Function and efficacy
1. Improve soil structure, especially the soil compaction caused by long-term single use of chemical fertilizers.
Humic acid granules For relatively poor and sandy soils, humic acid can increase the cation exchange capacity of the soil and convert the fixed metal cations like K+ and Mg+ that are beneficial to plants in the soil into a form that can be absorbed, thereby promoting plant response to Absorption of nutrients.
In compacted soil, humic acid can interact with beneficial bacteria in the soil to turn the soil into a soft structure, promoting the absorption of water, nutrients and oxygen by plants.
2. Neutralize the acidity and alkalinity of the soil and adjust the pH of the soil.
In an alkaline soil environment, many basic nutrients and trace elements exist in forms that cannot be absorbed by plants. Humic acid can buffer the pH and convert these basic nutrients and trace elements into forms that can be absorbed by plants. form.
In an acidic soil environment, humic acid particles can react with heavy metals to reduce heavy metal pollution. At the same time, the phosphorus fixed by Ca3+Fe3+Al3+ in the soil can also be released and absorbed by plants.
3. Humic acid interacts with harmful nitrates in the soil to prevent them from entering underground drinking water and protect water resources.
4. It can increase the persistence of pesticides and herbicides while reducing pesticide residues.