Huayuan water-retention humic acid granules are a cost-effective soil conditioner for coffee and rice farming in Vietnam and neighbouring Southeast Asian markets. The high-carbon structure of humic acid acts like a sponge in the soil, holding water and dissolved nutrients where plant roots can reach them. This is especially valuable in the sandy and well-drained upland soils where Robusta coffee is widely grown across the Central Highlands.

• Superior Water Retention: Humic acid dramatically increases the soil's water-holding capacity, reducing irrigation frequency and protecting crops during dry spells.
• Fertiliser Efficiency Booster: The granules chelate nitrogen, phosphorus and potassium, preventing them from being locked into the soil and raising the utilisation rate of applied fertiliser.
• Coffee Farming Optimised: Suitable for both newly planted coffee seedlings and mature trees, promoting deeper root systems and more uniform cherry development.
• CEC Enhancement: Raised cation exchange capacity holds calcium, magnesium and potassium in the root zone, improving both soil fertility and coffee bean quality.
• Low-Dust Granular Form: Uniform 2-4 mm granules flow easily through spreaders and are safe and clean to handle in the field.

Apply 300-600 kg per hectare as a base dressing for coffee, mixing into the soil around the drip line of each tree. For rice, broadcast before final puddling. Top-dress 75-150 kg per hectare during the flowering or fruit-setting stage together with high-potassium compound fertiliser for best results.

Supplied in 25 kg woven polypropylene bags, 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 to support B2B importers, distributors and plantation buyers across Southeast Asia and the Middle East.