Soil pH Buffer – Humic Acid

In recent years, excessive use of chemical fertilizers in farmland has caused soil acidification or salinization, which has a negative impact on crop growth. To solve this problem, it is important to neutralize the acidity with alkaline substances and adjust the alkalinity with acidic substances.
In scientific experiments, pH buffers are used to regulate and maintain pH levels. These buffers can act as either acidic or alkaline substances. When acid is added, the buffer becomes alkaline and effectively slows down the acidification process.
Humic acid is an example of a buffer with these properties. Humic acid is particularly beneficial in acidic soils because of its ability to chelate toxic aluminum ions.
Research results show that acidic soil often contains excess aluminum ions, which is harmful to plants. Humic acid covers these aluminum ions, preventing them from coming into direct contact with the plant. This unique property also applies to other heavy metals such as lead and cadmium. As a result, humic acid is widely recognized as a soil detoxifier that promotes healthier, more productive soil conditions.
Related Material:

Post time: Nov-20-2023