Studies on responses of potted alfalfa to trace element fertilizers application

Pot experiment was conducted to study the effect of Mo、Co element fertilizers application on alfalfa growth, quality and trace element content. The results showed that combined application of Mo、Co fertilizers could increase Alfalfa height, forage yield and contents of crude protein, crude fat, phosphor, calcium, and contents of Cu, Mo, B, Zn, Co, reduce the contents of crude fiber, crude ash, nitrogenfree extract; The appropriate combination of Mo、Co fertilizers could enhance the contents of Mn and significantly increase alfalfa height, fresh forage yield and the contents of crude protein, phosphor, calcium, Fe, Cu, Mo, Zn, Co, and significantly reduce the contents of crude fiber, crude ash, nitrogenfree extract.