The deterioration of the natural balance and the increase of environmental problems is an issue that the world is following with difficulty. These problems create hazards that threaten the health of humans and animals. The accumulation of heavy metals in the soil in very high amounts deteriorates the ecological balance and causes various health problems in humans, animals and plants.

Especially in agricultural production activities, the soil should not be polluted and inefficient and the availability of the plant should be done correctly, in accordance with the method of activities such as plant selection, cultivation, irrigation and fertilization.

Soil should contain sufficient nutrients and the chemical properties of the soil should be suitable for the plant. In order to determine that the soil is suitable and productive, the properties of the soil such as salinity, lime and organic matter content, as well as the pH value are examined. If one or more of these features are not suitable, the soil is not fertile and the growth of plants is limited.

The pH of the soil is a value that indicates the alkalinity, acidity or neutrality of the soil. This value is expressed as pH, ie potential hydrogen. Soils are acidic if the hydrogen ion concentration is high in the soil solution and alkaline (basic) if the hydroxyl ion concentration is high. If the hydrogen and hydroxyl ion concentrations are equal, the soil is neutral.

Soils are mostly acidic in temperate regions with abundant rainfall. In arid and semi-arid regions, there are mostly alkaline soils. In ideal agricultural soils, the pH limit should be between 6,5 and 6,8. This value is generally between 7,2 and 8,5 in the soils in our country.

PH measurement in soils is made with pH meters used for this process. The devices produced for this work are stabbed into the soil and measurements are made.

In accredited laboratories, pH measurements are made within the framework of soil measurements.