P. H. Graham

Nitrogen fixation in perspective: an overview of research and extension needs

P. H. Graham, Carroll P. Vance · Field Crops Research · 2000 · 425 citations

Biogeochemistry, Extension Needs, Engineering +7

Common bean (Phaseolus vulgaris L.)

P. H. Graham, P. Ranalli · Field Crops Research · 1997 · 367 citations

Biology, Botany, Natural Sciences +4

Biological nitrogen fixation technology for tropical agriculture.

P. H. Graham, Stuart Harris · 1981 · 224 citations

Engineering, Sustainable Agriculture, Agricultural Economics +5

Variation in acid soil tolerance among strains of Rhizobium phaseoli

P. H. Graham, Silvio E. Viteri, F. P. Mackie et al. · Field Crops Research · 1982 · 155 citations

Engineering, Environmental Engineering, Plant-rhizobia Interaction +8

Growth And Development Of Indeterminate Bush And Climbing Cultivars of <i>Phaseolus vulgaris</i> L. Inoculated with Rhizobium

P. H. Graham, Juan Carlos Rosas · The Journal of Agricultural Science · 1977 · 91 citations

Growth Habit, Engineering, Botany +19