The Micro-Base component of our multi-part nutrient formula is the foundation of our complete and versatile professional line of liquid fertilizer. It provides all the essential micro nutrients necessary for accelerated plant growth. It is designed to combine with many of our other nutrient components, most specifically Grow #1 and #2 and Bloom #3. Using various combinations of these constituents allows custom formulating of nearly any nutrient balance desired. The Micro-Base contains magnesium, sulfur, iron, zinc, copper, manganese, boron and molybdenum as well as nitrogen, phosphorus and potassium, making it a well rounded nutrient on its own. Contains chelated micro nutrients to prevent unwanted element bonding and improve availability for plant root assimilation. The Micro-Base is a necessary part of any feeding program.