Suståne Hi-N WDF is a high-analysis, water dispersible, nitrogen fertilizer specially formulated to promote rapid and durable greening and plant growth. Suståne Hi-N WDF efficiently delivers a unique blend of soluble organic nitrogen sources to support plant growth. It can be used on diverse plants produced in a wide variety of growing systems. • Suståne Hi-N WDF is designed for use in hydroponics and greenhouse fertigation programs • Useful as a starter fertilizer and for foliar feeding • A key component of any fertigation program • Use in conjunction with Suståne Compost Tea to supercharge soil microbiology