Supplying 16mm simple bypass valve

Drip irrigation is installed on the capillary dripper, aperture or drip irrigation belt will water drop by drop, even in the form of irrigation but slowly dropped near the root zone of the soil. Due to the small amount of drip, drop slowly buried, so in addition to soil moisture under drip irrigation emitters alone following is saturated, the soil moisture in other parts are in non-saturated soil moisture mainly through capillary tension infiltration and proliferation . Bi-million summary source of water-saving drip irrigation has the following advantages: (1) water-saving irrigation system entirely by piping water, there is little seepage and evaporation losses along the way; the case when local irrigation drip irrigation is generally only moist near the roots of crops part of the soil, irrigation flow is small, surface runoff and deep percolation less prone; in addition, drip can be timely and appropriate manner according to crop needs water than other irrigation methods, a higher utilization rate of water. (2) Energy-saving drip irrigation is running at low pressure, usually working pressure of 5-15 meters head (0.5-1.5 kg) can be lower than the sprinkler; because of drip irrigation than surface water-saving, high utilization of irrigation water , to lift water for irrigation this means reducing energy consumption. (3) drip irrigation system can be effective even control each emitter out of water, irrigation evenness, uniformity is generally 80 to 90%. (4) increase of drip irrigation can be timely and appropriate manner for fertilizer to the root zone, and some can also adjust the temperature and humidity between trees, will not cause soil compaction, crop growth provides a good condition, which is conducive to achieve high and stable yield, improve product quality. Practice proved that in many places, drip irrigation than other methods generally yield about 30%. (5) on the soil and terrain speed adaptable drip irrigation system can be fast or slow, low viscosity for infiltration rate of soil, irrigation rate may slow down, it does not produce runoff; for the infiltration rate is high The sandy soil, irrigation speed can be increased, irrigation time can be shortened or intermittent irrigation, doing both so often to maintain proper crop root zone soil moisture, but does not entail deep percolation. Since drip water pressure pipes, does not necessarily require the leveling of the ground. (6) Under certain conditions, can take advantage of salty drip of water can make crop root zone soil regularly to maintain a high water content, and thus lower local concentration of soil solution, osmotic pressure is relatively low, normal crop roots can not absorb water and nutrients by salinity hazard. Practice has proved that the use of saline water drip irrigation water salinity in 2 to 4 grams / liter, still normal crop growth, and a higher yield. But the use of salt water will drip drip wet form salts with peripheral spots, long-term use will make land degradation, therefore, in arid and semi-arid regions in the late irrigation season fresh water wash salt application. (7) labor-saving drip irrigation system does not need land leveling and ditching play plot, can be controlled automatically, greatly reducing the amount of labor in the field of irrigation and labor intensity.