In cloudy snow and cold weather, crops covered with high ridge cultivation and mulching film have better anti-freezing ability. The following analysis of the advantages of the two cultivation methods:
High-Ridge Cultivation: Soil surface area is an important factor affecting soil temperature. The use of high ridge cultivation can significantly increase the surface area of ​​the soil. The soil absorbs more calories and warms quickly. Not only does it have a high soil temperature but also a thick layer of hot soil, which has a lot of calories accumulated. A higher soil temperature will help improve the vitality of the root system, thus increasing its resistance to cold, thereby reducing the occurrence of cold and freezing damage.
Plastic film cover: After the soil covers the plastic film, the evaporation of moisture is suppressed, thereby reducing the consumption of heat in the greenhouse and increasing and stabilizing the temperature in the greenhouse. According to statistics, a 350-cubic-meter greenhouse will evaporate at least 10-15 kilograms of water from the soil every day, losing 24,325-36,488 kilojoules of heat, which will increase or decrease the temperature within the shed by 7-10°C. Therefore, mulching is an effective measure to maintain the heat balance, stabilize the temperature in the shed, and prevent freezing damage. When covering the film, it is necessary to cover the entire area between the rows and between the plants, and to cover all areas with the aisles and the front of the greenhouse.
High Precision Distance Sensor
Laser range sensors combine the advantages of a visible red sensing beam with the increased range of a laser. The optical distance sensor devices are Class 2 lasers, support Class 1 customized. The high precision autonics distance sensor is successfully be used to connect to Arduino, Raspberry Pi, with +-1mm to 3mm high accuray, and long-range solutions (max up to 150m) for your application.
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