Position: Lecturer
Title/Qualifications: PhD
Department: Agricultural Science and Technology
Contact Address: P.O. Box 43844 , 00100 Nairobi
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RESEARCH AND PUBLICATIONS

Papers/Publications in Refereed Journals

• Heydarzadeh S, Arena C, Vitale E, Rahimi A, Mirzapour M, Nasar J, Kisaka O, Sow S, Ranjan  S,  Gitari (2023). Impact of different fertilizer sources under supplemental irrigation and rain-fed conditions on eco-physiological responses and yield characteristics of dragon's head (Lallemantia iberica). Plants. 12: 1693. https://doi.org/10.3390/plants12081693.
• Mwakidoshi ER, Gitari HI, Muindi EM, Wamukota AW, Seleiman MF, Maitra (2023). Smallholder farmers’ knowledge of the use of bioslurry as a soil fertility amendment for potato production in Kenya Land Degradation & Development, https://doi.org/10.1002/ldr.4601.
• Haile MA, Karanja NN, Nyawade SO, Gitari H, Cheruto G, Nyawira L, Raza MA, Kamau S. (2023). Lupin and Lima beans diminish Potatoes’ N and P uptake, uptake efficiency and use efficiency. (2023). Potato Research. https://doi:1007/s11540-023-09625-9.
• Rahimi A, Gitari H, Lyons G, Heydarzadeh S, Tuncturk M, Tuncturk R. (2023). Effects of Vermicompost, Compost and Animal Manure on Vegetative Growth, Physiological and Antioxidant Activity Characteristics of Thymus vulgaris under Water Stress. (2022). Yuzuncu Yil University Journal of Agricultural Sciences, 32(1): 40–53. https://doi.org/10.29133/yyutbd.1124458.
• Goher R, Alkharabsheh HM, Seleiman MF, Diatta AA, Gitari H, Wasonga DO, Khan GR, Akmal M. (2023). Impacts of heat shock on productivity and quality of Triticum aestivum at different growth stages. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 51(1): 13090. https://doi.org/10.15835/nbha51113090.
• Kisaka MO, Shisanya C, Cournac L, Manlay JR, Gitari H, Muriuki J. (2023). Integrating no-tillage with agroforestry augments soil quality indicators in Kenya’s dry-land agroecosystems. Soil & Tillage Research. 227: 105586. https://doi.org/1016/j.still.2022.105586.
• Nasar J, Zhao CJ, Khan R, Gul H, Gitari H, Shao Z, Abbas G, Haider I, Iqbal Z, Ahmed W, Rehman R, Liang QP, Zhou XB, Yang J. (2023). Maize-soybean intercropping at optimal N fertilization increases the N uptake, N yield and N use efficiency of maize crop by regulating the N assimilatory enzymes. Frontiers in Plant Science. 13: https://doi.org/10.3389/fpls.2022.1077948.
• Uwimana J, Sakha, M, Danga B, Gitari H, Gweyi-Onyango JP (2022). Involvement of plant growth regulators and varieties in the multiplication of cassava planting materials: A case study of Rwanda. International Journal of Bioresource Science, 9(2): 163–1 https://doi.org/10.30954/2347-9655.02.2022.14.
• Raza MA, Yasin HS, Gul H, Qin R, Din AMU, Khalid MHB, Hussain S, Gitari H, Saeed A, Wang J, Rezaei-Chiyaneh E, Sabagh AE, Manzoor A, Fatima A, Ahmad S, Yang F, Sikalicky M, Yang W. (2022). Maize/soybean strip intercropping produces higher crop yields and saves water under semi-arid conditions. Frontiers in Plant Science. 13: https://doi.org/10.3389/fpls.2022.1006720.
• Nasar J, Wang GY, Zhou FJ, Gitari H, Zhou XB, Karim Tabl, KM, Hasan ME, Ali H, Waqas, MM, Ali, I, Jahan MS. (2022). Nitrogen fertilization coupled with foliar application of iron and molybdenum improves shade tolerance of soybean under maize soybean intercropping. Frontiers in Plant Science. 13: 1014640. https://doi.org/10.3389/fpls.2022.1014640.
• Nasar J, Wang GY, Ahmad S, Muhammad I, Zeeshan M, Gitari H, Adnan M, Fahad S, Khalid MHB, Zhou X-B, Abdelsalam NR, Ahmed GA, Hasan ME. (2022). Nitrogen fertilization coupled with iron foliar application improves the photosynthetic characteristics, photosynthetic nitrogen use efficiency, and the related enzymes of maize crops under different planting patterns. Frontiers in Plant Science. 13: 988055. https://doi.org/3389/fpls.2022.988055.
