Soil pH is a crucial parameter that affects the availability of nutrients to plants and the overall health of soil ecosystems. Monitoring soil pH is essential for optimizing agricultural practices, understanding soil dynamics, and ensuring proper plant growth. Soil pH sensors play a vital role in this process by providing accurate and real-time measurements of soil acidity or alkalinity. In this article, we will explore the working principles, types, calibration, and applications of soil pH sensors.


Working Principles of Soil pH Sensors:
Soil pH sensors operate based on different principles, including potentiometric, colorimetric, and optical methods. Let’s delve into each principle: