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Show you the drip irrigation system


1. What is drip irrigation?

Answer: drip irrigation is in accordance with the requirements of the water requirement of the crop, using the water supply and fertilizer in the pipeline system, so that the irrigation water with the fertilizer is dripped, slowly and evenly irrigated to the crop root development area, so that the soil in the root zone of the crop is always kept in the best water bearing state.。

2. Can drip irrigation save fertilizer?

Answer: using the integrated water and fertilizer drip irrigation system, a small amount of fertilizer can be realized easily. It can be fertilized according to the rule of crop fertilizer. And it can reduce the waste of fertilizer caused by volatilization and leaching, thus greatly improve the fertilizer utilization rate, about 70% of fertilizer and about 84 yuan per mu. Generally speaking, the lower the soil fertility level is, the more obvious the effect of fertilizer is.

3. Can drip irrigation save irrigation labor?

Answer: drip irrigation and watering do not use land, do not have to ditch, cover soil, speed, the area of thousands of acres can be completed within one or two days of irrigation fertilization task, each year can save at least 200 hours per mu, irrigation and fertilization of drip irrigation facilities and fertilization, the operation control of the whole system can easily complete the irrigation application. The task of saving labor is very obvious for crop planting areas and mountainous orchards.

4. What are the common ways of drip irrigation?

Answer: according to the regional division of drip irrigation, drip irrigation can be divided into ground drip irrigation and underground drip irrigation. According to the effect of drip irrigation, drip irrigation can be divided into pressure compensation drip irrigation and non pressure compensation drip irrigation.

5. What are the main components of the drip irrigation system?

Answer: drip irrigation system is generally made up of water source project, head hub, transmission and distribution network, emitter and control, measurement and protection device.


   6. Can the drip irrigation system be divided into several categories?

Answer: according to the way of drip irrigation system to get pressure, it can be divided into self pressure drip irrigation system and machine pressure drip irrigation system.

7. What basic information do we need to collect for the drip irrigation system planning?

Answer: (1) geographical location and terrain data: latitude and longitude, altitude, natural geographical features; the overall irrigation area map of drip irrigation project; when collecting or measuring the topographic map of the irrigation area, the area of irrigation area, water source, power supply, power line and the location of villages, roads and main objects should be marked

(2) soil and engineering geological data: soil condition, soil thickness, soil acidity and alkalinity, soil water holding capacity, soil salt content, infiltration speed and soil fertility.
    (3) hydrological and meteorological data: annual rainfall, annual average evaporation, wind speed, dominant wind direction, annual average accumulated temperature, and depth of frozen soil.

8. How many years is the service life of the drip irrigation system?

Answer: drip irrigation pipe (belt) has many specifications, the wall thickness is from 0.2mm to 1.2mm. In recent years, 0.15mm and 0.18mm wall thickness drip irrigation belts have been launched. All drip irrigation tubes (belts) are added with anti aging materials. In the absence of mechanical damage, the service life of thick wall and thin wall drip irrigation pipes is the same. Many thin-walled drip irrigation belts have short life span, which is mainly mechanical damage, resulting in leakage. From the angle of mechanical damage, the longer the life of the thicker drip irrigation pipe is

       9. What are the typical enterprises of drip irrigation system in China?

    Answer: Dayu water-saving group Limited by Share Ltd, Xinjiang tianyye Group Co., Ltd., Inner Mongolia Mu He water-saving engineering equipment Co., Ltd., Gansu Rui yam Yatt high-tech agriculture Co., Ltd., Shanghai Hua Wei water saving irrigation company, Beijing Dongfang moisten ecological Polytron Technologies Inc, Guangdong Dahua water saving technology stock Ltd., Hebei run agricultural water-saving Polytron Technologies Inc.

10, which crops are suitable for the installation of drip irrigation?

A: purely from a technical point of view, all crops can be fitted with drip irrigation, and the evaluation of whether a crop is suitable for installation of drip irrigation is mainly from the economic angle and the way of crop planting. Datian cropping crops, potted plants, various mountain crops, economic forests and medicinal herbs can be used for drip irrigation. At present, the largest area is cotton, potatoes, sugarcane, corn, grapes, flowers, greenhouse vegetables, beets and other crops.


11. Does trickle drop and drop of water yield water that small enough to meet crop water requirements?

Answer: Yes. In fact, emitter flow has many choices, and the common range is 0.8~10.0 liters / hour. The choice of the dripper flow is mainly determined by the soil texture. Usually the more sticky the texture is, the smaller the dripper flow is, the drop of the drop head per second is very small, but the irrigation time is long.

12. How to choose the right drop head?

Answer: it is very important to choose the emitter rationally according to the soil properties. In sandy soil, large flow drops should be selected to increase the lateral diffusion range of soil water, and small flow drops should be chosen in sticky soil so as to prevent the ground water to fully permeate the soil water.

13. What is the water quality requirement for drip irrigation?

Answer: as the drop head is a precise component, there is a certain requirement for the granularity of the impurity in the irrigation water. The drip irrigation requires that the particle size is not more than 120 mesh, so that the drop head is not blocked.

