Water Soluble Humic Acid Powder 70% Leonardite Extract Drip Grade for Fertigation Systems

This drip grade powder is produced from weathered lignite (leonardite) mined in the Ningxia reserve, then extracted with potassium hydroxide, filtered and spray dried. The result is a powder that dissolves almost completely in cold water, with insoluble matter held under one percent so that drip tapes, micro sprinklers and venturi injectors stay clean through the whole season. Buyers in Vietnam, Thailand and Indonesia normally run it through the same fertigation tank as their