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Researcher · Alliance Bioversity International - CIAT · Italy

O. Spellman

O. Spellman publishes mostly in Plant Science, Agronomy and Crop Science and Sociology and Political Science, on topics such as Crop Yield and Soil Fertility, Agriculture, Plant Science, Crop Management and Plant Disease Resistance and Genetics.

OpenAlex
World rank
#5,170,825
of 7,710,434 ranked researchers
Rank in Italy
#173,690
of 242,206
Works
21
Citations
68
Citations per work
3.2
h-index
3
i10-index 1Top 95% in Plant Science
O. Spellman

What does O. Spellman research?

O. Spellman's work is mostly in Agricultural and Biological Sciences (43%), Social Sciences (9%), Biochemistry, Genetics and Molecular Biology (4%).

Life Sciences: 10 works · 46.8% of their workAgricultural and Biological Sciences: 9 works · 42.5% of their workPlant Science: 5 works · 25.5% of their workAgronomy and Crop Science: 4 works · 17.0% of their workBiochemistry, Genetics and Molecular Biology: 1 works · 4.3% of their workMolecular Biology: 1 works · 4.3% of their workEverything else: 8 works · 40.3% of their workSocial Sciences: 2 works · 8.6% of their workSocial Sciences: 2 works · 8.6% of their workSafety Research: 1 works · 4.3% of their workSociology and Political Science: 1 works · 4.3% of their workHealth Sciences: 1 works · 4.3% of their workNursing: 1 works · 4.3% of their workNutrition and Dietetics: 1 works · 4.3% of their workTHEIR WORKO. Spellman21works
Life Sciences47%Health Sciences4%Social Sciences9%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Agricultural and Biological Sciences942.5%
    2. Biochemistry, Genetics and Molecular Biology14.3%
  2. Everything else840.3%
    1. Social Sciences28.6%
    1. Nursing14.3%
  1. 1Plant Science26% of their works
  2. 2Agronomy and Crop Science17% of their works
  3. 3Sociology and Political Science4% of their works
  4. 4Nutrition and Dietetics4% of their works
  5. 5Safety Research4% of their works
  6. 6Molecular Biology4% of their works

Research topics

Which keywords describe O. Spellman's research?

The keywords of their largest research topics: Genetic Improvement, Sustainable Agriculture, Maize Yield, Nitrogen Uptake, Nutrient Sources, Organic Fertilizers, Agricultural Economics and Dietary Fiber.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 18 words, with their numbers
  1. Genetic Improvement72 topics
  2. Sustainable Agriculture74 topics
  3. Maize Yield61 topic
  4. Nitrogen Uptake61 topic
  5. Nutrient Sources31 topic
  6. Organic Fertilizers31 topic
  7. Agricultural Economics21 topic
  8. Dietary Fiber21 topic
  9. Glycemic Index21 topic
  10. Plasmodiophora brassicae21 topic
  11. Rhizoctonia solani21 topic
  12. Rural Development21 topic
  13. Acrylamide11 topic
  14. Agricultural Productivity11 topic
  15. Bioenergy Crops11 topic
  16. Intercropping11 topic
  17. Maillard Reaction11 topic
  18. Switchgrass11 topic

Where does O. Spellman work?

O. Spellman's main affiliation in the publication record is Alliance Bioversity International - CIAT, Italy.

How many publications and citations does O. Spellman have?

OpenAlex counts 21 works and 68 citations for O. Spellman, an h-index of 3, ranking #5,170,825 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

Discussion

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