Soil fertility encompasses elements such as moisture, nutrients, air, and heat, and can be divided into natural fertility (the fertility of natural soil before reclamation and utilization) and artificial fertility (fertility created through agricultural technical measures such as cultivation, fertilization, and irrigation).
Soil, the atmospheric environment, water, and plants form a complex ecosystem. The interaction and influence among various factors cause continuous changes in soil fertility. With the development of the Internet of Things, sensing technology, and agricultural planting techniques, agricultural planting has shifted towards refinement and data - driven methods, and the soil moisture monitoring station has been developed. Its core function is to accurately monitor the natural fertility of the soil through sensors, adjust the input of artificial fertility accordingly, and formulate intelligent management plans that suit the growth of crops.
The soil sensor, a key component of the soil moisture monitoring station, such as the soil three - in - one transmitter, can comprehensively monitor soil moisture content, electrical conductivity, and temperature. It adopts the international standard method for measuring soil moisture and is an important tool for observing and researching the occurrence, evolution, improvement of saline - alkali soil, and the dynamics of water and salt.
This transmitter is designed to be compact, easy to carry and transfer, and simple to install, operate, and maintain. Even non - professionals can easily handle it. The electrodes are made of specially treated alloy materials with high strength, which can withstand external impacts and reduce the risk of damage. The external epoxy resin pure colloid packaging is completely sealed, with an IP68 protection level, which can resist harsh acid - base corrosion environments and work stably when buried in the soil.
The probe of the transmitter adopts a plug - in design, with high accuracy, fast response, good interchangeability, and reliable performance. It is equipped with a built - in temperature compensation sensor with a compensation range of 0 - 50°C, which can eliminate the interference of temperature changes on the measurement results and improve accuracy.
There are two detection methods: vertical measurement and buried measurement.
Rapid measurement (vertical measurement): Select an appropriate location, avoid areas with stones, remove the surface soil according to the measurement depth, maintain the looseness of the soil, insert the sensor vertically, and keep it stable without shaking. To improve accuracy, it is recommended to take multiple measurements at one measuring point and calculate the average value. This method is suitable for quickly obtaining soil data and initially understanding the soil conditions.
Long - term measurement (buried measurement): Dig a pit vertically with a diameter greater than 20 cm. Insert the steel pins of the sensor horizontally into the pit wall at the 预定 depth, fill it tightly, and after it stabilizes, continuous measurement and recording can be carried out for several days, months, or even longer, providing data support for studying the long - term evolution of soil fertility and the changes in the soil environment during the growth cycle of crops.
After the soil transmitter monitors the soil moisture content, electrical conductivity, and temperature in real - time, the data is uploaded to the cloud platform through the meteorological monitoring host. The data is visually displayed and stored on the cloud platform interface, with a high degree of intelligence and automation in the process.
Users can flexibly set the upper and lower limits of soil moisture content, temperature, and electrical conductivity through the monitoring host or the cloud platform according to their needs. For example, when the soil moisture content is lower than the set limit value, the cloud platform automatically sends a linkage command to the host, and the host commands the M88 industrial control module to turn on the irrigation equipment to supplement water; when it approaches the upper limit value, the system automatically turns off the irrigation system to avoid over - irrigation.
In the field of agricultural planting, the soil moisture monitoring station monitors soil moisture in real - time, promptly detects changes in soil fertility, provides an accurate basis for scientifically adjusting the input of artificial fertility, and helps to increase the yield of crops.
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