Prevent cold spells (1) Strengthen seedling management, cultivate robust plants, and increase plant resistance. (2) The timely irrigation before cold weather can reduce the degree of frost damage. (3) Multi-layer coverage. In the shed, 1 to 2 layers of small arch sheds can be added. The surrounding of the shed is surrounded by grass rakes to increase the temperature in the shed by 2 to 3°C. (4) Temporary temperature-increasing measures can be taken by temporarily increasing the number of fires and using electric wire heating. Proper colonization prevents cryogenic frost and high temperatures Vegetable greenhouses are generally covered with a single layer of film. The ability to increase temperature in the early spring or at night is limited. The temperature of the greenhouse is only 3~6°C higher than the outside, and sometimes there is an inversion phenomenon. Therefore, planting should not be premature, or it may easily cause freezing damage. . Use conditioners suitable for plant growth Plant growth regulators can strengthen the root system, reduce the time for seedlings and promote the growth of vegetable plants. For example, ABT rooting powder is a broad-spectrum, high-efficiency, compound-type rooting agent for plants, which can not only promote the development of root systems, but also have the effect of enhancing the resistance and disease resistance of vegetables, shortening the time for seedling sowing, early maturation, and increasing production. The application effect is better in production. Specific application: If ABT4 increase production spirit, add 0.1g 50g 95% alcohol, add 10kg of water can be used for foliar spray or root treatment 50 ~ 100kg per mu of liquid medicine. 2004-2021 New Laser Distance Sensor
Are you looking for a distance photoelectric sensor with mm high accuracy? Yes, JRT manufactured the industrial laser lidar sensor since 2004. There are different models of high accuracy sensor, high frequency distance sensors, ip54 ip65 ip67 waterproof rating etc., you can choose. The laser measuring modules, some good for outdoor using, some can be connected to your Arduino,
Chengdu JRT Main Ranging Modules: Industrial Laser Distance Sensors, Laser Rangefinder Sensor , Tof LiDAR Sensors.
smart devices,photoelectric sensor,cmos sensor,laser module,laser lidar Chengdu JRT Meter Technology Co., Ltd , https://www.accuracysensor.com
Also, Analog Output, RS485, USB cable is optional. If you have any other requirements of our accuracy distance sensor, please fell free to contact us