Dr. Samuel Njiri Ndirangu Publications

  1. Nyambura, N., Mogaka, H., Ndirangu, S. N., & Gichimu, B. (2026). ICT adoption and adoption intensity among tomato farmers in Kenya. Journal of Global Innovations in Agricultural Sciences.

  2. Njiru, M. M., Kaumi, F. K., Mogaka, H. R., Ndirangu, S. N., Kiprotich, S., Onyari, C. N., Muriithi, L., Mutungi, S. K., Otara, E. N., & Kamau, E. A. (2026). Climate adaptive extension services and resilience of sorghum farming households in semi-arid areas of Embu and Tharaka-Nithi Counties, Kenya. South African Journal of Agricultural Extension, 54(5), 63–88. https://doi.org/10.17159/2413-3221/2026/v54n5a22562

  3. Njiru, M. M., Kaumi, F. K., Mogaka, H. R., Ndirangu, S. N., Kiprotich, S., Onyari, C. N., Muriithi, L., Mutungi, S. K., Otara, E. N., & Kamau, E. A. (2026). Climate adaptive extension services and resilience of sorghum farming households in semi-arid areas of Embu and Tharaka-Nithi counties, Kenya. South African Journal of Agricultural Extension, *54*(5), 63–88. https://doi.org/10.17159/2413-3221/2026/v54n5a22562

  4. Njiro, M. M., Kirimi, F. K., Mogaka, H. R., Ndirangu, S. N., Kiprotich, S., Onyari, C. N., Murithi, L., Mutungi, S. K., Otara, N. E., Kyalo, A. M., & Kamau, E. A. (2026). Influence of climate change adaptation strategies on resilience of sorghum farming households in Embu and Tharaka-Nithi counties, Kenya. Journal of Agricultural Extension, *30*(1), 51–65. https://dx.doi.org/10.4314/jae.v30i1.6

