%0 Journal Article %T Contribution of Nitrogen Fixation to Sugar Cane: Nitrogen‐15 and Nitrogen‐Balance Estimates %A Urquiaga, Segundo %A Cruz, Kátia H.S. %A Boddey, Robert M. %J Soil Science Society of America Journal %V 56 %N 1 %P 105-114 %@ 0361-5995 %D 1992-01-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve