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Application of Soil Tension Sensor in Soil Environmental Monitoring
Since ancient times, China has been a country with a large population and agriculture. Since the large population base will inevitably prompt people to pay attention to the development of agriculture, in order to solve the problem of food and clothing for the people, the small-scale peasant economy has become the main form of traditional Chinese economic development. The development of agriculture depends not only on producers, production tools, and production resources, but also on non-controllable factors such as climate and soil. When environmental factors fluctuate sharply, it is easy to cause agricultural disasters and cause agricultural workers’ troubles. Economic loss. Therefore, strengthening agricultural weather services, expanding the scope of agricultural environmental monitoring as much as possible, and doing disaster prevention work in advance will greatly help agricultural production. What is soil tension? During the growth of crops, soil moisture has an important influence on its water absorption and nutrient utilization. Real-time monitoring of soil moisture and mastering the law of soil moisture change can not only provide a basis for timely and reasonable irrigation, but also increase crop yields and reduce the occurrence of pests and diseases. Soil tension is the soil water potential, which is an index of soil moisture intensity. Its size is closely related to the fluidity and penetration depth of soil moisture, the effectiveness and difficulty of plants to absorb soil moisture. At the same time, it can indirectly reflect soil moisture. Generally speaking, the lower the soil moisture, the greater the soil tension, and the stronger the water suction, making it difficult for plants to absorb water from the soil; the greater the soil moisture, the weaker the soil’s suction power for water, and the easier it is for crops to absorb water. Absorb water in the soil. Application of soil tension sensor In modern agriculture, the role of soil tension sensor is very significant. The soil tension sensor can collect the soil moisture dynamic content of the planted crops. After collecting the data, the farmers can take more irrigation measures according to the growth of the crops. It can not only record the soil tension change data, but also help the grower. Continuously supplementing soil environmental data of crop types is of great significance to improving crop varieties and improving crop quality and yield. Data of the soil tension sensorThe soil tension sensor uses a transparent PVC plastic tube, which can clearly see the amount of water remaining in the equipment, which is convenient for adding water. The product is suitable for places that need to detect soil moisture and drought information, and is mostly used in agricultural crop planting to detect whether the crop is lacking water, so as to better water the crop. The soil tension sensor can directly observe the water level, has a fast response speed, and effectively perceives the soil environment. Not affected by salt ions in the soil, agricultural activities such as fertilizers, pesticides, and irrigation will not affect the measurement results. Support 10-24V wide voltage charging, adopt standard Modbus-RTU485 communication mode, communication can reach 2000 meters. How to use the soil tension sensor 1. Prepare cold boiled water (there is no air in the water), boil the tap water for 20 minutes, and place it to cool for later use. 2. Exhaust the clay head, unscrew the top end cap, unplug the silica gel plug, pour in cold water, stop the water injection at 2cm from the top of the PVC pipe, and stand the instrument upright for 10-40 minutes (without a lid), See the water dripping from the surface of the clay head, then plug the silicone plug and screw on the top end cap. Soil tension sensor installation location selection1. Install the equipment after the crop is sowed;2, the installation location needs to be flat;3, under the condition of full irrigation , Preferentially select the area with less water as the monitoring location;4. Under local irrigation conditions, select the humid area as the monitoring location;5. Select the crop that is balanced and can represent the growth of most crops Location;
OEM sensor sensor solution is generally used to environmental monitoring systems.
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