• Mirriam A, Mugwe J, Raza, MF, Seleiman MA, Maitra S, Gitari HI. (2022). Aggrandizing soybean yield, phosphorus use efficiency and economic returns under phosphatic fertilizer application and inoculation with Bradyrhizobium. Journal of Soil Science and Plant Nutrition. 22: 5086–5098. https://doi.org/10.1007/s42729-022-00985-8.
• Parecido RJ, Soratto RP, Perdoná MJ, Gitari HI. (2022). Foliar-applied silicon may enhance fruit ripening and increase yield and nitrogen use efficiency of Arabica coffee. European Journal of Agronomy. 140: 126602. https://doi.org/10.1016/j.eja.2022.126602.
• Ngugi MM, Muui C, Gweyi-Onyango JP, Gitari HI. (2022). Influence of silicon on translocation, compartmentation and uptake of lead in leafy vegetables. International Journal of Agriculture, Environment, and Biotechnology. 15(1): 33–50. https://doi.org/30954/0974-1712.01.2022.5.
• Chappa LR, Mugwe J, Maitra S, Gitari H. (2022). Current status, and prospects of improving sunflower production in Tanzania through intercropping with Sunn hemp. International Journal of Bioresource Science. 9: 1–8. https://doi.org/30954/2347-9655.01.2022.1.
• Cheptoek RP, Nasar J, Ochieng’ IO, Maitra S, Heydarzadeh S, Gitari HI. (2022). Role of Minjingu Rock Phosphate and Nitrogen Fertilizer in improving phosphorus and nitrogen use efficiency in maize: A Kenyan Case Study. International Journal of Bioresource Science. 9: 9–19. https://doi.org/30954/2347-9655.01.2022.2.
• Mwadalu R, Mochoge B, Mwangi M, Gitari H. (2022). Heightening sorghum nitrogen uptake while maintaining optimal soil nutrient levels through mineral fertiliser application. Journal of Applied Life Sciences and Environment. 54(4): 458–472. https://doi.org/10.46909/journalalse-2021-033.
• Sousa WS, Soratto RP, Peixoto DS, Campos TS, da Silva MB, Souza AGV, Teixeira IR, Gitari HI. (2022). Effects of Rhizobium inoculum compared with mineral nitrogen fertilizer on nodulation and seed yield of common bean. A meta-analysis. Agronomy for Sustainable Development. 42(3): 52. https://doi.org/10.1007/s13593-022-00784-6.
• Ngugi MM, Muui C, Gweyi-Onyango JP, Gitari HI (2022). Influence of silicon on translocation, compartmentation and uptake of lead in leafy vegetables. International Journal of Agriculture, Environment, and Biotechnology. 15(1): 33–50. https://doi.org/10.30954/0974-1712.01.2022.5
• Sousa WS, Soratto RP, Peixoto DS, Campos TS, da Silva MB, Souza AGV, Teixeira IR, Gitari HI. (2022). Effects of Rhizobium inoculum compared with mineral nitrogen fertilizer on nodulation and seed yield of common bean. A meta-analysis. Agronomy for Sustainable Development. 42(3): 52. https://doi.org/10.1007/s13593-022-00784-6.
• Mwadalu R, Mochoge B, Mwangi M, Maitra S, Gitari H (2022). Response of Gadam sorghum (Sorghum bicolor) to farmyard manure and inorganic fertilizer application. International Journal of Agriculture, Environment, and Biotechnology. 15(1): 51–60. https://doi.org/10.30954/0974- 1712.01.2022.6
• Ngugi MM, Gitari HI, Muui CW, Gweyi-Onyango JP (2022). Growth tolerance, concentration, and uptake of heavy metals as ameliorated by silicon application in vegetables. International Journal of Phytoremediation. https://doi.org/10.1080/15226514.2022.2045251
• Heydarzadeh S, Hosseinpour A, Gitari H, Maitra S, Rahimi A, (2021). Improving quantitative and qualitative properties of cotton through the use of organic and chemical fertilizers under water deficit stress conditions. International Journal of Bioresource Science. 8(2): 69–80. https://doi.org/10.30954/2347-9655.02.2021.2.
