P.C. Smithson

738 total citations
15 papers, 539 citations indexed

About

P.C. Smithson is a scholar working on Soil Science, Agronomy and Crop Science and Plant Science. According to data from OpenAlex, P.C. Smithson has authored 15 papers receiving a total of 539 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Soil Science, 5 papers in Agronomy and Crop Science and 5 papers in Plant Science. Recurrent topics in P.C. Smithson's work include Soil Carbon and Nitrogen Dynamics (9 papers), Agronomic Practices and Intercropping Systems (4 papers) and Crop Yield and Soil Fertility (2 papers). P.C. Smithson is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (9 papers), Agronomic Practices and Intercropping Systems (4 papers) and Crop Yield and Soil Fertility (2 papers). P.C. Smithson collaborates with scholars based in Kenya, United States and Uganda. P.C. Smithson's co-authors include Else K. Bünemann, Emmanuel Frossard, Astrid Oberson, Déborah Bossio, Fabrizio Steinebrunner, R. J. Buresh, Bashir Jama, H. Ssali, Clifford S. Gold and Beverly Mcintyre and has published in prestigious journals such as Soil Biology and Biochemistry, Soil Science Society of America Journal and Plant and Soil.

In The Last Decade

P.C. Smithson

15 papers receiving 490 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P.C. Smithson Kenya	11	341	244	160	107	74	15	539
V. Beri India	10	423 1.2×	264 1.1×	72 0.5×	121 1.1×	33 0.4×	22	613
I. Haque Kenya	14	429 1.3×	333 1.4×	109 0.7×	224 2.1×	64 0.9×	57	757
Steven E. Peters United States	6	481 1.4×	282 1.2×	186 1.2×	201 1.9×	22 0.3×	6	725
Laércio Ricardo Sartor Brazil	13	347 1.0×	263 1.1×	119 0.7×	203 1.9×	94 1.3×	42	619
Danilo Moreta Colombia	9	302 0.9×	391 1.6×	88 0.6×	110 1.0×	26 0.4×	13	642
J. K. Ndufa Kenya	10	282 0.8×	125 0.5×	85 0.5×	131 1.2×	18 0.2×	17	482
Sérgio Ely Valadão Gigante de Andrade Costa Brazil	15	487 1.4×	228 0.9×	69 0.4×	145 1.4×	26 0.4×	21	581
N. Raistrick United Kingdom	13	221 0.6×	163 0.7×	208 1.3×	129 1.2×	57 0.8×	17	506
M.C. Mundra India	6	388 1.1×	229 0.9×	66 0.4×	141 1.3×	28 0.4×	10	518
Sara Elfstrand Sweden	6	303 0.9×	251 1.0×	66 0.4×	148 1.4×	34 0.5×	8	493

Countries citing papers authored by P.C. Smithson

Since Specialization

Citations

This map shows the geographic impact of P.C. Smithson'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 P.C. Smithson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P.C. Smithson more than expected).

Fields of papers citing papers by P.C. Smithson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P.C. Smithson. 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 P.C. Smithson. The network helps show where P.C. Smithson may publish in the future.

Co-authorship network of co-authors of P.C. Smithson

This figure shows the co-authorship network connecting the top 25 collaborators of P.C. Smithson. A scholar is included among the top collaborators of P.C. Smithson 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 P.C. Smithson. P.C. Smithson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

15 of 15 papers shown

Smithson, P.C., et al.. (2006). Effects of added biomass, soil pH and calcium on the solubility of Minjingu phosphate rock in a Kenyan Oxisol. Archives of Agronomy and Soil Science. 52(1). 19–36. 14 indexed citations

Sharrock, Robert, Fergus Sinclair, C. Gliddon, et al.. (2004). A global assessment using PCR techniques of mycorrhizal fungal populations colonising Tithonia diversifolia. Mycorrhiza. 14(2). 103–109. 22 indexed citations

Bünemann, Else K., P.C. Smithson, Bashir Jama, Emmanuel Frossard, & Astrid Oberson. (2004). Maize productivity and nutrient dynamics in maize-fallow rotations in western Kenya. Plant and Soil. 264(1-2). 195–208. 49 indexed citations

Bünemann, Else K., Déborah Bossio, P.C. Smithson, Emmanuel Frossard, & Astrid Oberson. (2004). Microbial community composition and substrate use in a highly weathered soil as affected by crop rotation and P fertilization. Soil Biology and Biochemistry. 36(6). 889–901. 159 indexed citations

Smithson, P.C., et al.. (2004). Potassium and magnesium fertilizers on banana in Uganda: yields, weevil damage, foliar nutrient status and DRIS analysis. Nutrient Cycling in Agroecosystems. 69(1). 43–49. 26 indexed citations

Bünemann, Else K., Fabrizio Steinebrunner, P.C. Smithson, Emmanuel Frossard, & Astrid Oberson. (2004). Phosphorus Dynamics in a Highly Weathered Soil as Revealed by Isotopic Labeling Techniques. Soil Science Society of America Journal. 68(5). 1645–1655. 92 indexed citations

Smithson, P.C., Bashir Jama, Robert J. Delve, et al.. (2003). East African phosphate resources and their agronomic performance.. 123–133. 2 indexed citations

Rao, M. R., et al.. (2002). DURATION OF SESBANIA FALLOW EFFECT FOR NITROGEN REQUIREMENT OF MAIZE IN PLANTED FALLOW–MAIZE ROTATION IN WESTERN KENYA. Experimental Agriculture. 38(2). 223–236. 9 indexed citations

Maghembe, J. A., et al.. (2001). Dry-season sesbania fallows and their influence on nitrogen availability and maize yields in Malawi. Agroforestry Systems. 52(1). 13–21. 20 indexed citations

10.

Smithson, P.C., Beverly Mcintyre, Clifford S. Gold, H. Ssali, & I. Kashaija. (2001). Nitrogen and potassium fertilizer vs. nematode and weevil effects on yield and foliar nutrient status of banana in Uganda. Nutrient Cycling in Agroecosystems. 59(3). 239–250. 35 indexed citations

11.

Smithson, P.C.. (2000). Nutrient Disequilibria in Agroecosystems: Concepts and Case Studies. Agricultural Systems. 64(2). 131–133. 9 indexed citations

12.

Khan, A. A. H., et al.. (1999). Effects of Phosphorus Recapitalisation and Agroforestry on Soil, Water and Nutrient Conservation in Phosphorus-Deficient Soils of Western Kenya. East African Agricultural and Forestry Journal. 65(1-2). 37–50. 6 indexed citations

13.

Buresh, R. J., et al.. (1998). Soil nitrogen availability as affected by fallow-maize systems on two soils in Kenya. Biology and Fertility of Soils. 26(3). 229–234. 33 indexed citations

14.

Mathuva, David, M. R. Rao, P.C. Smithson, & Richard Coe. (1998). Improving maize (Zea mays) yields in semiarid highlands of Kenya: agroforestry or inorganic fertilizers?. Field Crops Research. 55(1-2). 57–72. 28 indexed citations

15.

Motavalli, Peter P., C. A. Palm, Edward T. Elliott, Serita D. Frey, & P.C. Smithson. (1995). Nitrogen Mineralization in Humid Tropical Forest Soils: Mineralogy, Texture, and Measured Nitrogen Fractions. Soil Science Society of America Journal. 59(4). 1168–1175. 35 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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