What is the principle of water and fertilizer integrated equipment?

Hello, the integration of water and fertilizer refers to mixing soluble solid or liquid fertilizer with irrigation water by means of waterway pressure system according to the nutrient content of soil and the fertilizer demand rules and characteristics of crop types, and then supplying water and fertilizer through controllable pipeline system, so that after the water and fertilizer are mixed, drip irrigation is formed through pipelines and emitters, which is uniform, regular and quantitative, and penetrates into the root growth area of crops, so that the main root soil always keeps loose and suitable water content according to different conditions. According to the law of water and fertilizer demand of vegetables in different growth periods, the demand design of different growth periods is carried out, and the water and nutrients are quantified regularly and directly provided to crops in proportion.