Potassium fulvic acid is a green and efficient potassium fertilizer that not only acts on the crops themselves, but also has obvious effects such as improving soil and repairing soil. So what is the principle behind these effects? This article will explain the working principle of potassium fulvic acid in detail, focusing on improving soil structure and improving saline-alkali soil, giving you a deeper understanding of potassium fulvic acid.
How potassium fulvicate works: improves soil structure
Potassium fulvic acid has colloidal properties. Through flocculation, it can form aggregates with aggregates and micro-aggregates in the soil, reducing the bulk density of the soil, increasing porosity, making the soil better permeable, and conducive to water, fertilizer, and water in the soil. The regulation of air and heat conditions creates a high-quality soil environment suitable for the growth and development of plant roots and increases crop yields.
The working principle of potassium fulvic acid: improvement of saline-alkali land
The humic acid contained in potassium fulvic acid is a negatively charged colloid. After combining with the soil, it can increase the adsorption capacity of cations, play the role of salt isolation and salt absorption, inhibit the rise of salt, and reduce the salt content of the surface soil.
Humic acid is also a weak acid that can combine with various cations in the soil to generate humate, forming a buffer system for humic acid-humate mutual conversion, which plays a good role in regulating the pH of the soil.
Potassium fulvic phytate can also neutralize alkaline substances in the soil and reduce the alkalinity of the soil. The base exchange capacity of humic acid is 200-300cmol/kg, which is 10-20 times that of clay minerals in the soil, allowing harmful ions in the soil solution to exchange reactions with humic acid and reducing the base content of the soil. Therefore, potassium fulvic acid has a good effect on improving saline-alkali soil.