... as NPK ) , and in microelements, such as Ca, Mg, Fe, Zn, and Mn. It has comprehensive and balanced nutrition. c ... absorptivity, so as to improve the use efficiency of the fertilizer, not tending to cause seedling burnt. d. The ... , corn and other field crops, and used as base fertilizer for the vegetables; it is especially suitable for cotton, ... of our company. organic&inorganic seaweed NPK-25 fertilizer