Soil physical properties and maize productivity under different tillage methods in the Central Highlands of Kenya

Tabitha Nekesa, Anne Nyambura Karuma, Solomon Kamau, Claire Nasike Akello, Charles K.K Gachene

Abstract


Background. Inappropriate tillage methods are one of the leading causes of land degradation which threatens food security in most sub-Saharan countries, especially given that most agriculture is rain-fed. Thus, production approaches to address this challenge need to be holistic, not only to improve crop production but also to enhance soil health and conserve water sustainably. Objective. To evaluate the effects of different tillage methods on soil properties and thus the impact on crop performance using maize as the test crop. Methodology. The study was done at the Upper Kabete Campus, University of Nairobi, during the 2021 long and short rainy seasons. The soils at the study site are Humic Nitisols. The trial used a Randomized Complete Block Design (RCBD) with four replicates and four treatments: Disc Ploughing and Harrowing (DPH), Ripping (R), Jab Planting (JP), and Hand-Hoeing (HH). Soil physical properties and crop performance indicators were monitored throughout the seasons. Results. Results indicated that tillage significantly (p<0.05) influenced soil moisture and grain yields in both seasons. Average moisture levels (%) were 46.91 (R)>31.41 (DPH)>29.60 (JP)>29.55 (HH) during long-rains and 41.59 (R)>28.38 (JP)>28.32 (HH)>26.95 (DPH) during short-rains. Soil surface roughness was significantly affected by tillage during SR, with average values (%) of 3.11 (HH), 2.96 (DPH), 2.13 (R), and 1.68 (JP). Crust strength trends were consistent across seasons, JP>R>DPH>HH, and values ranged from 0.5 to 2.8 MPa. Bulk density (Mg m⁻³) during SR averaged 1.11 (JP)>1.03 (HH)>1.02 (R)>0.97 (DPH), with tillage significantly influencing the values. Porosity, inversely related to bulk density, average values (%) were 63.45(DPH)>61.61 (R)>61.31 (HH)>58.11 (JP)) in SR. Tillage did not significantly affect saturated hydraulic conductivity. Tillage also had no significant effects on maize height, leaf area, leaf area index, and biomass yields. Average grain yield (Mg/ha) trends during long-rains were 5.69 (R)>5.32 (DPH)>4.19 (JP)>3.96 (HH), and during short-rains, 12.73 (R)>10.04 (DPH)>9.78 (HH)>8.73 (JP). Implications. The findings of this study establish that minimum tillage can improve soil quality and crop production. Conclusion. Ripping yielded the most positive effects on soil properties and crop yields and is recommended for sustainable soil management and maize productivity in the Central Highlands of Kenya and similar agroecological zones.

Keywords


soil health; water conservation; conservation agriculture; crop productivity; small-scale farming

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References


Abagandura, G., Nasr, G. and Moumen, N., 2017. Influence of Tillage Practices on Soil Physical Properties and Growth and Yield of Maize in Jabal al Akhdar, Libya. Open Journal of Soil Science, 07, pp.118–132. https://doi.org/10.4236/ojss.2017.77010

Adimassu, Z., Alemu, G. and Tamene, L., 2019. Effects of tillage and crop residue management on runoff, soil loss and crop yield in the Humid Highlands of Ethiopia. Agricultural Systems, [online] 168, pp.11–18. https://doi.org/10.1016/j.agsy.2018.10.007

Alam, M.K., Islam, M.M., Salahin, N. and Hasanuzzaman, M., 2014. Effect of tillage practices on soil properties and crop productivity in wheat-mungbean-rice cropping system under subtropical climatic conditions. The Scientific World Journal, 2014, p.437283. https://doi.org/10.1155/2014/437283

Bekele, B., Habtemariam, T. and Gemi, Y., 2022. Evaluation of Conservation Tillage Methods for Soil Moisture Conservation and Maize Grain Yield in Low Moisture Areas of SNNPR, Ethiopia. Water Conservation Science and Engineering, [online] 7(2), pp.119–130. https://doi.org/10.1007/s41101-022-00129-0