• Mwakidoshi ER, Gitari HI, Maitra S, Muindi EM. (2021). Economic importance, ecological requirements, and production constraints of potato (Solanum tuberosum L.) in Kenya. International Journal of Bioresource Science. 8(2): 61–68. https://doi.org/10.30954/2347-9655.02.2021.1
• Soratto RP, Perdoná MJ, Parecido RJ, Pinotti RN, Gitari HI. (2022). Turning biennial into biannual harvest: Long-term assessment of Arabica coffee–macadamia intercropping and irrigation synergism by biological and economic indices. Food and Energy Security. https://doi.org/10.1002/fes3.365.11(2): e365
• Heydarzadeh S, Gitari H. Rahimi A, Khiavi HK, Maitra S, Hosseinpour A. (2021). Yield and quality traits of field-grown sugar beet (Beta vulgaris L.) in response to foliar application of micronutrients and different levels of manure. International Journal of Bioresource Science. 8(2): 103–112. https://doi.org/10.30954/2347-9655.02.2021.7
• Rahimi A, Mohammadi MM, Moghadam SS, Heydarzadeh S, Gitari H. (2022). Effects of stress modifier biostimulants on vegetative growth, nutrients and antioxidants contents of garden thyme (Thymus vulgaris L.) under water stress. Journal of Plant Growth Regulation. https://doi.org/10.1007/s00344-022-10604-6
• Parecido RJ, Soratto RP, Guidorizzi FVC, Perdoná MJ, Gitari HI. (2022). Soil application of silicon enhances initial growth and nitrogen use efficiency of Arabica coffee plants. Journal of Plant Nutrition. 45(7): 1061–1071. https://doi.org/10.1080/01904167.2021.2006707
• Otieno MA, Gitari HI, Danga B, Karuma AN (2022). Soil properties and fertility management with respect to Capsicum (Capsicum annuum L.) production in Nairobi Peri-urban Counties. Journal of Soil Science and Plant Nutrition. 22: 374–392. https://doi.org/10.1007/s42729-021-00655-1
• Dr. Harun Gitari June, 2022 Page 4 of 9 13. Michelle AO, Gitari HI, Danga B, Raza MA, Kisaka OM, Elbeltagi A, Singh RJ, Soratto RP. (2021). Application of GIS in land evaluation and development of Suitability Map for capsicum production in Nairobi Peri-Urban Counties. Journal of Remote Sensing & GIS 10(6): 290. https://doi.org/10.35248/2469-4134.21.10.290
• Nyawade S, Gitari HI, Karanja NN, Gachene CKK, Schulte-Geldermann E, Parker M (2021). Yield and evapotranspiration characteristics of potato-legume intercropping simulated using a dual coefficient approach in a tropical highland. Field Crops Research. 274: https://doi.org/10.1016/j.fcr.2021.108327
• Cheptoek RP, Gitari HI, Mochoge B, Kisaka OM, Otieno E, Maitra S, Nasar J, Seleiman MF (2021) Maize productivity, economic returns and phosphorus use efficiency as influenced by lime, Minjingu Rock Phosphate and NPK inorganic fertilizer. International Journal of Bioresource Science 08: 47– 60. https://doi.org/10.30954/2347-9655.01.2021.7
• Seleiman MF, Aslam MT, Alhammad BA, Hassan MU, Maqbool R, Chattha MU, Khan I, Gitari HI, Uslu OS, Roy R, Battaglia ML. (2021). Salinity Stress in Wheat: Effects, Mechanisms and Management Strategies. Phyton-International Journal of Experimental Botany. 91(4): 667–694. https://doi.org/10.32604/phyton.2022.017365
• Heydarzadeh S, Gitari H, Rahimi A, Khiavi HK, Hosseinpour A (2021). The physiological properties of lentil (Lens culinaris Medik.) in response to mycorrhizal fungi and phosphatesolubilizing bacterium under irrigation condition. International Journal of Bioresource Science 8(2):1–14 https://doi.org/10.30954/2347-9655.01.2021.1
