... . this product is both rich in microelements (such as NPK ) , and in microelements, such as Ca, Mg, Fe, Zn, and Mn. It ... advanced mineral-algae chelation technology provides with minerals with good absorptivity, so as to improve the use efficiency of the fertilizer, not ... applied to cotton, corn and other field crops, and used as base fertilizer for the vegetables; it is especially suitable for ...