Journal of Innovative Agriculture, Volume 9, Issue 4 : 1-9. Doi : 10.37446/jinagri/rsa/9.4.2022.1-9
Research Article

OPEN ACCESS | Published on : 31-Dec-2022

Effect of farmland trees Terminalia brownie and Vitex doniana on soil physicochemical properties and maize yield

  • Belayneh Lemage
  • Southern Agricultural Research Institute, Jinka Agricultural Research Center, P.O. Box 96 Jinka, Ethiopia
  • Yenesew Anmaw
  • Southern Agricultural Research Institute, Jinka Agricultural Research Center, P.O. Box 96 Jinka, Ethiopia.


This study was focused on evaluating maize yield and soil fertility improvement under the canopy of retained farmland tree species, particularly Terminalia brownie and Vitex doniana in parkland Agroforestry. The study area was suitable for maize cropping and mature tree species exist in the area. The result showed that Maize yield decreased the understory of studied tee species compared with open field due to the shading effect on crop performance. On the other hand, soil fertility parameters near tree trunk/under canopy cover showed improvement in terms of soil pH level, total nitrogen, phosphorus, and organic carbon obtained except available potassium. Terminalia brownie and Vitex doniana farmland trees supply quantified amounts of important nutrients through the addition of organic biomass and modifying microclimate for ease of decomposition, so resource poor farmers had shortage to replenishing the soils with mineral fertilizer application. The present study concluded that multipurpose agroforestry trees have the potential to improved soil fertility in farming system and these could be promoted in smallholder farms by using appropriate above ground management options.


agroforestry, canopy cover, farmland trees, maize, soil fertility, Terminalia brownie, soil physicochemical


  • Asfaw, Z. (2004). Tree species diversity, topsoil conditions and arbuscular mycorrhizal association in the Sidama traditional agroforestry land use, Southern Ethiopia.

    Asfaw, Z., & Ågren, G. I. (2007). Farmers’ local knowledge and topsoil properties of agroforestry practices in Sidama, Southern Ethiopia. Agroforestry Systems71(1), 35-48.

    Aweto, A. O., & Dikinya, O. (2003). The beneficial effects of two tree species on soil properties in a semi-arid savanna rangeland in Botswana. Land Contamination and Reclamation, 11(3), 339-344.

    Bayala, J., Teklehaimanot, Z., & Ouedraogo, S. J. (2002). Millet production under pruned tree crowns in a parkland system in Burkina Faso. Agroforestry systems, 54(3), 203-214.

    Boffa, J. M. (2000). West African agroforestry parklands: keys to conservation and sustainable management. Unasylva (English ed.), 51(200), 11-17.

    Hailu, T., Negash, L., & Olsson, M. (2000). Millettia ferruginea from southern Ethiopia: Impacts on soil fertility and growth of maize. Agroforestry Systems, 48(1), 9-24.

    ICRAF, (2009). Creating an evergreen Agriculture in Africa for food security and environmental resilience, World Agroforestry Centre, Nairobi, Kenya, pp 24.

    Jiregna, G. (1998). Decomposition and Nutrient release from leaves of croton macrostachyus and Milletia ferruginea for soil improvement in agroforestry system. Msc thesis, Skinnskatteberg, ISSN 1402-201X.

    Kater, L. J. M., Kante, S., & Budelman, A. (1992). Karité (Vitellaria paradoxa) and néré (Parkia biglobosa) associated with crops in South Mali. Agroforestry systems, 18(2), 89-105.

    Kessler, J. J. (1992). The influence of karité (Vitellaria paradoxa) and néré (Parkia biglobosa) trees on sorghum production in Burkina Faso. Agroforestry systems, 17(2), 97-118.

    Kindeya, G. (2004). Dry Land Agro forestry Strategy for Ethiopia, Mekele University Paper Presented at the Dry Lands Agro forestry Work Shop 1st-3rd. ICRAF Head Quarters, Nairobi.

    Konare, H., Yost, R. S., Doumbia, M., McCarty, G. W., Jarju, A., & Kablan, R. (2010). Loss on ignition: measuring soil organic carbon in soils of the Sahel, West Africa. African Journal of Agricultural Research, 5(22), 3088-3095.

    Sanchez, F. G. (2001). Loblolly pine needle decomposition and nutrient dynamics as affected by irrigation, fertilization, and substrate quality. Forest Ecology and Management, 152(1-3), 85-96.

    Scherr, S. J. (1991). On-farm research: the challenges of agroforestry. Agroforestry Systems, 15(2), 95-110.

    Sileshi, G., Akinnifesi, F. K., Ajayi, O. C., & Place, F. (2009). Evidence for the impact of green fertilizers on maize production in sub-Saharan Africa: a meta-analysis. ICRAF Occasional Paper, 10.

    Su, Y., Zhao, H., Li, Y., & Cui, J. (2004). Carbon mineralization potential in soils of different habitats in the semiarid Horqin sandy land: a laboratory experiment. Arid Land Research and Management, 18(1), 39-50.

    Gole, T. W., Borsch, T., Denich, M., & Teketay, D. (2008). Floristic composition and environmental factors characterizing coffee forests in southwest Ethiopia. Forest Ecology and Management, 255(7), 2138-2150.

    Young, A. (1999). Agroforestry for soil management (No. Ed. 2). CAB International. 320p.