Nancy Karanja

1.7k total citations
45 papers, 1.2k citations indexed

About

Nancy Karanja is a scholar working on Agronomy and Crop Science, Plant Science and Food Science. According to data from OpenAlex, Nancy Karanja has authored 45 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Agronomy and Crop Science, 17 papers in Plant Science and 8 papers in Food Science. Recurrent topics in Nancy Karanja's work include Agronomic Practices and Intercropping Systems (17 papers), Legume Nitrogen Fixing Symbiosis (7 papers) and Potato Plant Research (5 papers). Nancy Karanja is often cited by papers focused on Agronomic Practices and Intercropping Systems (17 papers), Legume Nitrogen Fixing Symbiosis (7 papers) and Potato Plant Research (5 papers). Nancy Karanja collaborates with scholars based in Kenya, Germany and Sweden. Nancy Karanja's co-authors include Charles K. K. Gachene, Elmar Schulte‐Geldermann, Harun I. Gitari, Shadrack O. Nyawade, Monica Parker, Solomon Kamau, Mary Njenga, Kalpana Sharma, Gordon Prain and Julius Juma Okello and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Cleaner Production and Scientific Reports.

In The Last Decade

Nancy Karanja

43 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Nancy Karanja Kenya 22 532 448 277 168 140 45 1.2k
Rainer Schultze‐Kraft Germany 18 615 1.2× 375 0.8× 243 0.9× 80 0.5× 226 1.6× 91 1.5k
Nancy Karanja Kenya 21 689 1.3× 284 0.6× 610 2.2× 104 0.6× 68 0.5× 74 1.6k
Ramadjita Tabo Mali 19 549 1.0× 361 0.8× 426 1.5× 103 0.6× 168 1.2× 58 1.5k
Muhammad Ibrahim Pakistan 17 451 0.8× 290 0.6× 349 1.3× 93 0.6× 338 2.4× 99 1.2k
J. Wéry France 21 841 1.6× 361 0.8× 230 0.8× 74 0.4× 102 0.7× 32 1.6k
Koushik Brahmachari India 18 662 1.2× 322 0.7× 317 1.1× 48 0.3× 61 0.4× 72 1.2k
Charles K. K. Gachene Kenya 25 608 1.1× 641 1.4× 729 2.6× 166 1.0× 231 1.6× 101 1.7k
P. Parthasarathy Rao India 13 378 0.7× 268 0.6× 210 0.8× 102 0.6× 64 0.5× 38 1.2k
Thomas Hilger Germany 20 478 0.9× 156 0.3× 352 1.3× 46 0.3× 77 0.6× 63 1.1k
Janne Kaseva Finland 20 529 1.0× 247 0.6× 293 1.1× 49 0.3× 46 0.3× 85 1.4k

Countries citing papers authored by Nancy Karanja

Since Specialization
Citations

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

Fields of papers citing papers by Nancy Karanja

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nancy Karanja. 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 Nancy Karanja. The network helps show where Nancy Karanja may publish in the future.

