California agricultural water-saving irrigation Inspiration

California, developed agriculture and water resources are relatively scarce, to solve this problem, a variety of water-saving projects in California to take technical measures, it can be said the world's advanced water-saving irrigation technology in California have been a better application.

First, the surface irrigation technology surface irrigation technology in the United States dominate agricultural irrigation, more than 60% of agricultural irrigation irrigation using this technology, its methods are furrow, border irrigation. American furrow and border irrigation is the result of technological improvements, which combines the latest technological achievements of modern scientific research achievements, so the traditional irrigation methods in the United States has a high technological content.

(A) furrow irrigation. Furrow irrigation is the main body of American ground, accounting for over 70% of surface irrigation, mainly used in fruit and cotton, peanuts, vegetables and other row crops planted trees type. For fruit trees, according to the different spacing, generally between two rows of fruit trees to open three to five irrigation ditch, field crops are arranged according to their characteristics planting irrigation ditch. Matched with furrow irrigation equipment are: multi-port door hydrant. This hydrant out of the ground 30 to 40 cm, uniformly disposed around the hydrant outlet several small gates, each outlet a little water, corresponding to an irrigation ditch, this hydrant has eight ports up to the door, while to eight irrigation ditch irrigation. Multi-outlet pipes. Such tubes are mostly aluminum tube, aluminum tube in the irrigation ditch with a pitch on the other laid small gates, each gate corresponds to a small irrigation ditch, irrigation or water supply can be based on need, one or more ports open door for irrigation, but also for rotation irrigation. Such tubes are terrestrial mobile tube, close up when crop cultivation, planting after the tube placed at the edge until the harvest. Siphon. This tube is an ordinary rubber tube or a soft plastic tube. Water is delivered to the field through seepage channels, and through the sluice will raise the water level so that the water level above the soil surface, using the siphon principle, a ditch a water evenly to the field. Furrow pulse generator. Water flow through the pipe, the pulse generator according to the instruction, so turn on the water, the water flow is generally larger in irrigation ditch fast forward, time lag, and then a second, third punch irrigation, irrigation requirements until , the use of this technology compared with conventional furrow irrigation water savings of 25% to 30%, long stretch also increase. Tail water utilization technologies. As traffic is large, furrow irrigation water to move forward very quickly, within a short time you can sink to the edge, but this time not reached the amount of irrigation field irrigation requirements, this should continue for some time, so the water will continuously From the edge of outflow; tailrace to take advantage of these, the United States therefore take tail water recycling technology, is set at the edge of digging a ditch, the tail water collected and re-use of low-lift pump the water feed pipe, recycling.