KEEN LIQUID HUMIC ACID ORGANIC SOIL CONDITIONER KEEN promotes the growth of beneficial microorganisms in the soil and increases their activities. KEEN helps keep the soil pH values in the proper range. KEEN help the formation of a healthy root system by speeding up the root formation. KEEN can be applied any time during the vegetation periods of the plants. KEEN prevents also the falling out of the blossoms and the fruits. Under normal conditions KEEN conserves its beneficial physical, chemical & biological properties at least for 3 years.