and pineapples, topdressing is not feasible. Drip irrigation, however, is unrestricted and allows for timely topdressing. With the continuous supply of water and nutrients, crops grow faster, enabling an earlier fruiting stage or harvest.