G. E. Ham

1.2k total citations
29 papers, 864 citations indexed

About

G. E. Ham is a scholar working on Plant Science, Agronomy and Crop Science and Pollution. According to data from OpenAlex, G. E. Ham has authored 29 papers receiving a total of 864 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Plant Science, 12 papers in Agronomy and Crop Science and 2 papers in Pollution. Recurrent topics in G. E. Ham's work include Legume Nitrogen Fixing Symbiosis (23 papers), Soybean genetics and cultivation (13 papers) and Agronomic Practices and Intercropping Systems (12 papers). G. E. Ham is often cited by papers focused on Legume Nitrogen Fixing Symbiosis (23 papers), Soybean genetics and cultivation (13 papers) and Agronomic Practices and Intercropping Systems (12 papers). G. E. Ham collaborates with scholars based in United States and China. G. E. Ham's co-authors include William C. Lindemann, E. L. Schmidt, B. L. Vasilas, Vernon B. Cardwell, H. W. Johnson, L. R. Frederick, I. C. Anderson, S. Sparrow, G. W. Randall and Jean‐Luc Lambert and has published in prestigious journals such as Soil Biology and Biochemistry, Soil Science Society of America Journal and Journal of Environmental Quality.

In The Last Decade

G. E. Ham

29 papers receiving 747 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
G. E. Ham United States 18 781 345 98 83 35 29 864
M. C. P. Neves Brazil 17 855 1.1× 319 0.9× 175 1.8× 89 1.1× 30 0.9× 54 966
D. F. Weber United States 13 699 0.9× 237 0.7× 82 0.8× 166 2.0× 45 1.3× 18 796
P. L. Minotti United States 13 595 0.8× 157 0.5× 183 1.9× 22 0.3× 26 0.7× 30 710
S. Dubetz Canada 16 470 0.6× 285 0.8× 153 1.6× 22 0.3× 7 0.2× 49 593
Petter Oscarson Sweden 14 408 0.5× 180 0.5× 85 0.9× 17 0.2× 17 0.5× 20 465
David A. Wall Canada 14 503 0.6× 239 0.7× 84 0.9× 17 0.2× 97 2.8× 55 609
PR Dann Australia 8 184 0.2× 173 0.5× 109 1.1× 33 0.4× 14 0.4× 16 348
Jeffrey C. Stark United States 10 513 0.7× 229 0.7× 99 1.0× 18 0.2× 18 0.5× 24 579
Lingling Yu China 11 370 0.5× 235 0.7× 196 2.0× 73 0.9× 56 1.6× 15 547
Hamdollah Eskandari Iran 14 358 0.5× 305 0.9× 105 1.1× 48 0.6× 17 0.5× 34 556

Countries citing papers authored by G. E. Ham

Since Specialization
Citations

This map shows the geographic impact of G. E. Ham's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by G. E. Ham with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G. E. Ham more than expected).

Fields of papers citing papers by G. E. Ham

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G. E. Ham. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by G. E. Ham. The network helps show where G. E. Ham may publish in the future.

