00507    a2200157   4500020001500000082001600015100002700031245008000058260008400138300001500222650001800237650001900255700002700274700002400301700002400325  a0949511900  a631.41bMET  aPeoples, M. B.  eed.   aMethods for evaluating nitrogen fixation by nodulated legumes in the field   aCanberrabAustralian Centre for International Agricultural Researchc1989g1989  a76p.c24cm  aSoil sciences  aSoil chemistry  aHerridge, D. F. eed.   aFaizah, A. W. eed.  aRerkasem, B. eed.