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Four water-saving irrigation techniques commonly used in gardens

Source: Time:2018-09-06 17:49:29 frequency:

The traditional garden irrigation method is mainly ground flooding (using simple watering tools such as rubber pipes and sprinklers to take water, which is transported to the soil surface for plant absorption in the form of ground flow). This traditional irrigation mode wastes a lot of water; it is easy to damage the soil and produce saline-alkali soil, which is unfavorable to the normal growth of plants and does not meet the basic needs of building conservation-oriented landscaping.
Nowadays, the application of water-saving irrigation equipment that is more suitable for economical gardens has become more popular in China. Here are four kinds of water-saving irrigation techniques↓↓
1. Low pressure pipeline water delivery
The low-pressure pipeline delivers water by burying the pipe underground and passing it through the underground underground pipe.
Compared with traditional open channel water delivery methods, this pressurized pipeline water delivery method
1. Save water loss such as evaporation and leakage during the process of water distribution and distribution, and increase the water delivery efficiency by at least 90%.
2. By controlling the water delivery pressure, the water delivery flow is adjusted to avoid problems such as soil erosion and salinization.
3. The low-pressure pipeline water delivery method also saves the green area and plays the role of improving the overall landscape effect of the garden.
2. Spray irrigation
Spray irrigation is an irrigation method in which pressurized water is sprayed into the air by professional irrigation equipment and evenly sprinkled on the surface of the soil for plant absorption. The basic principle is that the water source takes water, and after the pumping station is pressurized, the pressure pipeline delivers water to the emitter to sprinkle water. Sprinkler irrigation is suitable for low-lying plants such as shrubs, lawns, and flowers. The spraying is dense and uniform. Sprinkler irrigation is used in large-scale pastures and recreational green spaces.
The advantage is that it is adaptable to different terrains. Complex terrain that is difficult to achieve with ground irrigation methods can be set. The water supply rate is controlled by controlling the irrigation time and the water delivery pressure. Before the soil is saturated, if the water supply rate is lower than the soil permeability, the surface of the soil will not generate surface runoff and underground leakage, which solves the problems of ineffective water, soil erosion and soil salinization.
The disadvantage is that it is greatly affected by the wind speed. When the wind speed is greater than 5.5 m / s (equivalent to 4 wind), it can blow off the raindrops and reduce the uniformity of sprinkler irrigation. It is not suitable for use.
3. Drip irrigation
Drip irrigation is transported from a pressure pipe to a irrigator, which injects the irrigated water into the soil at a certain working pressure. It is the core of the drip irrigation system. After passing through the emitter, the water is dripped or exuded at a constant low flow rate and diffused in the soil in the form of a non-saturated stream under the dripper. The flow rate of the dripper is small and the watering time is long.
Drip irrigation pipes are generally buried in the soil. Water is transported to the soil for a long time, which affects the normal breathing of the roots of the lawn. Therefore, the drip irrigation system is not suitable for irrigation of lawns. Its main application is in landscaping such as shrubs, flowers, and street trees.
The characteristics of drip irrigation are small flow, long water delivery time and long frequency. The disadvantages are high water quality requirements, easy clogging of drip openings and high maintenance costs.
4. Micro irrigation
Micro-irrigation uses low-pressure water pump and pressurized pipeline system to deliver water. Under the flow of low-pressure water, the micro-atomizing nozzle sprays water into the air to form fine droplets, which are evenly sprayed into the plant root zone to achieve irrigation. A water-saving irrigation technique.
Micro-irrigation is a water-saving measure with the largest water saving and the highest irrigation efficiency. It is a watering technique between sprinkler irrigation and drip irrigation. The utility model has the advantages of high water-saving efficiency and is suitable for various water-demanding plants; the equipment is easy to operate. Micro-irrigation can be converted to drip irrigation by adjusting the nozzle and the water separator. It is less affected by the wind. Due to the lower installation position and smaller spray elevation angle, it can still be used normally in monsoon climate.


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