Co-authorship network of co-authors of G. E. Ham

This figure shows the co-authorship network connecting the top 25 collaborators of G. E. Ham. A scholar is included among the top collaborators of G. E. Ham based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with G. E. Ham. G. E. Ham is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Boland, Michael A., et al.. (1999). Hard White Wheat Variety Release: A Decision Case. Journal of natural resources and life sciences education. 28(1). 63–71. 3 indexed citations
2.
Ham, G. E., et al.. (1985). Effect of Soil Temperature and Inoculum Rate on the Recovery of Three Introduced Strains of Rhizobium japonicum1. Agronomy Journal. 77(3). 484–489. 8 indexed citations
3.
Vasilas, B. L. & G. E. Ham. (1985). Intercropping nodulating and non-nodulating soybeans: Effects on seed characteristics and dinitrogen fixation estimates. Soil Biology and Biochemistry. 17(4). 581–582. 20 indexed citations
4.
Ellis, W.R., G. E. Ham, & E. L. Schmidt. (1984). Persistence and Recovery of Rhizobium japonicum Inoculum in a Field Soil1. Agronomy Journal. 76(4). 573–576. 55 indexed citations
5.
Randall, G. W., et al.. (1983). Foliar Fertilization of Soybeans. I. Effect of Fertilizer Sources, Rates, and Frequency of Application1. Agronomy Journal. 75(2). 195–200. 39 indexed citations
6.
Sparrow, S. & G. E. Ham. (1983). Nodulation, N2 Fixation, and Seed Yield of Navy Beans as Influenced by Inoculant Rate and Inoculant Carrier1. Agronomy Journal. 75(1). 20–24. 17 indexed citations
7.
Lindemann, William C., G. W. Randall, & G. E. Ham. (1982). Tillage Effects on Soybean Nodulation, N2(C2H4) Fixation, and Seed Yield1. Agronomy Journal. 74(6). 1067–1070. 6 indexed citations
8.
Ham, G. E.. (1980). Interactions of Glycine max and Rhizobium japonicum.. 289–296. 13 indexed citations
9.
Ham, G. E., William E. Newton, & William H. Orme‐Johnson. (1980). Inoculation of legumes with Rhizobium in competition with naturalized strains.. 131–138. 26 indexed citations
10.
Lindemann, William C. & G. E. Ham. (1979). Soybean Plant Growth, Nodulation, and Nitrogen Fixation as Affected by Root Temperature. Soil Science Society of America Journal. 43(6). 1134–1137. 59 indexed citations
11.
Ham, G. E. & R. H. Dowdy. (1978). Soybean Growth and Composition as Influenced by Soil Amendments of Sewage Sludge and Heavy Metals: Field Studies1. Agronomy Journal. 70(2). 326–330. 22 indexed citations
12.
Ham, G. E.. (1977). A Treatise on Dinitrogen Fixation, Section IV. Journal of Environmental Quality. 6(4). 475–475. 7 indexed citations
13.
Dowdy, R. H. & G. E. Ham. (1977). Soybean Growth and Elemental Content as Influenced by Soil Amendments of Sewage Sludge and Heavy Metals: Seedling Studies1. Agronomy Journal. 69(2). 300–303. 19 indexed citations
14.
15.
Ham, G. E., et al.. (1975). Yield and Composition of Soybean Seed as Affected by N and S Fertilization1. Agronomy Journal. 67(3). 293–297. 60 indexed citations
16.
Ham, G. E., et al.. (1974). RELATIONSHIP BETWEEN STRAINS OF RHIZOBIUM JAPONICUM AND THEIR BACTERIOPHAGES FROM SOIL AND NODULES OF FIELD-GROWN SOYBEANS. Soil Science. 118(3). 221–228. 43 indexed citations
17.
Lindemann, William C., E. L. Schmidt, & G. E. Ham. (1974). EVIDENCE FOR DOUBLE INFECTION WITHIN SOYBEAN NODULES. Soil Science. 118(4). 274–279. 44 indexed citations
18.
Ham, G. E., Vernon B. Cardwell, & H. W. Johnson. (1971). Evaluation of Rhizobium japonicum Inoculants in Soils Containing Naturalized Populations of Rhizobia1. Agronomy Journal. 63(2). 301–303. 93 indexed citations
19.
Ham, G. E., L. R. Frederick, & I. C. Anderson. (1971). Serogroups of Rhizobium japonicum in Soybean Nodules Sampled in Iowa1. Agronomy Journal. 63(1). 69–72. 59 indexed citations
20.
Ham, G. E. & L. R. Frederick. (1966). Evaluation of Methods for Estimating Numbers of Rhizobia on Alfalfa Seed1. Agronomy Journal. 58(6). 592–595. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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