The pH sensor is a device that is used to measure the acidity or alkalinity of the soil. The pH scale ranges from 0 to 14, and a pH value of less than 7 is considered acidic, a pH value of greater than 7 is considered basic, and a pH value of 7 is considered neutral. The ideal pH for plant growth and development is 7, however, some plants can tolerate slightly acidic pH values.
Soil pH sensors are typically waterproof and dustproof and are designed to be inserted directly into the soil to take a measurement. The sensor typically consists of two electrodes: one of which is sensitive to hydrogen ions and a voltage measurement circuit that converts the hydrogen ion activity into a pH value.
The use of a pH sensor in permaculture is essential for monitoring soil acidity or alkalinity. It helps farmers to understand the pH levels of their soil and make informed decisions about how to make the best of soil conditions for crop growth. By monitoring
pH levels, farmers can determine if the soil is too acidic or too alkaline and take appropriate action, such as adding lime or sulphur to adjust the pH level.
In addition, pH sensor plays a vital role in the early detection of pests and diseases, as they can detect changes in soil pH levels that may indicate the presence of harmful elements.