Soil NPK sensor measures soil nutrients

The importance of using soil NPK sensors:

Soil nutrient content can be easily measured using soil NPK sensors. Measuring soil content N (nitrogen), P (phosphorus) and K (potassium) is necessary to determine how much additional nutrients will be added to the soil to improve crop fertility.

Soil fertility was measured by soil NPK sensor. The main components of soil fertilizers are nitrogen, phosphorus and potassium. Knowledge of soil nutrient concentrations can help us understand nutrient deficiencies or abundance in soils used to support plant production.

Measurement method of soil nutrient:

There are many ways to measure soil nutrient content, such as using optical sensors or spectrometers. However, spectral analysis methods are not convenient, and the disadvantage is that only 60-70% of the data are correct. While comparing the spectral analysis method with the traditional wet chemical method, due to the lack of data in this area, the accuracy of the product has yet to be fully resolved.

Therefore, here we will use the clear information soil NPK sensor to detect soil nitrogen, phosphorus and potassium in the soil. The NPK sensor is a low-cost, fast response, high precision and portable sensor that works in conjunction with Modbus RS485. The advantage of this sensor over traditional detection methods is that it provides very fast measurements and the data is highly accurate.

soil NPK sensors
Soil NPK sensor introduction:

Soil NPK sensor is suitable for detecting the content of nitrogen, phosphorus and potassium in soil. It helps determine soil fertility and thus facilitates systematic assessment of soil condition.

Sensors can be buried in the soil for a long time. It has high quality probe, rust resistance, electrolytic resistance, salt-alkali corrosion resistance, to ensure the probe part of the long-term operation. Therefore, it is suitable for all kinds of soils. Suitable for testing alkaline soil, acid soil, basal soil, seedbed soil and coconut bran soil.

The sensor does not require any chemical reagents. It can be used in any microcontroller because of its high measuring accuracy, fast response speed and good interchangeability. Since the sensor has a Modbus communication port, it is necessary to require any Modbus module (such as RS485/MAX485) and connect the sensor to the microcontroller.

The sensor operates on 9-24V with very low power consumption. When it comes to sensor accuracy, it’s up to 2%. Nitrogen, phosphorus and potassium are measured with resolutions up to 1mg/kg (mg/ l).

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