Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleBiological nitrogen fixation: investments, expectations and actual contributions to agricultureAuthorsCraswell, E. T.; Peoples, M. B.SubjectsAGRICULTURE; LEGUMES; NITROGEN; RESEARCHPublicationPlant & Soil, 1992, Vol 141, Issue 1/2, p13ISSN0032-079XPublication typeArticle