Runge-Metzger A.Closing the cycle:obstacles to efficient P management for improved global food security[M]//H Tiessen phosphorus in the Global Enviroment:Transfers,Cycles and management.New York:Wiley,1995:27-42.
Link W C,Dixkens M,Schwall M A E.Genetic diversity in European and Mediterranean faba bean germplasm revealed by RAPD makers[J].Theor Appl Genet,1995(90):27-32.
[10]
Gourley J P,Allan D L,Russelle M P.Plant nutrient efficiency:A comprison of definitions and suggested improvement[J].Plant and Soil,1994,158:29-37.