Manganese sulfate, as a trace element fertilizer, can be used as a base fertilizer, seed soaking, seed mixing, topdressing, and foliar spraying. It can also be used as a feed additive and as a raw material for processing paint and ink desiccant manganese naphthalate solution. Used as a catalyst in fatty acid synthesis. It can be used as a raw material for papermaking, ceramics, printing and dyeing, ore flotation, electrolytic manganese production, and other manganese salt manufacturing.