S.M. Nandwa

1.7k total citations
14 papers, 429 citations indexed

About

S.M. Nandwa is a scholar working on Management, Monitoring, Policy and Law, Agronomy and Crop Science and Environmental Chemistry. According to data from OpenAlex, S.M. Nandwa has authored 14 papers receiving a total of 429 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Management, Monitoring, Policy and Law, 3 papers in Agronomy and Crop Science and 3 papers in Environmental Chemistry. Recurrent topics in S.M. Nandwa's work include Soil and Land Suitability Analysis (4 papers), Soil Carbon and Nitrogen Dynamics (3 papers) and Agronomic Practices and Intercropping Systems (2 papers). S.M. Nandwa is often cited by papers focused on Soil and Land Suitability Analysis (4 papers), Soil Carbon and Nitrogen Dynamics (3 papers) and Agronomic Practices and Intercropping Systems (2 papers). S.M. Nandwa collaborates with scholars based in Kenya, Netherlands and United States. S.M. Nandwa's co-authors include A. de Jager, Peter Okoth, Mateete Bekunda, E.M.A. Smaling, R.P. Roetter, L.N. Gachimbi, F.N. Muchena, J.M. Kimetu, Patrick K. Mutuo and John Lynam and has published in prestigious journals such as Agriculture Ecosystems & Environment, Land Use Policy and Nutrient Cycling in Agroecosystems.

In The Last Decade

S.M. Nandwa

13 papers receiving 357 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S.M. Nandwa Kenya	10	206	104	102	102	87	14	429
J. Vlaming Netherlands	6	224 1.1×	132 1.3×	127 1.2×	73 0.7×	126 1.4×	13	495
John Mukalama Kenya	11	194 0.9×	167 1.6×	146 1.4×	126 1.2×	40 0.5×	15	450
S. Koala Burkina Faso	6	297 1.4×	132 1.3×	69 0.7×	152 1.5×	52 0.6×	9	475
Jean-Marie Douzet France	12	342 1.7×	135 1.3×	82 0.8×	107 1.0×	31 0.4×	33	545
François Lompo Burkina Faso	11	273 1.3×	179 1.7×	72 0.7×	150 1.5×	67 0.8×	48	557
Peter Okoth Kenya	10	168 0.8×	166 1.6×	100 1.0×	56 0.5×	78 0.9×	25	417
J. K. Ndufa Kenya	10	282 1.4×	125 1.2×	54 0.5×	131 1.3×	33 0.4×	17	482
A. Budelman Netherlands	14	148 0.7×	145 1.4×	87 0.9×	127 1.2×	56 0.6×	26	498
S.K. Kimani Kenya	8	181 0.9×	94 0.9×	69 0.7×	116 1.1×	41 0.5×	20	346
F.N. Muchena Kenya	12	171 0.8×	94 0.9×	89 0.9×	83 0.8×	84 1.0×	19	379

Countries citing papers authored by S.M. Nandwa

Since Specialization

Citations

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

Fields of papers citing papers by S.M. Nandwa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S.M. Nandwa. 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 S.M. Nandwa. The network helps show where S.M. Nandwa may publish in the future.

Co-authorship network of co-authors of S.M. Nandwa

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

All Works

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14 of 14 papers shown

Kimetu, J.M., D.N. Mugendi, A. Bationo, et al.. (2006). Partial balance of nitrogen in a maize cropping system in humic nitisol of Central Kenya. Nutrient Cycling in Agroecosystems. 76(2-3). 261–270. 25 indexed citations

Kimetu, J.M., D.N. Mugendi, C. A. Palm, et al.. (2004). Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with inorganic nitrogen source in Central Kenya. Nutrient Cycling in Agroecosystems. 68(2). 127–135. 47 indexed citations

Gachimbi, L.N., H. van Keulen, A. de Jager, et al.. (2004). Nutrient balances at farm level in Machakos (Kenya), using a participatory nutrient monitoring (NUTMON) approach. Land Use Policy. 22(1). 13–22. 30 indexed citations

Gachimbi, L.N., et al.. (2002). Participatory diagnosis of soil nutrient depletion in semi-arid areas of Kenya. Socio-Environmental Systems Modeling. 20 indexed citations

Nandwa, S.M.. (2001). Soil organic carbon (SOC) management for sustainable productivity of cropping and agro-forestry systems in Eastern and Southern Africa. Nutrient Cycling in Agroecosystems. 61(1-2). 143–158. 36 indexed citations

Nandwa, S.M., et al.. (2000). Use of mijingu rock phosphate fertilizer in acid soils of central Kenya.

Nandwa, S.M., D.D. Onduru, & L.N. Gachimbi. (2000). Soil fertility regeneration in Kenya. VTechWorks (Virginia Tech). 9 indexed citations

Onduru, D.D., et al.. (2000). Stakeholder perceptions of agricultural policies in Kenya.. OpenGrey (Institut de l'Information Scientifique et Technique). 1 indexed citations

Kibunja, Catherine, et al.. (2000). Sustainability of long-term bean productivity using maize stover incorporation, residual fertilizers and manure. 1 indexed citations

10.

Smaling, E.M.A., John Lynam, & S.M. Nandwa. (1998). Nutrient balances as indicators of productivity and substainability in Sub-Saharan African agriculture: Papers Presented during the conference Soil Fertility Management in Sub-Saharan Africa" held in Nairobi, February 1997. Agriculture Ecosystems & Environment. 71. 26 indexed citations

11.

Nandwa, S.M. & Mateete Bekunda. (1998). Research on nutrient flows and balances in East and Southern Africa: state-of-the-art1Paper contributes to EC INCO-DC project IC18-CT96-0092 (Spatial and temporal variation of soil nutrient stocks and management in sub-Saharan African farming systems).1. Agriculture Ecosystems & Environment. 71(1-3). 5–18. 70 indexed citations

12.

Jager, A. de, S.M. Nandwa, & Peter Okoth. (1998). Monitoring nutrient flows and economic performance in African farming systems (NUTMON). Agriculture Ecosystems & Environment. 71(1-3). 37–48. 107 indexed citations

13.

Smaling, E.M.A., et al.. (1992). Yield response of maize to fertilizers and manure under different agro-ecological conditions in Kenya. Agriculture Ecosystems & Environment. 41(3-4). 241–252. 49 indexed citations

14.

Nandwa, S.M.. (1973). Feeding ecology of rodents in Kenya. African Journal of Ecology. 11(3-4). 407–408. 8 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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