1. Legume and mineral N effects on crop yields in several crop sequences in the upper Mississippi valley;Baidock;Agronomy Journal,1981
2. Quantitative comparison of the laboratory and field competitiveness of Rhizobium leguminosarum biovar phaseoli;Beattie;Applied and Environmental Microbiology,1989
3. Plant-infection counts of rhizobia in soils;Brockwell,1982
4. Stability of Bradyrhizobium japonicum inoculants introduced into soil;Brunei,1988
5. Effect of tillage practices on microbial biomass dynamics;Follett;Soil Science Society of America Journal,1989