Bell, M.A. and Fischer, R.A., 1994. Guide to plant and crop sampling: measurements and observations for agronomic and physiological research in small grain cereals. [online] CIMMYT. Available at: [Accessed 4 May 2023]

Birch, I., 2018. Agricultural Productivity in Kenya: Barriers and Opportunities. [online] Available at: [Accessed 4 May 2023]

Black, C.A., 1995. Methods of Soil Analysis: Part I Physical and mineralogical properties. [online] American Society of Agronomy, Madison, Wisconsin, USA. Available at: [Accessed 4 May 2023]

Blake, G.R. and Hartge, K.H., 1986. Bulk density. In: Klute, A., Ed., Methods of Soil Analysis, Part 1—Physical and Mineralogical Methods, 2nd Edition, Agronomy Monograph 9, American Society of Agronomy—Soil Science Society of America, Madison, pp.363-382.

Buah, S.S.J., Ibrahim, H., Derigubah, M., Kuzie, M., Segtaa, J.V., Bayala, J., Zougmore, R. and Ouedraogo, M., 2017. Tillage and fertilizer effect on maize and soybean yields in the Guinea savanna zone of Ghana. Agriculture & Food Security, [online] 6(1), p.17. https://doi.org/10.1186/s40066-017-0094-8

Cairns, J.E., Chamberlin, J., Rutsaert, P., Voss, R.C., Ndhlela, T. and Magorokosho, C., 2021. Challenges for sustainable maize production of smallholder farmers in sub-Saharan Africa. Journal of Cereal Science, [online] 101, p.103274. https://doi.org/10.1016/j.jcs.2021.103274

Chichongue, O., van Tol, J., Ceronio, G. and Du Preez, C., 2020. Effects of Tillage Systems and Cropping Patterns on Soil Physical Properties in Mozambique. Agriculture, [online] 10(10), p.448. https://doi.org/10.3390/agriculture10100448

FAO, 2021. Strengthening resilience to safeguard agricultural livelihoods. [online] Food and Agriculture Organization of the United Nations. Available at: [Accessed 10 March 2025]

FAOSTAT, 2019. FAOSTAT (Food and Agriculture Organization Corporate Statistical Database. [online] Available at: [Accessed 5 May 2023]

Gachene, C.K.K., Mbuvi, J.P., Jarvis, N.J. and Linner, H., 1997. Soil Erosion Effects on Soil Properties in a Highland Area of Central Kenya. Soil Science Society of America Journal, [online] 61(2), pp.559–564. https://doi.org/10.2136/sssaj1997.03615995006100020027x

Gashu, D., Demment, M.W. and Stoecker, B.J., 2019. Challenges and opportunities to the African agriculture and food systems. African Journal of Food, Agriculture, Nutrition and Development, [online] 19(1), pp.14190–14217. https://doi.org/10.18697/ajfand.84.BLFB2000

Geological Society of America (GSA), 2014. Geology of the Nairobi region. [online] Geological Society of America. https://doi.org/10.1130/2014.DMCH016

Hatfield, J.L. and Prueger, J.H., 1996. Microclimate effects of crop residues on biological processes. Theoretical and Applied Climatology, [online] 54, pp.47–59. https://doi.org/10.1007/BF00863558

Jaetzold, R., Schmidt, H., Hornetz, B. and Shisanya, C., 2007. Farm management handbook of Kenya: Volume II: Natural conditions and farm management information; Part B Central Kenya; Subpart B2: Central province. Verlag nicht ermittelbar

Kang’ethe, E., Mutua, F., Roesel, K. and Grace, D., 2020. Food safety landscape analysis: The maize value chain in Kenya. [online] Available at: [Accessed 10 July 2024]

Karuku, G., Gachene, C., Karanja, N., Cornelis, W., Verplancke, H. and Kironchi, G., 2012. Soil hydraulic properties of a Nitisol in Kabete, Kenya. Tropical and Subtropical Agroecosystems, 15, pp.595–609. http://dx.doi.org/10.56369/tsaes.1024

