According to different crops and planting types, drip irrigation systems can be divided into fixed and semi-fixed types.
The fixed drip irrigation system means that the entire pipe network will not move after it is installed, and it is suitable for fruit trees, grapes, fruits, vegetables and other crops.
The stem and branch pipes of the semi-fixed drip irrigation system are fixed, only the capillary in the field is movable, and one capillary can control several rows of crops. ; This can improve the utilization rate of capillary tubes and reduce equipment investment. This type of drip irrigation system is suitable for crops such as vegetables and fruits in wide rows.
Drip irrigation systems can be divided into the following three categories according to the arrangement of capillary tubes in the field, whether they are moved or not, and the way of irrigation in the drip irrigation project:
floor mounted
The capillary is arranged on the ground, and the system in which the capillary and the irrigator do not move during irrigation is called a ground-mounted system, and most of these systems are now used. Used in the irrigation of orchards, greenhouses, greenhouses and a few field crops, the irrigation device includes various drippers and drip irrigation pipes and belts. The advantage of this system is that it is easy to install and maintain, and it is also convenient to check the soil wetting and measure the flow change of the dripper;
underground fixed
The system in which the capillary tube and the irrigator (mainly the dripper) are all buried underground is called the underground fixed system. many. Compared with the ground-fixed system, its advantage is that it eliminates the work of installing and disassembling the capillary before and after planting and harvesting, does not affect field cultivation, and prolongs the service life of the equipment; the disadvantage is that it cannot check soil wetness and measure dripper flow. Changes in the situation, the occurrence of problems and maintenance is also difficult.
mobile
During irrigation, the system in which the capillary and the irrigator move from one location to another for irrigation after the irrigation is completed is called a mobile drip irrigation system, and this type of system is also rarely used. Compared with the fixed system, it improves the utilization rate of the equipment and reduces the investment cost. It is often used for field crops and crops with fewer irrigation times, but the operation and management are more troublesome and the management and operation costs are high. It is suitable for drought and water shortage, It is used in areas with poor economic conditions. According to the different modes of operation of the control system, it can be divided into three categories: manual control, semi-automatic control and fully automatic control:
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