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Drip irrigation in greenhouses must use filters.

Release Date:

2019-09-04

Water sources must be filtered, typically using 120-mesh nylon or stainless-steel mesh, or a 120-mesh disc- or screen-type filter. This is crucial for the proper operation of a drip-irrigation system. Filters should be cleaned regularly, and the end of the drip irrigation tubing should be opened periodically for flushing—usually once a month. Before fertilizing, first design a fertilization plan based on the specific crops being grown and prepare the necessary fertilizers. For each irrigation zone, stock the exact amount of fertilizer required for each application according to the fertilization plan. Drip irrigation, as one of the most water-efficient irrigation methods, has attracted considerable attention from farmers. In recent years, it has received tremendous emphasis in China and has been promoted on an unprecedented scale, with a rate of development that has far exceeded expectations. Drip irrigation is, quite simply, drip-by-drip watering.

The water source must be filtered; 120 is commonly used. Nylon mesh or stainless steel mesh; or use 120 Sand-media and screen filters are essential for the proper operation of a drip irrigation system. Filters must be cleaned regularly, and the end of the drip irrigation tubing should be opened and flushed periodically—typically once a month. Before fertilization, develop a fertilizer application plan based on the specific crops being grown and prepare the necessary fertilizers. For each irrigation zone, stock the exact amount of fertilizer required for each application according to the planned schedule.

Drip irrigation as a water-saving measure relatively One of the best irrigation techniques has attracted considerable attention from farmers. In recent years, drip irrigation has garnered significant attention in China and has been promoted on an unprecedented scale, with a rate of development that has far exceeded expectations.

Drip irrigation is a water-delivery technique in which pressurized water is conveyed through a drip-irrigation pipeline system to lateral laterals, and then delivered via emitters—such as drippers, orifices, or drip tapes—installed along the laterals, so that water is applied to the soil in uniform, slow-dripping droplets to meet the water requirements of crop growth. It is a form of localized irrigation.

Due to the small flow rate of the drip emitters, water infiltrates the soil slowly; consequently, under drip irrigation, only the soil immediately beneath the emitter remains saturated, while all other soil zones remain unsaturated. Soil moisture primarily infiltrates and diffuses under the influence of capillary suction. With proper control of irrigation duration, there is virtually no percolation loss, and because drip irrigation results in a small wetted surface area on the soil surface, evaporation losses are significantly reduced, leading to very substantial water savings.

 

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