• Nasar J, Khan W, Khan MZ, Gitari HI, Gbolayori JF, Moussa AA, Mandozai A, Rizwan N, Anwari G, Maroof SM. (2021). Photosynthetic activities and photosynthetic nitrogen use efficiency of maize crop under different planting patterns and nitrogen fertilization. Journal of Soil Science and Plant Nutrition. 21: 2274–2284. https://doi.org/10.1007/s42729-021-00520-1
• Faridvand S, Rezaei-Chiyaneh E, Battaglia M, Gitari H, Raza MA, Siddique KHM. (2021). Application of bio and chemical fertilizers improves yield, and essential oil quantity and quality of Moldavian balm (Dracocephalum moldavica L.) intercropped with mung bean (Vigna radiata L.). Food and Energy Security. 11: e319. https://doi.org/10.1002/fes3.319
• Parecido RJ, Soratto RP, Perdoná MJ, Gitari HI. Dognani V, Santos A R, Silveira L. (2021). Liming method and rate effects on soil acidity and Arabica coffee nutrition, growth, and yield. Journal of Soil Science and Plant Nutrition. 21: 2613–2625: https://doi.org/10.1007/s42729-021-00550-9
• Raza, MA, Gul H, Wang J, Yasin HS, Qin R, Khalid MHB, Naeem M, Feng LY, Iqbal N, Gitari H, Ahmad S, Battaglia M, Ansar M, Yang F, Yang W. (2021). Land productivity and water use efficiency of maize-soybean strip intercropping systems in semi-arid areas: A case study in Punjab Province, Pakistan. Journal of Cleaner Production. 308, 127282. https://doi.org/10.1016/j.jclepro.2021.127282
• Parecido RJ, Soratto RP, Perdoná MJ, Guidorizzi FVC, Gomes GG, Paula RA, Gitari HI. (2021). Limestone increased coffee yield and profitability more than phosphogypsum or their combination. Agronomy Journal. 113(4): 3586–3599. https://doi.org/10.1002/agj2.20712
• Ngugi MM, Gitari HI, Muui C, Gweyi-Onyango JP. (2021). Cadmium mobility, uptake and accumulation in spinach, kale and amaranths vegetables as influenced by Silicon fertilization. Bioremediation Journal. 26(2): 113–127. https://doi.org/10.1080/10889868.2021.1924111
• Ochieng’ IO, Gitari HI, Mochoge B, Rezaei-Chiyaneh E, Gweyi-Onyango JP. (2021). Optimizing maize yield, nitrogen efficacy and grain protein content under different N forms and rates. Journal Dr. Harun Gitari June, 2022 Page 5 of 9 of Soil Science and Plant Nutrition. 21(3): 1867–1880. https://doi.org/10.1007/s42729-021-00486-0 
• Mugo NJ, Karanja NN, Gachene CK, Dittert K, Gitari HI, Schulte-Geldermann E (2021). Response of potato crop to selected nutrients in Central and Eastern highlands of Kenya. Cogent Food & Agriculture. 7: 1898762. https://doi.org/10.1080/23311932.2021.1898762
• Panda SK, Panda P, Pramanick B, Shankar T, Praharaj S, Saren BK, Gitari HI, Brahmachari K, Hossain A, Maitra S (2020). Advantages of Cotton Based Intercropping System: A Review. International Journal of Bioresource Science. 7(2): 51–57. https://doi.org/10.30954/2347-9655.02.2020.2 
• Nduwimana D, Mochoge B, Danga B, Masso C, Maitra S, Gitari H (2020). Optimizing nitrogen use efficiency and maize yield under varying fertilizer rates in Kenya. International Journal of Bioresource Science, 7(2): 63–73. https://doi.org/10.30954/2347-9655.02.2020.4
• Maitra S, Hossain A, Brestic M, Skalicky M, Ondrisik P, Gitari H, Brahmachari K, Shankar T, Bhadra P, Palai JB, Jena J, Bhattacharya U, Duvvada SK, Lalichetti S, Sairam M (2020). Intercropping system – A low input agricultural strategy for food and environmental security. Agronomy. 11(2): 343. https://doi.org/10.3390/agronomy11020343.
