Dr Innocent Wadzanayi Nyakudya

Dr Innocent Wadzanayi NyakudyaContact Details

Mobile: +263772773746; +263712635474
E-mail: pupunege@yahoo.com; inyakudya@buse.ac.zw
Skype: wadzanayinyakudya

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Academic Qualifications and Awarding Institutions

  • PhD. Title: Water management for rainfed maize in semi-arid Zimbabwe. Wageningen University 
  • M.Sc. Soil and Water (Irrigation), Wageningen University
  • B.Sc. Agriculture Honours (Soil Science), University of Zimbabwe

National/International Awards 

  • 1993: Netherlands Universities Foundation for International Cooperation (NUFFIC) M.Sc. Scholarship for studying at Wageningen University under the Zimbabwe programme for Women’s Studies, Extension, Sociology and Irrigation (ZIMWESI) project.
  • 2007: NUFFIC fellowship for participating in the International Course on Land Drainage (ICLD) at ILRI, Wageningen, Netherlands.
  • 2009: NUFFIC fellowship for participating in Service-Oriented Management of Irrigation Systems at IHE-UNESCO, Delft Wageningen, Netherlands.
  • 2010:  NUFFIC PhD Scholarship for studying at Wageningen University, Netherlands.

Research Interests and Expertise

Research interests include improving crop productivity and environmental sustainability. I have experience in field measurements and crop modelling using FAO’s AquaCrop. In the field of environmental management my interests are in land conservation through rainwater management and agroforestry technologies, and reclamation of degraded land including mine slime dams.

Current Research : Flood-Recession Cropping Project

Funding Organization: University Research Board

Brief description of the project: Flood-recession cropping is an ancient practice whereby farmers plant crops in floodplains as soon as floodwaters subside and the soil is workable. This cropping system is represents a unique adaptation to climate extremes namely drought and floods, and poor soil fertility that constrain crop production in semi-arid Sub-Saharan Africa. The current study aims at improving crop yields through development of appropriate agronomic practices. The project consists of participatory field experiments and modeling crop growth. The study is being conducted in the Zambezi Valley in northern Zimbabwe.

Research Team Leader: Innocent Wadzanayi Nyakudya (PhD),

E-mail: pupunege@yahoo.com, inyakudya@buse.ac.zw 

Other Team Members:

  • Luke Jimu (PhD)
  • Chimweta Moreblessing (PhD Student)

Rainwater Harvesting Project

Funding Organization: University Research Board, International Foundation for Science (IFS) Grant

Brief description of the project: Inadequate and poor rainfall distribution and poor soil fertility are the major crop production constraints in semi-arid Sub-Saharan Africa. Irrigation is the best way to produce crops in this region but competing claims for water, coupled with prohibitive development and maintenance costs often limit irrigation development in the region. Rainwater harvesting is a viable option for mitigating against droughts and dry spells in the region. The study is being conducted in Marange Communal Lands in Manicaland Province.  

Research Team Leader: Prof. George Nyamadzawo 

E-mail:gnyamadzawo@buse.ac.zw 

Other Team Members:

Mine Dump Reclamation Project

Funding Organization: None

Brief description of the project: Mining is important for socio-economic development of many countries in the world and the industry contributes significantly to the Gross Domestic Product in some nations. However, mining is associated with production of huge quantities of mine wastes that degrade the environment when they are deposited in mine dumps. Reclamation efforts are essential in order to mitigate the negative environmental effects. The currently study is on microbial community development in mine tailings dumps.

Research Team Leader: Innocent Wadzanayi Nyakudya (PhD) E-mail: pupunege@yahoo.com, inyakudya@buse.ac.zw 

Other Team Members:

  1. Luke Jimu (PhD)
  2. Chimweta Moreblessing (PhD Student)

Completed Projects and Major Findings

My last major project was my PhD which I completed in May 2014. The PhD aimed to untangle previous controversial research results and determine strategies that can be used by policy makers and farmers to optimize rainwater management for improving maize crop yields in semi–arid Zimbabwe by combining literature review of maize conservation tillage research, long–term rainfall analysis, field experimentation and crop modelling. 