Karuma, A., Gachene, C., Gicheru, P., Mtakwa, P.W. and Amuri, N., 2016. Effects of tillage and cropping systems on maize and beans yield and selected yield components in a semi-arid area of Kenya. Tropical and Subtropical Agroecosystems, 19, pp.167–179. http://dx.doi.org/10.56369/tsaes.2183

Karuma, A., Mtakwa, P., Amuri, N., Gachene, C.K. and Gicheru, P., 2014. Tillage Effects on Selected Soil Physical Properties in a Maize-Bean Intercropping System in Mwala District, Kenya. International Scholarly Research Notices, 2014, p.497205. https://doi.org/10.1155/2014/497205

Kebede, M., 2019. Effect of Inter and Intra Row Spacing on Growth, Yield Components and Yield of Hybrid Maize (Zea mays L.) Varieties at Haramaya, Eastern Ethiopia. American Journal of Plant Sciences, 10, pp.1548–1564. https://doi.org/10.4236/ajps.2019.109110

Khan, A., 2019. Tillage and Crop Production. In: M. Hasanuzzaman, ed. Agronomic Crops: Volume 1: Production Technologies. [online] Singapore: Springer. pp.115–129. https://doi.org/10.1007/978-981-32-9151-5_7

Kipkulei, H., Kimura, S., Lana, M., Ghazaryan, G., Baatz, R., Boitt, M., Chisanga, C., Rotich, B. and Sieber, S., 2022. Assessment of Maize Yield Response to Agricultural Management Strategies Using the DSSAT–CERES-Maize Model in Trans Nzoia County in Kenya. International Journal of Plant Production. https://doi.org/10.1007/s42106-022-00220-5

Klute, A. and Dirksen, C., 1986. Hydraulic conductivity and diffusivity. Laboratory methods. In: Methods of soil analysis - part 1. Physical and mineralogical methods. [online] SSSA. pp.687–734. https://doi.org/10.2136/sssabookser5.1.2ed.c28

Kuipers, H., 1957. A reliefmeter for soil cultivation studies. Netherlands Journal of Agricultural Science, [online] 5(4), pp.255–262. https://doi.org/10.18174/njas.v5i4.17727

Kumar, P., Lata, S., Sinha, A. and Singh, D., 2022. Effect of Tillage and Mulching on Growth, Yield and Economics of Maize Crops. International Journal of Bio-resource and Stress Management, [online] 13(4), pp.332–338. https://doi.org/10.23910/1.2022.2362a

Lampurlanés Castel, J. and Cantero-Martínez, C., 2003. Soil Bulk Density and Penetration Resistance Under Different Tillage and Crop Management Systems and Their Relationship With Barley Root Growth. Agronomy Journal, 95, pp.526-536. https://doi.org/10.2134/agronj2003.0526

Liu, Z., Cao, S., Sun, Z., Wang, H., Qu, S., Lei, N., He, J. and Dong, Q., 2021. Tillage effects on soil properties and crop yield after land reclamation. Scientific Reports, [online] 11, p.4611. https://doi.org/10.1038/s41598-021-84191-z

Marenya, P., Wanyama, R., Mamo, S. and Woyengo, W., 2022. Building Resilient Maize Production Systems With Stress-Adapted Varieties: Farmers’ Priorities in Western Kenya. Frontiers in Sustainable Food Systems, 6, p.702405. https://doi.org/10.3389/fsufs.2022.702405

Mas-Ud, M., Seidu, A. and Dokurugu, F., 2024. Effects of Tillage Practices on the Growth and Yield of Maize, in the Guinea Savannah Ecological Zone of Ghana. International Journal for Research in Applied Science and Engineering Technology, 12, pp.1320-1326. https://doi.org/10.22214/ijraset.2024.58034

