100% Organic Humic Acid Powder Reduces Soil Acidification for Rice Paddy Farming

Huayuan natural humic acid powder is derived from high-grade weathered coal through a purely physical process of crushing, milling and sieving, with no chemical activation or synthetic additives. The resulting 100% organic powder preserves the full spectrum of native active groups, making it a dependable tool for reversing soil acidification in intensively cropped rice paddies across the Philippines and other Southeast Asian markets where continuous NPK application has steadily lowered soil pH.

Broadcast 300-600 kg per hectare before land preparation and incorporate into the puddled layer. For vegetable rotations after rice, apply 450-900 kg per hectare in furrows or bands. Combine with microbial inoculants to speed up residue decomposition and improve fertiliser efficiency.

Supplied in 25 kg laminated kraft bags with inner PE liner, 1 ton jumbo bags, or customer-designated packaging. Every production batch is ISO 9001 certified and shipped with a certificate of analysis. We maintain a supply capacity of 50 tons per day and accept flexible L/C or T/T payment terms for B2B importers, distributors and plantation buyers across Southeast Asia and the Middle East.