DNF BLACK is designed to enhance the flavour and colour of fruits and vegetables. Used weekly, it increases the permeate ability of important micro and macro nutrients and encourages beneficial bacteria and fungi reproduction to biologically stimulate plant growth. DNF Black organically reduces stress throughout the growth cycle; nutrients will be more effective and plant growth pronounced. DNF Black rejuvenates soil less media throughout the growth cycle. Compaitble with all rooting hormones and hydroponic nutririents.