Changhong farmland water saving irrigation Products to browse
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Drip irrigation refers to watering farmland in the way of dripping. The dripping head and drip emitters installed on the capillary orifice or irrigation belt can water the crop root drop by drop evenly and slowly. Due to small amount and slowly buried of the droplets, only the soil under irrigation equipment are moist at saturation, but other parts of the soil are still in the unsaturated State. It is mainly by means of capillary pressure to achieve water infiltration and diffusion. Drip irrigation has strong adaptability which can be widely promoted. Irrigation should be adapted to local natural conditions and crop species.
Drip irrigation technology
Drip irrigation is carried out in accordance with crop demand through low-voltage pipe system and drip equipment installed on a capillary emitter which can send nutrients and water that crops require to the root drop by drop evenly and slowly. Drip irrigation does not destroy the soil structure. And inside water, fertilizer, gas and heat structure are often kept in good condition which is suitable for crop growth with little evaporation loss and won't cause runoff and deep leakage. It is a way of water saving. The main feature of drip irrigation is little water emitting with 2-12 liters per hour. So the watering duration is longer but irrigation cycle is shorter and you can form the habit of little water for more times. This kind of irrigation needs low working pressure with accurate water control that can reduce evaporation and water waste. Meanwhile, drip irrigation can achieve automation.
Drip irrigation principle
Drip irrigation system is mainly composed of the first hub, piping, and drop in the first three parts, the schematic diagram for drip irrigation system.
1. The first hub, including water pump (and the engine), fertilizer tank, filters, control and instrumentation, etc. Its role is pumping, fertilization, filter, with certain pressure will be a certain amount of water into the mains.
2. Line: including main and branch pipe, capillary, and necessary adjustment device (such as pressure gauge, gate valve, flow regulator, etc.). Its function is to transfer pressure water evenly to the head.
3. Drop head: its purpose is to make the water flow through the small hole, the formation of energy losses, reduce the pressure, to make it to drip drip into the soil. Drops the head is usually on the soil surface, also can shallow buried protection.
Drip irrigation principle
The principle of drip irrigation technology is this: with the water pump water from the water pressure, and then the pipe to each field ridge, there will be holes on pipeline, water will be under the action of gravity trickled into the crops. Farmers can also be fertilizers into the water, "hello" to the crop in the same way.
In drip irrigation way to quench thirst, pumps, pipes and so on investment will be more big, the cost is higher also, will reap a yuan an acre of land. Only a few vegetable base or on the economic value higher crop, is willing to give up this "net cost". And the use of drip irrigation technology, the key is to have a pond near water, rivers and Wells, otherwise is useless.
Drip irrigation benefits
Water, fertilizer, save work
Local micro irrigation, drip irrigation is a full pipeline and reduce water leakage and loss to the minimum. At the same time, and needed by the crop root zone can be timely supply moisture, there is no peripheral water loss problem, and water use efficiency is greatly increased. Irrigation can be easily combined with fertilization, i.e., dissolve the fertilizer after infusion into the irrigation system, due to chemical fertilizer combined with irrigation water, fertilizer nutrients evenly applied directly to the crop root layer, realize the synchronous water, greatly improving the effective utilization rate of fertilizers, at the same time as a small local control, micro irrigation, water leakage is less, so the appropriate amount of fertilizer can save to reduce pollution. With fertigation technology, timely trace elements supplement expensive for crops provides a convenient, and can avoid wasting. Drip irrigation system only by manual or automatic control valves, and combined with fertilization, so it can obviously save labor input, reduce the production cost.
Control the temperature and humidity
Conventional furrow irrigation of greenhouse, a large irrigation water, the surface moist for a long time, not only the canopy temperature, ground temperature decrease quickly, recovered slower, and evaporation capacity increasing, the indoor humidity is too high, easy to cause plant diseases and insect pests of vegetables or flowers. Because of drip irrigation to local micro-irrigation, most of the dry soil surface, and uniform drop head slowly to the root soil layer water supply, maintain of ground temperature, recovery, reduce moisture to evaporate, reduce indoor humidity has obvious effect. Using membrane under drip irrigation, namely decorate the drip line (with) under the membrane, the effect is much better. Additional drip irrigation because of easy operation, can implement high frequency of irrigation, and discharge hole is very small, the flow velocity is slow, each irrigation time is longer, the soil moisture change is small, it can control the root zone soil can keep for a long time in close to the most suitable humidity vegetables, flowers, etc. Due to control indoor air humidity and soil moisture, can obviously reduce the occurrence of plant diseases and insect pests, which can reduce the dosage of pesticide again.
Keep the soil structure
In the traditional channel border irrigation irrigation water, the larger the soil is more erosion, compaction and erosion, if not timely row scarification, can lead to serious harden and air permeability decline, to a certain extent of damage to soil structure. And drip irrigation is a trace of irrigation, water slowly evenly into the soil, the soil structure can play a role to maintain, and form the suitable soil water, fertilizer, heat environment.
To improve quality and increase efficiency
Applying reduces due to the application of drip irrigation, fertilization and pesticide content as well as the occurrence of plant diseases and insect pests, can obviously improve the quality of the products. Anyway, compared with the traditional irrigation methods, greenhouse or greenhouse facilities such as gardening after using drip irrigation, can greatly improve the product yield, early time to market, and reduce the sewage sludge, applying pesticide content and the cost of inputs such as labor, thus remarkable economic benefits and social benefits. Facilities horticulture drip irrigation technology to adapt to the modern agriculture of high yield, high efficiency, high quality requirements, this is also a root cause of the existence and vigorously promote the use.