Full Member
Grace Mafaune
Membership since:
2025
Field of activity:
Other Memberships/Affiliations
Soil Science Society of Zimbabwe
Degrees:
2014
Master Agricultural Sciences
This study therefore enabled evaluation of the efficacy of combined application of basal phosphorus - containing fertilizers and locally available organic nutrient sources on productivity of nitrogen fixing grain legumes and maize in rotational systems on smallholder farms. A profitability analyses was also done to assess economic returns, while sensitivity analyses were conducted to determine the optimal fertilization strategy under legume-cereal cropping sequences.
It was concluded that low P status of soils coupled with non-application of external nutrients accounts for the low yields of < 0.5 t ha-1 in smallholder farming areas. Fertilization of legumes with both organic and P-containing inorganic nutrient resources could substantially increase grain productivity; amounts of nitrogen fixed by legumes together with rotational cereal yield benefits and associated financial returns.
2004
Undergraduate Agricultural Sciences
A field and laboratory experiment was conducted, to assess carbon and nitrogen mineralization patterns, after soybean - maize intercropping.
Publications resulting from Research
1. G. Kanonge, G. Manzeke, R. Chikowo, F. Mtambanengwe and P. Mapfumo (2011). Fertilization of legume – maize sequences for improved productivity under variable rainfall conditions on resource poor farms in Eastern Zimbabwe. CIALCA Conference Abstracts. No 60, pp 84.
2. G. Kanonge Mafaune, T. Gwandu and L. Matarirano. (2012). Coppicing tree legumes intercropped with maize for improved crop productivity and weed management on a clay soil in north-eastern Zimbabwe. Paper presented at the ISFM Africa conference.
3. G. Kanonge, H. Nezomba, R. Chikowo, F. Mtambanengwe and P. Mapfumo (2015). Assessing the potential of organic and mineral fertilizer combinations on legume productivity under smallholder management in Zimbabwe, South African Journal of Plant and Soil, DOI: 10.1080/02571862.2015.1053156
4. M. S. Chiduwa, A. Tumbure, Dube. M and G. Kanonge-Mafaune (2016). Quantifying benefits of rhizobia inoculation on neglected grain and pasture legume crops in Zimbabwe. Poster paper presented at the 17thAABNF Biennial Conference.
5. G. Kanonge-Mafaune, M.S. Chiduwa, E. Chikwari & C. Pisa (2018). Evaluating the effect of increased rates of rhizobial inoculation on grain legume productivity. Symbiosis Journal DOI: 10.1007/s13199-018-0550-7
2. G. Kanonge Mafaune, T. Gwandu and L. Matarirano. (2012). Coppicing tree legumes intercropped with maize for improved crop productivity and weed management on a clay soil in north-eastern Zimbabwe. Paper presented at the ISFM Africa conference.
3. G. Kanonge, H. Nezomba, R. Chikowo, F. Mtambanengwe and P. Mapfumo (2015). Assessing the potential of organic and mineral fertilizer combinations on legume productivity under smallholder management in Zimbabwe, South African Journal of Plant and Soil, DOI: 10.1080/02571862.2015.1053156
4. M. S. Chiduwa, A. Tumbure, Dube. M and G. Kanonge-Mafaune (2016). Quantifying benefits of rhizobia inoculation on neglected grain and pasture legume crops in Zimbabwe. Poster paper presented at the 17thAABNF Biennial Conference.
5. G. Kanonge-Mafaune, M.S. Chiduwa, E. Chikwari & C. Pisa (2018). Evaluating the effect of increased rates of rhizobial inoculation on grain legume productivity. Symbiosis Journal DOI: 10.1007/s13199-018-0550-7
17thAABNF Biennial Conference
2025
Botswana17thAABNF Biennial Conference
2025
BotswanaISFM Africa conference
2025
KenyaCIALCA Conference
2025
RwandaAfrican Crop Science Conference
2025
South Africa17th AABNF Biennial Conference. Solutions for food security in Africa through sustainable soil fertility management of ecosystems under climate change.
2025
Gaborone, BotswanaIAEA Training Fellowship in Isotopic applications in Nitrogen Use Efficiency and Biological Nitrogen Fixation Studies
2025
Accra, GhanaIntegrated Soil Fertility Management in Africa: From Microbes to Markets: ISFM Africa International Conference
2025
Nairobi, KenyaChallenges and Opportunities for Agricultural Intensification of the Humid Highland Systems of sub-Saharan Africa: CIALCA International Conference
2025
RwandaThe 9th African Crop Science Society Conference
2025
South AfricaSADC Regional Training Course on Soil and Water Conservation Techniques Under Drought Conditions
2025
Zambia