• Hassan MJ, Raza MA, Rehman SU, Ansar M, Gitari H, Khan I, Wajid M, Ahmed M, Shah GA, Peng Y, Li Z (2020). Effect of cadmium toxicity on growth, oxidative damage, antioxidant defense system and cadmium accumulation in two sorghum cultivars. Plants. 9(11): 1575. https://doi.org/10.3390/plants9111575
• Maitra S, Gitari H (2020). Scope for adoption of intercropping system in Organic Agriculture. Indian Journal of Natural Sciences. 11(63): 28624–28631
• Nyawade S, Gitari HI, Karanja NN, Gachene CK, Schulte-Geldermann E, Sharma K, Parker M (2020). Enhancing climate resilience of rain-fed potato through legume intercropping and silicon application. Frontier in Sustainable Food Systems. 4: 566345. https://doi.org/10.3389/fsufs.2020.566345
• Gitari HI, Nyawade SO, Kamau S, Karanja NN, Gachene CKK, Raza MA, Maitra S, SchulteGeldermann E (2020). Revisiting intercropping indices with respect to potato-legume intercropping systems. Field Crops Research. 258: 107957. https://doi.org/10.1016/j.fcr.2020.107957
• Nyawade SO, Karanja NN, Gachene CKK, Gitari HI, Schulte-Geldermann E, Parker M (2020). Optimizing soil nitrogen balance in a potato cropping system through legume intercropping. Nutrient Cycling in Agroecosystems. 117: 43–59. https://doi.org/10.1007/s10705-020-10054-0
• Gitari HI, Shadrack N, Kamau S, Gachene CKK, Karanja NN, Schulte-Geldermann E (2020). Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops. Journal of Plant Nutrition. 43(6): 864878. https://doi.org/10.1080/01904167.2019.1702202
• Gitari HI, Nyawade SO, Kamau S, Gachene CKK, Karanja NN, Schulte-Geldermann E (2019). Increasing potato equivalent yield increases returns to investment under potato-legume intercropping systems. Open Agriculture. 4: 623–629. https://doi.org/10.1515/opag-2019-0062
• Nyawade SO, Karanja NN, Gachene CKK, Gitari HI, Schulte-Geldermann E, Parker M (2019). Intercropping optimizes soil temperature and increases crop water productivity and radiation use efficiency of rainfed potato. American Journal of Potato Research, 96 (5): 457–471. http://dx.doi.org/10.1007/s12230-019-09737-4
• Nyawade SO, Gachene CKK, Karanja NN, Gitari HI, Schulte-Geldermann E, Parker M (2019). Dr. Harun Gitari June, 2022 Page 6 of 9 Controlling soil erosion in smallholder potato farming systems using legume intercrops. Geoderma Regional, 17 e00225. https://doi.org/10.1016/j.geodrs.2019.e00225
• Nyawade SO, Karanja NN, Gachene CKK, Gitari HI, Schulte-Geldermann E, Parker ML (2019). Short-term dynamics of soil organic matter fractions and microbial activity in smallholder legume intercropping systems. Applied Soil Ecology. 142: 123–135. https://doi.org/10.1016/j.apsoil.2019.04.015.
• Gitari HI, Gachene CKK, Karanja NN, Kamau S, Nyawade S, Schulte-Geldermann E (2019). Potato-legume intercropping on a sloping terrain and its effects on soil physico-chemical properties. Plant and Soil. 438: 447–460. https://doi.org/10.1007/s11104-019-04036-7
• Gitari HI, Gachene CKK, Karanja NN, Kamau S, Nyawade S, Sharma K, Schulte-Geldermann E (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. https://doi.org/10.1016/j.agwat.2018.06.005
• Gitari HI, Karanja NN, Gachene CKK, Kamau S, Sharma K, Schulte-Geldermann E (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. https://doi.org/10.1016/j.fcr.2018.03.019
• Gitari HI, Mochoge BE, Danga BO (2015). Effect of Lime and Goat Manure on Soil Acidity and Maize (Zea mays) Growth Parameters at Kavutiri, Embu County - Central Kenya. Journal of Soil Science and Environmental Management. 6: 275–283. https://academicjournals.org/journal/JSSEM/article-abstract/FA9BA8255355.

Book Chapters

• Sairaam M, Maitra S, Praharaj S, Nath S, Shankar T, Sahoo U, Santosh DT, Sagar L, Panda M, Priya GS, Ashwini TR, Gaikwad DJ, Hossain A, Pramanick B, Jatav H.S, Gitari H.I, Aftab T. (2023). An Insight into the Consequences of Emerging Contaminants in Soil and Water and Plant Responses. In: Aftab, T. (Ed). Emerging Contaminants and Plants. Springer, Cham. https://doi.org/10.1007/978-3-031-22269-6_1.
• Mirzapour M, Valizadeh N, Heydarzadeh S, Rahimi A, Gitari H. (2022). Factors Affecting the Production of Secondary Metabolites in Medicinal Plants. In: Ozyazici G (Ed). New Development on Medicinal and Aromatic Plants-II, Iksad Publishing House, Turkey. Pg 3– ISBN: 978-625-8213-33-1. https://iksadyayinevi.com/home/new-development-on-medicinal-and-aromatic-plants-ii.
