Flower culture and pruning technology, micro-spray system and artificial fog system commonly used in irrigating flowers

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(1) Micro-spray system

(2) artificial fog system

Micro-sprinkler is one of the common ways of water-saving irrigation. The micro-sprinkler irrigates crops in the state of spraying water flow. In the micro-spray system, all kinds of micro-sprinklers and sprinkler belts are commonly used emitters. The micro-sprinkler system used for flower cultivation in the open field usually lays sprinkler belts on the surface or inserts the micro-sprinkler; in facility horticulture, the micro-sprinkler is usually hung upside down from the skeleton of the facility to avoid affecting the micro-spray system to irrigate other crops.

Rotary micro-sprinkler and scattered micro-sprinkler are the two most common sprinklers in micro-sprinkler system. In general, the function of rotary micro-sprinkler is to supplement irrigation, while scattering micro-sprinkler is divided into refractive micro-sprinkler and centrifugal micro-sprinkler, which has two functions of irrigation and humidification and cooling. Centrifugal micro-sprinkler is often used for atomization irrigation in soilless cultivation and has the effect of humidification and cooling.

In order to create field microclimate, drip irrigation and micro-spray should be combined, mainly drip irrigation, and micro-spray system is mainly used for supplementary irrigation and humidification and cooling.

When using the micro-spray system, you should pay attention to the following:

1. When the micro-sprinkler is installed upside down, an anti-drip device must be installed to prevent the micro-sprinkler from causing harm to flowers after the water is stopped.

two。 In the facility, the micro-sprinkler system and the drip irrigation system share the same water source at the same time. It is necessary to install a pressure reducing device in the drip irrigation system or a local pressure device in the micro-sprinkler system to prevent the drip irrigation system from blasting or the micro-sprinkler system from not spraying.

3. The micro-spray device must be cleaned regularly, it is recommended to clean after each irrigation, and it is taboo to remove the filter element.

The following is a brief introduction to the irrigation method of greenhouse flower artificial fog system, which mainly refers to the irrigation method in which emitters are used to spray crops in the form of fog.

The working pressure of artificial fog system is very high, generally from 4MPa to 12MPa, the atomization effect is good, usually the high-grade flowers in multi-span greenhouse are commonly used for humidification and cooling, artificial fog system can also be used for spraying and disinfection.

When using artificial fog system, we should pay attention to:

1. The outlet diameter of the artificial fog nozzle is very small, and the requirement for water quality is very high. Softened water is usually used to prevent the nozzle from clogging. Once the nozzle blockage occurs, the sprinkler can be removed and cleaned with an ultrasonic cleaner.

two。 The booster pump of artificial fog system needs regular maintenance and oil change.

3. The artificial fog system is generally controlled by an automatic control system, which is automatically turned on and off according to temperature and humidity.