Co-authorship network of co-authors of Nancy Karanja

This figure shows the co-authorship network connecting the top 25 collaborators of Nancy Karanja. A scholar is included among the top collaborators of Nancy Karanja 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 Nancy Karanja. Nancy Karanja 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.
Karanja, Nancy, et al.. (2023). Lupin and Lima Beans Diminish Potatoes’ N and P Uptake, Uptake Efficiency and Use Efficiency. Potato Research. 67(1). 37–53. 4 indexed citations
2.
Karanja, Nancy, et al.. (2021). Response of potato crop to selected nutrients in central and eastern highlands of Kenya. Cogent Food & Agriculture. 7(1). 30 indexed citations
3.
Nyawade, Shadrack O., Nancy Karanja, Charles K. K. Gachene, et al.. (2020). Optimizing soil nitrogen balance in a potato cropping system through legume intercropping. Nutrient Cycling in Agroecosystems. 117(1). 43–59. 47 indexed citations
4.
Gitari, Harun I., Shadrack O. Nyawade, Solomon Kamau, et al.. (2020). Revisiting intercropping indices with respect to potato-legume intercropping systems. Field Crops Research. 258. 107957–107957. 81 indexed citations
5.
Karanja, Nancy, et al.. (2020). Assessment of soil fertility and potato crop nutrient status in central and eastern highlands of Kenya. Scientific Reports. 10(1). 7779–7779. 48 indexed citations
6.
Gitari, Harun I., Charles K. K. Gachene, Nancy Karanja, et al.. (2019). Potato-legume intercropping on a sloping terrain and its effects on soil physico-chemical properties. Plant and Soil. 438(1-2). 447–460. 50 indexed citations
7.
Gitari, Harun I., Shadrack O. Nyawade, Solomon Kamau, et al.. (2019). Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops. Journal of Plant Nutrition. 43(6). 864–878. 25 indexed citations
8.
Gitari, Harun I., Nancy Karanja, Charles K. K. Gachene, et al.. (2018). Nitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems. Field Crops Research. 222. 78–84. 85 indexed citations
9.
Gitari, Harun I., Charles K. K. Gachene, Nancy Karanja, et al.. (2018). Optimizing yield and economic returns of rain-fed potato (Solanum tuberosum L.) through water conservation under potato-legume intercropping systems. Agricultural Water Management. 208. 59–66. 51 indexed citations
10.
Otoo, Miriam, et al.. (2018). Cooperative model for financially sustainable municipal solid waste composting (NAWACOM, Kenya) - Case Study. AgEcon Search (University of Minnesota, USA). 1 indexed citations
11.
Karanja, Nancy, et al.. (2018). Control of bacterial wilt (ralstoniasolanacearum) in potato (Solanum tuberosum) using rhizobacteria and arbuscular mycorrhiza fungi.. African Journal of Food Agriculture Nutrition and Development. 18(2). 13372–13388. 12 indexed citations
12.
Nyawade, Shadrack O., Nancy Karanja, Charles K. K. Gachene, Elmar Schulte-Geldermann, & Monica Parker. (2018). Effect of potato hilling on soil temperature, soil moisture distribution and sediment yield on a sloping terrain. Soil and Tillage Research. 184. 24–36. 23 indexed citations
13.
Reis, Stefan, Mateete Bekunda, Clare Howard, et al.. (2016). Synthesis and review: Tackling the nitrogen management challenge: from global to local scales. Environmental Research Letters. 11(12). 120205–120205. 61 indexed citations
14.
Njenga, Mary, Nancy Karanja, Miyuki Iiyama, et al.. (2013). Implications of Charcoal Briquette Produced by Local Communities on Livelihoods and Environment in Nairobi- Kenya. International Journal of Renewable Energy Development. 2(1). 19–29. 16 indexed citations
15.
Karuku, George N., Charles K. K. Gachene, Nancy Karanja, et al.. (2012). SOIL HYDRAULIC PROPERTIES OF A NITISOL IN KABETE, KENYA. Tropical and Subtropical Agroecosystems. 15(3). 17 indexed citations
16.
Verplancke, Hubert, Wim Cornelis, Nancy Karanja, Charles K. K. Gachene, & George N. Karuku. (2011). Use of CROPWAT model to predict water use in irrigated tomato production at Kabete, Kenya. East African Agricultural and Forestry Journal. 80(3). 175–183. 5 indexed citations
17.
Karanja, Nancy, et al.. (2010). ASSESSMENT OF ENVIRONMENTAL AND PUBLIC HEALTH HAZARDS IN WASTEWATER USED FOR URBAN AGRICULTURE IN NAIROBI, KENYA. SHILAP Revista de lepidopterología. 39 indexed citations
18.
Karanja, Nancy, et al.. (2010). DYNAMICS OF SOIL NEMATODES AND EARTHWORMS IN URBAN VEGETABLE IRRIGATED WITH WASTEWATER IN THE NAIROBI RIVER BASIN, KENYA. SHILAP Revista de lepidopterología. 12 indexed citations
19.
Lee-Smith, Diana, et al.. (2009). Nutrient cycles in three African cities.. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research). 17–19. 1 indexed citations
20.
Karanja, Nancy, et al.. (2002). Performance of indigenous Bradyrhizobia strains isolated from Kenyan soils. 1 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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