Application of Flower Micro-sprinkler Irrigation Technology in greenhouse

Micro-sprinkler irrigation is a newly developed form of sprinkler for water-saving irrigation. compared with the general form of sprinkler irrigation, the pressure of micro-sprinkler decreases obviously, and it can effectively pray to save water, environmental protection and energy-saving, equipment investment and so on. at the same time, it has the advantages of adjusting the field climate, micro-sprinkler irrigation is mainly suitable for fruit trees, cash crops, flowers, lawns and greenhouses.

Micro-sprinkler irrigation brings huge business opportunities for the development of flower industry. With the help of the characteristics of small-scale irrigation and water conservancy, the construction of micro-sprinkler irrigation in high-grade intelligent greenhouse in flower park is carried out.

Micro-sprinkler Irrigation is the need of speeding up Flower production

The existing high-grade intelligent greenhouse in the flower park has more than 33.33hm2, and the production has reached a high level, and the output and output value are 10 to 20 times higher than those in the open field, but the existing irrigation technology is still the traditional artificial irrigation method, which greatly limits the development of the flower industry. Therefore, in order to improve the yield and quality of flowers on the existing basis, advanced micro-irrigation technology must be adopted to carry out reasonable and scientific irrigation according to the needs of flower growth, so as to create a good ecological environment for flower growth, such as water, fertilizer, gas, heat and so on. as a result, the remarkable effects of increasing production, income, saving water and labor can be achieved.

Engineering Design of Flower Micro-Irrigation

Micro-sprinkler irrigation equipment mainly includes emitters and pipes, so it is mainly the choice of emitters and pipes in micro-sprinkler irrigation. The irrigator with low flow rate should be selected for micro-spraying in greenhouse, and the irrigator should have good anti-clogging performance. The effluent is uniform and stable, strong and durable, simple in structure and easy to install. The pipeline should choose the pipe with good corrosion resistance and aging resistance, which can withstand a certain internal water pressure, the specifications and tolerances must meet the technical standards, the installation and construction is easy, firm and non-leaking, and it should be equipped with filtration device.

Design description: a total of 1287 Israeli atomized micro-sprinklers are selected for the whole sprinkler system, the design working pressure of the sprinkler is 3.0Bars, and the flow rate of a single sprinkler is 10L / h. the working pressure and flow rate of the system should meet the above requirements to ensure the normal operation of the micro-sprinkler system. The supervisor chooses U-PVC diameter as 63mm, the branch pipe chooses PE diameter as 25mm, and the pressure resistance is not lower than 0.8MPa, which ensures long-term stability and reliability. The form of irrigation on the shed is defined as cross atomization sprinkler. The first source of water is purified water, there is no problem with water quality filtration, net filtration can be done. Due to the particularity of planting high-grade flowers, the role of atomization and humidification is highlighted.

Micro-irrigation of flowers has achieved remarkable results.

(1) the benefit of water saving. All the micro-irrigation systems use pipelines to transport water, and there are few leakage and evaporation losses along the way. during irrigation, they only moisten part of the soil near the roots of crops, and the irrigation flow is small. In addition, micro-irrigation can supply water timely and appropriately according to the needs of crop growth. compared with other irrigation methods, the utilization rate of water is higher. According to the comparison of flower farmers, artificial irrigation needs 60m3 for each irrigation, while micro-sprinkler irrigation only needs 20m3 for each irrigation, and micro-irrigation saves 67% more water than artificial irrigation. Because the water used in flower irrigation is pure water, and the price of pure water is 3 yuan / m3, the water-saving benefit is obvious. Because the micro-irrigation system adopts the integration of water and fertilizer, saving water also means saving fertilizer.

(2) time-saving and labor-saving benefits. Artificial irrigation water goes with people. In the past, it took two workers 12 hours to irrigate each time, but now it only needs 30min to irrigate it, and there is no need for personal care, so it greatly saves manpower.

(3) the benefit of ecological environment. Micro-irrigation has greatly improved the crop ecological environment. In the past, when water was directly irrigated into crops, the water temperature of well water was low, which was not conducive to the absorption of heat from the air by water droplets in the process of micro-irrigation for flower growth, which increased the water temperature and reduced the greenhouse temperature, which was beneficial to crop growth, shortened the growth period, and made flowers on the market in advance. Due to timely and appropriate water supply, air humidity can be better controlled, so micro-irrigation is beneficial to temperature control and humidity control.

(4) Economic benefits. Micro-irrigation can timely and appropriately supply water to the crop root zone, adjust the humidity and temperature between pots, provide good conditions for flower growth, help to improve the quality of flowers, so greatly improve the economic benefits of flower farmers.

Generally speaking, the micro-spraying technology adopted by flowers in greenhouse is a kind of water-saving irrigation technology, which can be irrigated timely and appropriately according to the needs of flower growth, and the effect of irrigation utilization is high, and the loss of deep leakage is generally not considered. the effective utilization coefficient of water in soil is 0.95 and the uniformity of irrigation is more than 0.9, which has the advantages of water saving, time saving and labor saving.