Point of deliquescence 150 150 areinheimer

Point of deliquescence

In foliar feeding it is important that the spray droplets remain liquid on the leaf as long as possible so that the plant may take them up.  The relative humidity below which a foliar will dry on the leaf and above which it will remain dissolved in water is called the point of deliquescence.

It has been found that the addition of humic acids to the spray will tend to lower the point of deliquescence, and allow the droplets to remain liquid longer.