Drip irrigation flow is low, so users often can't see the irrigation process. Irrigation time is too long, which will produce deep leakage and waste; If the irrigation time is too short, the roots will be subjected to water stress again. To understand the irrigation intensity, plant water demand and soil field capacity of irrigation system, irrigation should be carried out according to plant water demand. The irrigation cycle and irrigation amount should be adjusted according to the climate and different growth stages of plants, and the same irrigation system cannot always be adopted.
02, using the wrong transmitter.
Drip irrigation emitters are usually divided into two types, pressure compensation type and non-pressure compensation type. Although the pressure compensation type is more expensive, the effect is better. First of all, the pressure compensation emitter can ensure that each emitter can produce water evenly and fertilize and irrigate evenly; Secondly, some pressure-compensated emitters can wash away the impurities that block the emitters, and some pressure-compensated emitters have large flow channels and generally do not block.
03. Lack of filtration equipment
Many users mistakenly think that well water does not need to be filtered, but in fact, well water often contains coarse sand, fine sand and some chemicals, which blocks the emitter. Common filters are screen filter, laminated filter and medium filter. If there is sand in the water, a centrifugal filter should be used. Before installing the filtration system, the physical and chemical components of the water quality should be analyzed, and appropriate filtration facilities and emitters should be adopted according to the water quality.
04. Fertilization was not carried out through drip irrigation system.
Synchronous application of water and fertilizer is the biggest advantage of drip irrigation. The growth of plant roots has the characteristics of water and fertilizer, and irrigation water has the highest fertilization efficiency. However, the fertilization irrigation system should have a device to prevent fertilizer from flowing back to prevent fertilizer from polluting groundwater and other water sources.
05. Lack of routine maintenance
Drip irrigation system needs careful maintenance to play its best performance. Where conditions permit, drip irrigation pipe should be washed frequently to ensure smooth equipment. According to the actual needs, adopt effective chemical treatment methods to clean the pipeline regularly.
06, no pressure gauge and flowmeter.
These simple devices can solve the problem that the drip irrigation system can not be accurately judged by the naked eye. The problems of drip irrigation system can be judged by using the pressure gauge to detect the pressure at the head, middle and tail of drip irrigation in drip irrigation pipe, and comparing the historical situation of design pressure or water pressure. The flowmeter can quickly judge the flow of water source.
07, mistakenly believe that all drip irrigation pipe quality is the same.
Different drip irrigation pipe has different quality of raw materials, production technology and patented technology, and more importantly, the emitter structure design of different brands of pipes is different. Drip irrigation pipe with uniform water and fertilizer supply, anti-clogging performance, long service life and easy installation and maintenance should be selected.
08, ignoring long-term operating costs.
Drip irrigation systems are often used for more than 20 years and transport millions of cubic meters of water and fertilizer, so it is very important to consider the uniformity of irrigation, the operation cost of pumping stations and the daily maintenance cost. A well-designed system in the early stage can reduce the later operation cost through its good uniformity or energy saving. In addition, some suppliers have a lot of experience and knowledge, which can guide users to choose the correct irrigation system and provide help in the operation and maintenance of the system.