Integrated water and fertilizer technology is a new agricultural technique that combines irrigation and fertilization. It utilizes pressure systems (or natural terrain gradients) to mix soluble solid or liquid fertilizers with irrigation water according to the soil nutrient content and the fertilization needs and characteristics of the crop species. This mixture is then supplied through a controlled pipeline system, blending water and fertilizer. After mixing, it forms a drip irrigation system that is even, timed, and quantified, moistening the root development and growth areas of the crop. This ensures that the main root soil remains loose and maintains an appropriate moisture content. Additionally, based on the specific fertilization needs, soil environments, and nutrient content of different crops, as well as the water and fertilization requirements during different growth stages of vegetables, a demand design is implemented to provide water and nutrients at specific times and in precise amounts, directly to the crops in proportion.