Simple Drip Irrigation Technology in American Grape Shed
Drip irrigation is the most ideal technology for water irrigation in the greenhouse in the United States. It has the advantages of water saving, production increase, cooling, labor saving and high efficiency. First, simple drip irrigation production: In the shed, a reservoir with a capacity of 3-5 cubic meters and a height of 1-3 meters will be built. Gate valves and water meters will be installed at the outlet pipe of the pool, and 38 mm plastic pipes will be used as the capillary pipes within the greenhouse. Pool water outlets are connected. There are two types of branch and capillary arrangements: 1. Lay the capillary along the length of the shed: In the shed, use a 25 mm plastic tube as the vertical connection between the branch tube and the capillary tube, and install the gate valve on the branch tube; parallel to the capillary tube and vertical to the branch tube in the shed. A plastic tube with a diameter of 15-20 mm and a length equal to the length of the canopy is installed every 1 meter spacing, and a plastic capillary tube with a hole pitch of 35 cm and a hole diameter of 1.0-1.3 mm is attached on the tube wall as a capillary tube, and the composition is simple. Drip irrigation nets are covered with mulch on the capillary tube and vegetables are grown on the membrane. The advantage of this arrangement is that it is easy to operate and conducive to management. 2, along the shed across the layout of the capillary: with a number of lengths are 4 times the length of the porous plastic capillary across the shed, the first end and the shed side of the branch pipe connected parallel shed across four curved layout, covered with plastic film on the tube, inter-film planting vegetables. The advantage of this arrangement is that the vegetables in the greenhouse have sufficient sunshine and are conducive to growth and development. Second, the simple drip irrigation application in greenhouse vines in the main features: 1, save water: According to the test, simple drip irrigation water utilization rate of 95% -98%, 45% more than the sprinkler irrigation, water saving 60% than the ground irrigation. 2, cheaper cost: simple drip irrigation per 667 square meters (1 a) investment of more than 500 yuan, is the United States raisant micro-spray technology investment. 3, increase the temperature of the greenhouse: the use of simple drip irrigation than greenhouse irrigation in greenhouses to improve the temperature of about 5 °C, so that the United States Tizi mention the city for about half a month. 4, in addition to blocking easy: Simple drip irrigation capillary on the surface, easy to find the problem of plugging, local hole blocking can also be dealt with at any time. 5. Saving fertilizer: The chemical fertilizer topdressed by the greenhouse vegetable is put into the pool with the water droplets applied to the soil layer in the rhizosphere of the crop to avoid the loss, leakage and volatilization of the fertilizer.