Soil moisture is the main source of crop moisture. Soil moisture content directly affects the growth status of plants. At the same time, it has a certain influence on the growth process of crops and the yield of crops. It is precisely because of this laid the importance of soil moisture detection. In the moisture detection process, the conventional drying method is generally used as the most accurate detection method. However, the drying method is time-consuming and laborious. At the same time, real-time monitoring cannot be performed. In the detection process of farmland soil moisture, an automatic monitoring method is generally used. Using the real-time monitoring of the soil moisture measuring device with timed positioning, or using the portable soil moisture measuring instrument for manual monitoring, the automatic detecting method may have certain errors due to many factors such as the environment, but the automatic monitoring data and the manual observation data have The law of change is consistent, so you can establish the equation by understanding the relationship between the two to ensure accuracy.
Using soil moisture real-time monitoring system to carry out automatic monitoring of soil moisture in Nanning, and also used drying method to accurately detect soil moisture in Nanning. Through monitoring, two sets of data were analyzed, in addition to 30-40cm automatic soil moisture monitoring. In addition to the large changes in data, other levels of automatic soil moisture monitoring have the following regular changes:
0~5cm: Y=36.218+0.604X
5~10cm: Y=64.669+0.278X
10~20cm: Y=67.848+0.450X
20~30cm: Y=48.692+0.940X
40~50cm: Y=63.957+0.733X
50~100cm: Y=38.108+0.572X
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