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Application of Soil Temperature and Moisture Sensor in Plant Growth

by:Rika Sensors     2021-11-19
Application of Soil Temperature and Moisture Sensor in Plant Growth
Soil temperature and moisture sensors have very important applications in the process of plant growth. Changes in soil temperature and moisture will directly affect the absorption efficiency of plant roots of nutrients, which in turn affects the final yield and quality. In order for plants to grow healthily, we need to keep the soil temperature and moisture at an appropriate level to ensure that the plants are in a good growth environment. For this reason, we need to strengthen the monitoring of soil temperature and moisture.

Specifically, in agricultural production, the growth of vegetables, fruits, vegetables, flowers and other plants is affected by soil temperature and moisture. Let’s take fruit trees as an example to analyze the influence of soil temperature and moisture on fruit tree growth; temperature ( Annual average temperature, accumulated temperature during growth period and extreme low temperature in winter) are environmental factors that can affect the geographical distribution of fruit trees. Normally, the soil temperature required by northern deciduous fruit trees is mainly concentrated in the range of 12~25℃. If the temperature is too high, the growth and development of the root system will stop. If the temperature is too low, the microbial activity in the soil will be weakened, which will affect The decomposition of organic matter in the soil reduces the nutrient content available for fruit trees.

The impact of water on fruit trees is reflected in the various stages of growth. Before the fruit trees germinate, generally fruit trees require a relatively large amount of water; during the flowering period, fruit trees have stricter water requirements. It causes flower and fruit drop; when the new growth period is reached, the fruit tree needs the most water. It can be seen that in agricultural production, the use of soil temperature and moisture sensors to detect soil temperature and moisture is indispensable.

The soil temperature and moisture sensor is suitable for the measurement of soil temperature and moisture. It has high accuracy, fast response and stable output after comparing with the German original high-precision sensor and calibrating by the actual soil drying weighing method. It is less affected by the salt content of the soil and is suitable for various soil qualities. Can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum potting, and completely waterproof.

There are two measurement methods for soil temperature and moisture sensors, namely the rapid measurement method and the buried measurement method.

Quick measurement method: select a suitable measurement location, avoid rocks and similar hard objects, throw away the surface soil according to the required measurement depth, maintain the original slackness of the soil below, hold the sensor firmly, and insert the soil vertically , Don't shake left and right when inserting. It is recommended to average multiple times for a small range of a measuring point.

Buried measurement method: Vertically dig a pit with a diameter of about 20cm, and insert the sensor needle into the pit horizontally according to the measurement needs, and fill and compact the pit to ensure that the steel needle is in close contact with the soil. Wait for the sensor to stabilize for a period of time. After that, you can perform continuous long-term measurement and recording.

When measuring, please note that the steel needle must be fully inserted into the soil, and avoid strong sunlight directly on the sensor body and cause the temperature to be too high. Pay attention to lightning protection when using in the field. Do not violently bend the steel needle, do not pull the sensor out of the wire forcefully, and do not hit or violently hit the sensor. Due to the presence of radio frequency electromagnetic radiation in the air, it is not suitable to stay energized in the air for a long time.

As can be seen from the above, we insert or bury the probe of the sensor in the measured soil to monitor the soil temperature and moisture value. The current temperature and moisture value is obtained through the monitoring of the soil by the sensor and uploaded to the monitoring platform in real time.

The monitoring platform has an alarm function, which can set the upper and lower limits of temperature and moisture. When the temperature and moisture values u200bu200bare too high or too low, they can be alerted in time through the platform interface warning, SMS warning, sound and light warning, etc., by the manager Respond based on the warning result. In addition to real-time monitoring of the system's operating conditions, the monitoring platform can also record and analyze historical data, as well as download and print data, which is convenient for scientific research.

The soil temperature and moisture sensor is currently used in agriculture to detect the soil temperature and moisture required for plant growth. The sensor is widely used in scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grassland pastures, Rapid soil measurement, plant cultivation, sewage treatment, grain storage, and measurement of moisture content and temperature of various particles.



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