With the development and application of agricultural Internet of Things technology, the progress of water and fertilizer integration has been promoted. The farmland water and fertilizer integration intelligent irrigation system based on agricultural Internet of Things technology can automatically detect, allocate and supply water and fertilizer according to the law of water and fertilizer demand of different crops as well as soil environment and nutrient content. In addition to improving the efficiency of irrigation water, the timing and quantitative control of irrigation and fertilization is realized, which can not only save water and energy, but also reduce labor input and labor cost.
Intelligent water and fertilizer integration technology
Is the irrigation and fertilization of agricultural new technology, with the aid of pressure system (or natural divide terrain), the fertilizers in soil nutrient content and crop fertilizer regularity and characteristics of species, with the fat of with irrigation water, through a pipeline system to water, fertilizer, the compatibility, water through the pipe, spray gun, or sprinkler irrigation, uniform, regular, quantitative formation, Spraying area in crop growth and development, make the growth of regional soil stay loose and appropriate moisture content, at the same time according to different crop fertilizer characteristics, environment and soil nutrient content, soil fertilizer law situation for the needs of different stages of design, the water and nutrient timing quantitative, provided directly in proportion to the crops.
Intelligent water and fertilizer integrated system usually includes water source project, head hub, filtration system, field water distribution pipe network system and control software platform, and field meteorological monitoring station and soil moisture monitoring station. Due to different water supply conditions and irrigation requirements in actual production, the intelligent automatic fertilization system of water and fertilizer may only be composed of part of equipment.
Rivers, channels, lakes, Wells and reservoirs can be used as water sources, as long as the water quality meets the requirements of irrigation. In order to make full use of various water sources for irrigation, it is often necessary to build water diversion, storage and lifting projects, as well as the corresponding transmission and distribution projects, which are collectively referred to as the water source system.
Its first hub system mainly includes water pump, filter, pressure and flow monitoring equipment, pressure protection device, fertilization equipment (water and fertilizer integrated machine) and automatic control equipment. The head hub is responsible for the driving, monitoring and control tasks of the whole system, and is the control and scheduling center of the whole system.
Filtration equipment is a necessary equipment for water and fertilizer integration applications. Some users mistakenly believe that well water or other water sources are clean and do not need to be filtered. In fact, well water often contains coarse sand, fine sand and some chemicals that block the drip head. Water and fertilizer integrated machine is the core of the whole intelligent water and fertilizer irrigation system. The water-fertilizer one-body machine takes the automatic control unit as the core, and realizes the automatic management and distribution of water and fertilizer supply through sensor detection technology, microprocessor technology, computer technology and other information technology. System controller through a set of fertilizer injection solenoid valve and a set of EC/pH monitoring system will be timely appropriate and proportional to various fertilizers into the irrigation pipe, automatically complete the fertilization task, reasonable control of water and fertilizer supply.