The role of soil moisture sensor in agriculture

Soil moisture sensor


Efficient irrigation management can improve yields, grain quality, conserve water and energy, and reduce nutrient leaching. One of the easiest and most effective ways to improve irrigation efficiency is to implement soil sensor technology in irrigation scheduling. This article provides basic knowledge and practical recommendations for using soil moisture sensors for irrigation scheduling.​


How Do Soil Sensors Work?

Soil moisture sensors measure the water content in soil, and can be used to estimate the amount of stored water in a profile, or how much irrigation is required to reach a desired amount of saturation. These sensors can be portable and used for instant measurements or installed for long-term monitoring. No commercially available soil moisture sensors measure water directly. Instead, they measure changes in some other soil property that is related to water content in a predictable way. The other soil property becomes a proxy for water content. Regardless of the technology used in a sensor, the same principle applies: the bulk dielectric permittivity of soil changes with volumetric water content.

How to judge soil moisture after irrigation

Irrigation trigger points may vary by crop, growth stage, and pumping capacity of the irrigation system.Irrigation should be triggered when the percentage of soil water consumption is equal to or close to the irrigation trigger point.The measurement of water content provided by the soil moisture sensor after heavy rain for 12-24 hours is the field capacity of the soil.You can also track your water movement by taking measurements immediately after an irrigation event. If the bottom of the sensor reads zero after irrigation, this means that the amount of irrigation is probably more than requiredBut if it doesn't show any change in value, it means you're irrigating less.

Advantages of soil sensors

1.The probe and fuselage shell have high density epoxy resin shell only with good airtight performance.
2.The body shell is waterproof and corrosion resistant. The waterproof grade is IP68 to ensure the long-term operation of components.
3.The probe is made of Austenitic-316 stainless steel, rust resistance, electrolysis resistance, salt resistance and corrosion resistance.
4.Imported high quality chip is used inside the sensor, low power consumption, high sensitivity and stable signal.


And you want to know about soil sensors where you can find everything

  • 在需要深度的判断行内的植物之间设置固定温度。
  • 传感器,以便他们在现场的设备可以观察到他们的位置并阻止损坏。
  • 不要将传感器在靠近枢纽轴轨道的位置,并确保传感器与地面直接接触,并且在安装过程中对土壤的干扰最小化。
  1. 通过一个洞或沟,在不同的深度安装传感器或传感器
  2. 通过使用钻研或实地勘测并垂直安装传感器。




大多数传感器可以覆盖 1 到 2 英亩的面积,有些可以覆盖更多。从电阻值、中子值和介电值间接检测,再根据刻度标定,找出水分含量。

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