• Jena J, Maitra S, Hossain A, Pramanick B, Gitari HI, Praharaj S, Shankar T, Palai JB, Rathore A, Mandal TK, Jatav HS. (2022). Role of Legumes in Cropping System for Soil Ecosystem Improvement. In: Jatav HS, Rajput VD (Eds.). Ecosystem Services: Types, Management and Benefits. Nova Science Publishers, Inc. 415 Oser Avenue, Suite N Hauppauge, NY, 11788 USA. https://doi.org/10.52305/PFZA6988.
• Maitra S, Praharaj S, Hossain A, Patro TSSK, Pramanick B, Shankar T, Pudake RN, Gitari HI, Palai JB. (2022). Small Millets: The Next-Generation Smart Crops in the Modern Era of Climate Change. In: Pudake RN, Solanke AU, Sevanthi AM, Rajendrakumar P. (Eds) Omics of Climate Resilient Small Millets. Springer, Singapore. https://doi.org/10.1007/978-981-19-3907-5_1.

Papers Presentation at Professional Conferences

• Gitari H, Kamau S, Nyawade S. (2020). Crop water productivity and economic return of rain fed potato-legume intercropping systems. Book of Abstracts. GEA International (Geo Eco-Eco Agro) Online Conference, May 28–31, 2020. Podgorica, Montenegro. Online presentation.
• Nyawade S, Gitari H, Kamau S. (2020). Silicon exerts additive effects on phosphorus acquisition by potato intercropped with chickpea. Book of Abstracts. GEA International (Geo Eco-Eco Agro) Online Conference, May 28–31, 2020. Podgorica, Montenegro.
• Gitari H, Nyawade S. (2020). Spatial variability of soil properties in a 2-year field cultivated with potato-legume intercrops. Book of Abstracts. GEA International (Geo Eco-Eco Agro) Online Conference, May 28–31, 2020. Podgorica, Montenegro.
• Nyawade S, Gitari H. (2020). Unlocking legume intercropping technology in smallholder potato farming systems for climate change adaptation. Book of Abstracts. GEA International (Geo Eco-Eco Agro) Online Conference, May 28–31, 2020. Podgorica, Montenegro.
• Gitari HI, Karanja NN, Gachene CKK, Nyawade SO, Kamau S, Schulte-Geldermann E. (2019). Assessing profitability of fertilizer use in potato-legume intercropping systems. AGRO 2019 Conference, October 22–24, 2019. Nairobi, Kenya.
• Nyawade S, Karanja N, Gachene C, Gitari H, Kamau S, Atieno E, Sharma K, Schulte-Geldermann Parker M. (2019). Soil and water conservation and nutrient use efficiencies in smallholder potato-legume intercropping systems. Eleventh triennial African Potato Association (APA) Conference, August 25–29, 2019. Kigali, Rwanda.
• Nyawade OS, Gitari HI, Karanja NN, Gachene CKK, Schulte-Geldermann, Parker M. (2018). Intercropping potato with grain legumes for enhanced productivity and climate change adaptation in smallholder farms, Regional Universities Forum for Capacity Building in Agriculture (RUFORUM) Biennial Conference, October 22-26, 2018. Nairobi, Kenya. RUFORUM Working Document Series 17(1): 377–381.17: 377–381.
• Gitari HI, Gachene CKK, Karanja NN, Schulte-Geldermann E. (2017). Water use efficiency and yield of potato in potato-legume-based intercropping systems in a semi- humid region, Kenya. Twentieth European Association for Potato Research (EAPR) Conference, July 9–14, 2017.Versailles, France.
• Gitari HI, Gachene CKK, Karanja NN, Schulte-Geldermann E. (2016). Effect of legume cover crops on potato (Solanum tuberosum L.) water use efficiency and yield. Tenth Triennial African Potato Association (APA) Conference, October 9–13, 2016. Addis Ababa, Ethiopia.
• Gitari HI, Gachene CKK, Karanja NN, Schulte-Geldermann E. (2016). Evaluation of potato (Solanum tuberosum ) nutrient use efficiency under legume intercropping systems. Annual Tropical and Subtropical Agricultural and Natural Resource Management (TROPENTAG) Conference, September 18–21, 2016. Vienna, Austria.