na INLIS000000000000082 Ind 0010-1118000082 Measuring plant-associated nitrogen fixation in agricultutal systems AUSTRALIAN CENTRE FOR INTERNATIONAL AGRICULTURAL RESEARCH Murray Unkovich...[et al.] Canberra ACIAR 2008 258 p.: ill.; 25 cm.-- 258 p.: ill.; 25 cm.-- ISBN978-1-921531-26-2 Sr.631.461.5 Bibl.: p. 224-240 631.461.5 FARMING SYSTEMS NITROGEN FIXATION 150/MS/2009-mfn141 150/MS/2009-mfn47389