For root crops developed by carefully protected multi-function tuber control agent, adopt international advanced cryogenic vacuum extraction process, containing plants need to grow and phosphorus, potassium and zinc, iron, boron, manganese, molybdenum, etc. All kinds of trace elements of soil scarce. Enhance photosynthesis, enhance photosynthesis, to effectively regulate crops. Enhance the capacity of crop disease resistance frozen, drought waterlogging, promote the growth of root), and the control plants crazy long, reduce invalid nutrition consumption, increase crop fitness enzyme synthesis, increase the content of trace elements, crisp, prolong storage preservation