  5. Njiru, M. M., Kirimi, F. K., Mogaka, H. R., Ndirangu, S. N., Onyari, C. N., Kiprotich, S., Muriithi, L., Elvin, O. N., Mutungi, S. K., Kyalo, A. M., & Kamau, E. (2026). Determinants of adoption intensity of climate change adaptation strategies among sorghum farming households in arid and semi-arid lands of Embu and Tharaka-Nithi Counties, Kenya. Journal of Global Innovations in Agricultural Sciences, 14,(2),446-458.
  6. Musau Wambua, D., N Ndirangu, S., Mogaka, H., & Gichimu, B. M. (2025). Determinants of the produced coffee volumes and choice of marketing channels among smallholder coffee farmers in Embu and Kirinyaga counties, Kenya. Humanities and Social Sciences Communications, 12(1), 1-9.
  7. Meti, T., Ndirangu, S., & Nyarindo, W. (2025). Determinants of Adoption of Climate‐Smart Agricultural Practices: The Case of Smallholders in Makueni County, Kenya. Advances in Agriculture, 2025(1), 4159649.
  8. Kyalo, A.M., H. Mogaka, F.K. Kirimi, K. Kizito, S.N. Ndirangu, C.N. Onyari, L. Muriithi, O.N. Elvin, S.K. Mutungi, S. Kiprotich, M.M. Njiru and E.A. Kamau. 2025. Exploring Socio-Economic Characteristics on Adoption Intensity of Biochar Among Farming Households in Sub-Humid Regions of Western Kenya. Journal of Global Innovations in Agricultural Sciences 13(2). DOI: https://doi.org/10.22194/JGIAS/25.1608
  9. Maindi, C. N., Nyarindo, W. N., Ndirangu, S.N. and Isaboke H.N  (2024) Collective action typologies and their implications for policy targeting:The case of mallholder households from central region of Kenya, Journal of Agriculture and Food Research, 18 (101288). Available at https://www.sciencedirect.com/science/article/pii/S2666154324003259
  10. Maindi, C.N., Nyarindo W. N., Ndirangu S. N and Isaboke H.N. (2024). Debunking the one-size-fits-all approach: Synergistic and trade-off effects of collective action on household food security among the smallholder farmers in central Kenya. Journal of Global Innovations in Agricultural Sciences 12:811-826.
  11. Nthiga, K.M., Ndirangu, S.N. and Isaboke H.N. (2024). Exploring Factors Influencing Market Engagement and Marketing Channel Selection among Smallholder Macadamia Farmers in Embu West Sub County, Kenya. Journal of Global Innovations in Agricultural Sciences 12:333-339
  12. Kiprotich, S., Mogaka, H., Ndirangu, S. N., & Onyari, C. N. (2023) Determinants of adoption and adoption intensity of intergrated soil fertility managemnt technologies among sorghum farmers in upper Eastern Kenya. Soil Use and Management. https://doi.org/10.1111/sum.12958
  13. Otara, E. N., Mogaka, H. R., Ndirangu, S. N., & Mugwe, J. N. (2023). Socioeconomic Factors Influencing Uptake of Regenerative Agriculture Technologies in the Dry-lands of Embu County, Kenya. Journal of Agricultural Extension, 27(1), 1-12. https://dx.doi.org/10.4314/jae.v27i1.1
  14. Isaboke, H. N., & Ndirangu, S. N. (2022). Determinants of smallholders’ choice of avocado marketing outlets and profitability in Murang’a County, Kenya. SN Business & Economics, 2(8), 1-25.
  15. Muchangi, N. M., Mogaka, H. R., Ndirangu, N. S., & Gichimu, B. M. (2021). Factors Influencing Adoption of Improved Cultivars of Macadamia (Macadamia spp.) among Small-Scale Farmers in Embu County, Kenya. Journal of Agricultural Extension, 25(4), 119-126.
  16. Okeyo, S. O., Ndirangu, S. N., Isaboke, H. N., Njeru, L. K., & Omenda, J. A. (2020). Analysis of the determinants of farmer participation in sorghum farming among small-scale farmers in Siaya County, Kenya Samuel. Scientific African Journal, 10(November), e00559. https://doi.org/10.1016/j.sciaf.2020.e00559
  17. Karing’u, K. N., Isaboke, H. N., & Ndirangu, S. N. (2020). Transaction costs and participation in avocado export marketing in Murang’a County, Kenya. Journal of Agribusiness in Developing and Emerging Economies. https://doi.org/10.1108/JADEE-12-2019-0206
  18. Musyoka, J. K., Isaboke, H. N., & Ndirangu, S. N. (2020). Farm-Level Value Addition among Small-scale Mango Farmers in Machakos County, Kenya. Journal of Agricultural Extension, 24(3), 85–97.
  19. Okeyo, S.O., Ndirangu, S.M, Isaboke, H.N., and Njeru, L. K., (2020). Determinants of sorghum productivity among small-scale farmers in Siaya County, Kenya. African Journal of Agricultural Research 16(5): 722-731
  20. Mwangi, T. M., Ndirangu, S.M, Isaboke, H.N. (2020). Technical efficiency in tomato production among smallholder farmers in Kirinyaga County, Kenya. African Journal of Agricultural Research 16(5): 667-677
  21. Ambetsa, F. L., Mwangi, S. C., Ndirangu, S.M (2020). Technical efficiency and its determinants in sugarcane production among smallholder sugarcane farmers in Malava sub-county, Kenya. African Journal of Agricultural Research 15(3): 351-360
  22. Wambua, D. M., Ndirangu, S.M., Njeru, L. K., Gichimu, B.M. (2019). Effects of recommended improved crop technologies and socio-economic factors on coffee profitability among smallholder farmers in Embu County, Kenya. African Journal of Agricultural Research14(34): 1957-1966
  23. Murimi, E. K., Njeru, L. K., Gichimu, B.M., Ndirangu, S.M. (2019). Effects of Urban Expansion on Agricultural Resources: A Case Study of Embu Town in Kenya. Asian Journal of Agricultural Extension, Economics & Sociology 33(4): 1-11
  24. Ndirangu, S.M, Mbogoh, S.G, Mbatia, O.L.E (2018). Evaluation of the Elasticity of Farm Output among Smallholder Farmers in Selected Agro-Ecological Zones of Embu County, Kenya. Asian Journal of Agricultural Extension, Economics & Sociology 26(3): 1-10, 2018; Article no.AJAEES.43048 ISSN: 2320-7027 PDF Version
  25. Ndirangu, S.M,  Mbogoh, S.G, Mbatia, O.L.E (2017). An Analysis of the Impact of Agro-Ecological Zones on the Influence of the Key Factors That Affect Food Security: The Case of the Embu County in Kenya. World Journal of Research and Review (WJRR) 5(2): 64-72
  26. Ndirangu, S.M,  Mbogoh, S.G, Mbatia, O.L.E (2017). Effects of Land Fragmentation on Food Security in Three Agro-ecological Zones of Embu County in Kenya. Asian Journal of Agricultural Extension, Economics & Sociology 18(4): 1-9