The granular and flake forms of humic acid are mainly due to different processing and preparation methods. The specific reasons include:
Production process: Granular humic acid is usually made by pressing or granulation, while flake humic acid may be formed by drying, cutting and other processes.
Application requirements: Granular humic acid is easier to disperse and apply evenly when applied, suitable for large-scale agricultural applications; flake humic acid may be easier to store and transport.
Solubility and release characteristics: Granular humic acid may dissolve slowly in water and is suitable for long-term release; while flake humic acid may release nutrients faster and is suitable for rapid replenishment of soil nutrients.
Ease of use: Granular products are usually easier to apply mechanically, while flake products may be more convenient when applied manually.
Different forms are suitable for different agricultural practices. Choosing the right form according to specific needs can better exert the effect of humic acid.