Qingyuan vegetable farmers should strengthen the prevention and treatment of diseases in the late stage of vegetable growth, directly reduce the number of pathogenic bacteria, and after the harvest of each stubble vegetable, thoroughly remove the residual branches and leaves of the field. For vegetables that are susceptible to root diseases, the residual roots should be removed. The purpose of deep ploughing is to destroy the living environment of the germs. Generally, it is required to plough 40 cm deep after each harvest. With the help of natural conditions, such as low temperature and ultraviolet rays, some of the germs are killed. Disinfection During the summer vegetable stubble gap, after deep ploughing, irrigate enough water, cover with plastic film for high temperature disinfection, so that the maximum temperature of the soil layer 10 cm reaches 70 ℃, can kill a large number of germs, this is a simple and effective prevention and control method. Reasonable rotation rotation can not only improve the stress resistance of the crop itself, but also make the pathogens hidden in the ground reduce or lose the infection ability after a certain period of time. There are two types of vegetable rotation: one is the rotation between vegetables and vegetables, and it is required to determine the interval between the cultivation of similar vegetables according to the survival time of the pathogens in the soil; the other is the rotation between vegetables and food crops. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone
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1. Select a low-power controller. The controller will work 24 hours a day. If its power consumption is large, it will consume part of the power. A good choice is a controller that consumes less than 1 mA.
2. Select a controller with high charging efficiency. The controller of the MCT charging mode can automatically track the high current of the panel. Especially in winter or periods of insufficient light, the efficiency of MCT charging mode is about 20% higher than other charging modes.
3. Select the controller for bidirectional power regulation. Controllers with power regulation have been widely promoted. When there are few pedestrians at night, one-way or two-way lighting can be automatically turned off to save electricity. It can also adjust the power of the LED lights.
In addition to the above power-saving functions, attention should also be paid to the protection functions of the controller for components such as batteries. In addition, when setting the under-voltage protection value of the controller, try to adjust the under-voltage protection value to ≥ to prevent the battery from over-discharging.