... acids as well as more than ten kinds of trace elements like zinc, copper, manganese, iron and boron ... no toxicity and pollution.Amino acids ≥28%, chelated trace elements (Fe+Cu+Mn+Zn+B+Mg) ≥10 ... %This product is all chelated organic trace elements, the absorptivity of which is 2~4 ... times higher than the inorganic trace elements. II. Functional Characteristics1. Promote the growth of ...