14. How to choose a filter?

Answer: filter is an important factor affecting the use time of drip irrigation system. Choosing suitable filter can ensure the good operation of drip irrigation system. The commonly used filters include sand gravel separator, medium filter, net filter and stacked filter. The first two are used for primary filtration, and the latter two are used for two stage filtering. Filters have many specifications, and what filters and combinations to choose are mainly determined by water quality.。


    15. Is organic fertilizer applied to drip irrigation?

Answer: drip irrigation system is a liquid pressure water delivery system. Obviously, it can not directly use solid organic fertilizer. But we can use organic fertilizer retting biogas slurry, after sedimentation, filtration and application. Chicken manure, pig manure and other retting after filtration use. The three level filtration system was first filtered with 20 mesh stainless steel mesh, then filtered with 80 mesh stainless steel mesh, and then filtered by 120 mesh stack filter. The application of liquid organic fertilizer through the drip irrigation system not only overcomes the disadvantages that can be caused by the simple application of chemical fertilizer, but also saves labor and labor, and the fertilizer is uniform and the fertilizer efficiency is remarkable.

16. What are the common ways to fertilize through drip irrigation system?

Answer: according to the different arrangement of the drip irrigation system, many methods of fertilization can be used, such as gravity self pressure fertilization, pump injection, pressure differential fertilization, Venturi fertilization and proportional fertilization. The specific method of fertilization should be consulted by professional personnel or more detailed information.。

17. How to avoid excessive irrigation in the process of drip fertigation?

Answer: drip fertigation only irrigated the roots and fertilized the roots. Therefore, we must know the depth of the root distribution of the crops under management. The simplest way is to dig out the root layer with a small shovel to see the depth of the wetting so as to determine whether there is excessive irrigation.

18. In the rainy season, soil is not short of water. How to fertilize through drip irrigation system?

Answer: fertilization should be carried out as usual when soil is not short of water. Generally, when the rain is stopped or when the soil is slightly dry, fertilizer must be speeded up. The general control will be completed in about 30 minutes. Without washing the tube after fertilization, and then washing the tube after the weather is clear, if the conductivity meter can be used to monitor the conductivity of the soil solution, the time of fertilization can be controlled accurately, and the fertilizer can not be leached.

19. Is it necessary to build a reservoir for drip irrigation in the hilly orchard?

Answer: not necessarily. In order to save expenses, the height of the orchard is in 15 meters, and the installation of drip irrigation usually does not need to build a reservoir. As long as the pump of suitable lift and flow is selected, a reservoir is built at the highest place of the orchard in the highest place of the orchards, and the gravity drip irrigation system is used to save money.

20. Why do we need pressure compensating emitter for drip irrigation in Mountain Orchard?

Answer: emitter is divided into ordinary emitter and pressure compensation emitter. The flow rate of a common emitter is proportional to the pressure, usually only on flat ground. The pressure compensated emitter can maintain a uniform constant flow within a certain range of pressure. The mountain orchard, the tea garden or the forest area often have different degrees of height difference. The common dripping will lead to the unevenness of the water, which usually shows the high water and the low water.

21, why can drip irrigation PE tubes be exposed to the ground?

Answer: as the physical and chemical properties of polyethylene (PE) are easy to be photooxidation, thermal oxidation, and ozone decomposition, it is easy to degrade under ultraviolet radiation, so ordinary PE pipes are not suitable for use in the open field. The PE pipe specially used for drip irrigation can be used for more than 10 years in the open field due to the addition of anti-aging agents.

22. Why is the PE pipe not as thick as possible?

Answer: the secret of long life of PE pipes for drip irrigation is the addition of anti-aging agents. Therefore, simply increasing the thickness of pipes does not extend the service life. Whether raw materials selected from PE are raw materials also affect the service life of the products.

23, why should drip irrigation projects have professional teams to design and install?

Answer: the design of the drip irrigation system involves hydraulic, soil, climate, crop cultivation, plant nutrition and other professional knowledge. Usually, the user can not master so much professional knowledge. It is best designed and installed by professional personnel to ensure the correct use and use of its advantages.

24. How does the price of the drip irrigation system constitute?

Answer: the cost of drip irrigation system is mainly composed of three parts: design fee, equipment and material fee, installation fee and so on. The specific price depends on the factors such as terrain condition, height difference, planting density, soil condition, water source condition, traffic condition, type of fertilizing equipment, system automation degree, material model specification, system service life, technical service grade and so on.

25. As an example of fruit trees, is it cost-effective to install drip irrigation?

Answer: the construction cost of the drip irrigation system with high standard is about 1000 yuan / mu, the design life is 10 years, and the annual cost is 100 yuan / mu. After the installation of drip irrigation, it can save the expenditure of fertilizer on one hand. According to the calculation of 30% fertilizer, it can save 30 to 50 yuan per mu per year; on the other hand, it can increase the output and quality, increase the income, increase the income by 10%, and increase the income of 120 to 800 yuan per mu each year, which does not take into account the recessive value of the labor saving and the guarantee of the high yield.

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