Findings showed that contrary to conventional wisdom rainfall amount did not change significantly between 1980 and 2008 for Rushinga district. Farmers experience induced or (pseudo–drought)  due to less plant available water linked to land degradation. Mulch ripping and 1.0 m tied ridging yielded better than conventional tillage in years with  ≤ 500 mm annual rainfall but conventional tillage performed better in years with rainfall > 500 mm. Water harvested in infiltration pits moved only two meters from the centre of the pits downslope  and water stored in the pits can be used for horticultural crops. Modelling with AquaCrop showed high sensitivity of crop yield with rooting depth and plant density.

Selected Publications XII. Selected Publications in International Peer-Reviewed Journals

  1. Mukaro E, Nyakudya IW, Jimu L. 2017. Edaphic conditions, aboveground carbon stocks and plant diversity on nickel mine tailings dump vegetated with Senegalia polyacantha  (Willd.) Seigler & Ebinger. Accepted in Land Degdadation and Development. DOI: 10.1002/ldr.2696
  2. Nyakudya IW, Stroosnijder L. 2014. Effect of rooting depth, plant density and planting date on maize (Zea mays L.) yield and water use efficiency in semi-arid Zimbabwe: Modelling with AquaCrop.  Agricultural Water Management 146: 280-296. DOI: org/10.1016/j.agwat.2014.08.024
  3. Nyakudya IW,  Stroosnijder L. 2014. Conservation tillage of rainfed maize in semi-arid Zimbabwe: A review. Soil & Tillage Research. 145:184–197. DOI: org/10.1016/j.still.2014.09.003
  4. Nyakudya IW, Stroosnijder L, Nyagumbo I. 2014. Infiltration and planting pits for improved water management and maize yield in semi-arid Zimbabwe. Agricultural Water Management. 141: 30-46. DOI: org/10.1016/j.agwat.2014.04.010
  5. Nyakudya IW, Stroosnijder L. 2011. Water management options based on rainfall analysis for rainfed maize (Zea mays L.) production in Rushinga district, Zimbabwe. Agricultural Water Management 98 (10): 1649-1659. DOI: org/10.1016/j.agwat.2011.06.002
  6. Manatsa D, Nyakudya IW, Mukwada G, Matsikwa H. 2011. Maize yield forecasting for Zimbabwe farming sectors using satellite rainfall estimates.  Natural Hazards 55: 447-463. DOI:10.1007/s11069-011-9765-0
  7. Nyakudya IW, Jimu L, Muripira V, Chikuvire TJ. 2012. A comparative analysis of yield performance of maize (Zea mays L.) under different tillage methods in Musana Communal Area, Zimbabwe. Journal of Agricultural Biotechnology and Sustainable Development 4 (4): 45-49. DOI: 10.5897/JABSD09.042
  8. Nyakudya IW, Jimu L, Katsvanga CAT, Dafana M. 2011. Comparative analysis of the early growth performance of indigenous Acacia species in revegetating Trojan Nickel Mine tailings in Zimbabwe. African Journal of Environmental Science & Technology 5 (3): 218 -227. DOI: 10.5897/AJEST09.231 
  9. Kundhlande A, Nyakudya IW, Katsvanga CAT, Wuta M, Jimu L, Gotosa J. 2012. Influence of Pinus patula (Schltdl. & Cham.) plantations on dolerite soil properties in the Eastern Highlands of Zimbabwe: Case of Erin Forest Estate. International Journal of Applied Environmental Sciences 7 (1): 9-24
  10. Nyakudya IW, Jimu L, Marashe M, Katsvanga CAT. 2010. Comparative growth and yield response of rape (Brasssica napus L.) to different soil fertility management amendments. Electronic Journal of Environmental, Agricultural and Food chemistry 9(1): 207-214.
  11. Foti R, Nyakudya IW, Moyo M, Chikuvire TJ, Mlambo N.  2007. Determinants of farmer demand for “fee-for-service” extension in Zimbabwe’s agricultural sector–the case of Mashonaland Central province. Journal of International Agricultural and Extension Education 14 (1): 95-104. DOI: 10.5191/jiaee.2007.14108
