Search Results       Your search for [subject]Heterotrophic nitrogen fixation -- Rice soils0 returned 1 record.           Nitrogen and rice. Los Baños, Laguna, Philippines/ P.O.Box 933, Manila 1099, Philippines: International Rice Research Institute, 1979. Subject: Nitrogen -- Rice production0; Nitrogen transformation -- Rice soils0; Heterotrophic nitrogen fixation -- Rice soils0; Nitrogen fixation -- Algae0; Azolla utilization -- Rice production0; Agronomic practices0; Increasing nitrogen -- Rice soils0; Agriculture.          Add to Book Cart Relevance: 48.02%