  12. Mutenje MJ, Nyakudya IW, Katsinde C, Chikuvire TJ. 2007. Sustainable income generating projects for HIV-affected households in Zimbabwe: Evidence from two high density suburbs.  African Journal of AIDS Research 6 (1): 9-15. DOI: org/10.2989/16085900709490394
  13. Nyakudya IW, Mureva VJ, Mutenje M, Moyo M, Chikuvire TJ, Foti R. 2006. Hidden overburden of female-headed households in guar bean production: Zimbabwean experience. Journal of International Women’s Studies 8 (1): 168-175. 
  14. Kanda A, Nyakudya IW, Katsvanga CAT, Mupangwa JF, Gotosa J.  2006. Heavy metal concentrations in pavement sediments in the mining town of Bindura, Zimbabwe. Journal of Applied Science and Environmental Management 10 (4): 57-61.
  15. Mulizane M, Katsvanga CAT, Nyakudya IW, Mupangwa JF. 2005. The growth performance of exotic and indigenous tree species in rehabilitating active mine talings dump at Shamva mine in Zimbabwe. Journal of Applied Science and Environmental Management Volume 9 (2): 57-59.
  16. Sebata A, Ngongoni NT, Mupangwa JF, Nyakudya IW, Dube J.S. 2005. Chemical composition and degradation characteristics of puncture vine. Tribulus terrestris.  Journal of Tropical and Subtropical Agroecosystems   5: 85-89.
  17. Chimvuramahwe J, Musara JP, Mujuru L, Gadzirayi CT, Nyakudya IW, Jimu L, Katsvanga CAT, Mupangwa JF, Chivheya R. 2011. Effect of feeding graded levels of Adansonia digitata (baobab) seed cake on the performance of broilers. Journal of Animal and Plant Sciences, 11(3): 1442-1449.
  18. Kundhlande A, Nyakudya IW, Katsvanga CAT, Wuta M,  Gotosa J. 2011. Influence of Pinus patula (Schltdl. & Cham.) plantations on granite soil properties in the Eastern Highlands of Zimbabwe: A case study of Erin Forest Estate. Journal of Horticulture and Forestry, 2(10).
  19. Nyakudya IW, Jimu L, Marashe M, Katsvanga CAT. 2010. Comparative growth and yield response of rape (Brasssica napus L.) to different soil fertility management amendments. Electronic Journal of Environmental, Agricultural and Food Chemistry, 9(1): 207-214.
  20. Foti R, Nyakudya IW, Moyo M, Chikuvire TJ, Mlambo N.  2007. Determinants of farmer demand for “fee-for-service” extension in Zimbabwe’s agricultural sector–the case of Mashonaland Central province. Journal of International Agricultural and Extension Education, 14(1): 95-104.
  21. Mutenje MJ, Nyakudya IW, Katsinde C, Chikuvire TJ. 2007. Sustainable income generating projects for HIV-affected households in Zimbabwe: Evidence from two high density suburbs.  African Journal of AIDS Research. 6(1): 9-15.
  22. Nyakudya IW, Murewa VJ, Mutenje M, Moyo M, Chikuvire TJ, Foti R. 2006. Hidden overburden of female-headed households in guar bean production: Zimbabwean experience. Journal of International Women’s Studies, 8 (1): 168-175.
  23. Kanda A, Nyakudya IW, Katsvanga CAT, Mupangwa JF, Gotosa J.  2006. Heavy metal concentrations in pavement sediments in the mining town of Bindura, Zimbabwe. Journal of Applied Science and Environmental Management, 10 (4): 57-61.
  24. Mulizane M, Katsvanga CAT, Nyakudya IW, Mupangwa JF. 2005. The growth performance of exotic and indigenous tree species in rehabilitating active mine talings dump at Shamva mine in Zimbabwe. Journal of Applied Science and Environmental Management, 9 (2): 57-59.
  25. Sebata A, Ngongoni NT, Mupangwa JF, Nyakudya IW, Dube JS. 2005. Chemical composition and degradation characteristics of puncture vine. Tribulus terrestris. Journal of Tropical and Subtropical Agroecosystems, 5: 85-89.
  26. Sebata A, Ngongoni NT, Mupangwa JF, Nyakudya IW, Imbaryarwo-Chikosi VE. & Dube JS. 2005. Effects of supplementing native pasture hay with puncture vine (Tribulus terrestris) on the intake, weight change, nitrogen balance and excretion of purine derivatives of sheep. Tropical and Subtropical Agroecosystems, 5: 123 – 128.