Mateo-Marín, N., Bosch-Serra, À., Molina, M. and Poch, R., 2021. Impacts of tillage and nutrient management on soil porosity trends in dryland agriculture. European Journal of Soil Science, 73, p.e13139. https://doi.org/10.1111/ejss.13139

Miriti, M., Kironchi, G., Esilaba, A.O., Gachene, C.K.K., Heng, L.K. and Mwangi, D.M., 2013. The effects of tillage systems on soil physical properties and water conservation in a sandy loam soil in Eastern Kenya. Journal of Soil Science and Environmental Management, [online] 4(7), pp.146–154. https://doi.org/10.5897/JSSEM2013.0395

MoALFC (Ministry of Agriculture, Livestock, Fisheries and Cooperatives), 2021. Kenya County Climate Risk Profile: Kiambu County. [Report] Available at: [Accessed 6 May 2023]

Muigai, D., Onwonga, R., Karuku, G. and Mohammed, A., 2021. Evaluating maize performance under varying water depletion levels in Bura irrigation scheme, Kenya. International Journal of Agricultural Research, 18, pp.19–29.

Munialo, S., Dahlin, S., Onyango, C., Kosura, W., Marstorp, H. and Oborn, I., 2019. Soil and management?related factors contributing to maize yield gaps in western Kenya. Food and Energy Security, 9, p.e189. https://doi.org/10.1002/fes3.189

Musa, U.T. and Usman, T.H., 2016. Leaf area determination for maize (Zea mays L), okra (Abelmoschus esculentus L) and cowpea (Vigna unguiculata L) crops using linear measurements. Journal of Biology, Agriculture and Healthcare, 6(4), pp.103-111.

Mwendwa, S., 2021. Detailed Soil Survey and Spatial Variability of Selected Soil Properties in Upper Kabete Campus Field, University of Nairobi, Kenya. [Thesis] University of Nairobi. Available at: [Accessed 4 May 2023].

Nebo, G.I., Manyevere, A., Araya, T. and van Tol, J., 2020. Short-Term Impact of Conservation Agriculture on Soil Strength and Saturated Hydraulic Conductivity in the South African Semiarid Areas. Agriculture, [online] 10(9), p.414. https://doi.org/10.3390/agriculture10090414

Nyambo, P., Chiduza, C. and Araya, T., 2022. Effect of conservation agriculture on selected soil physical properties on a haplic cambisol in Alice, Eastern Cape, South Africa. Archives of Agronomy and Soil Science, [online] 68(2), pp.195–208. https://doi.org/10.1080/03650340.2020.1828578

Okalebo, J.R., Gathua, K.W. and Woomer, P.L., 2002. Laboratory Methods of Soil and Plant Analysis: A Working Manual. 2nd. Ed. Nairobi:TSBF-CIAT and SACRED, Africa.

Omondi, J.O., 2013. Tillage and Variety effects on Soil Moisture Content, Biological Nitrogen fixation and Soybean (Glycine Max L. Merril) Yield on Western Kenya. [Thesis] Egerton University. Available at: [Accessed 8 May 2023]

Otieno, H., Chemining’wa, G., Gachene, C. and Zingore, S., 2019. Economics of Maize and Bean Production: Why Farmers need to Shift to Conservation Agriculture for Sustainable Production. Turkish Journal of Agriculture - Food Science and Technology, 7, p.1548. https://doi.org/10.24925/turjaf.v7i10.1548-1553.2566

Otieno, H., Zingore, S., Chemining’wa, G. and Gachene, C., 2020. Maize (Zea mays L.) Growth and Yield Response to Tillage Methods and Fertilizer Combinations in the Midland Agro-ecological Zones of Kenya. Turkish Journal of Agriculture - Food Science and Technology, 8, p.616. https://doi.org/10.24925/turjaf.v8i3.616-624.3097

da Rocha Junior, P.R., Bhattarai, R., Alves Fernandes, R.B., Kalita, P.K. and Vaz Andrade, F., 2016. Soil surface roughness under tillage practices and its consequences for water and sediment losses. Journal of Soil Science and Plant Nutrition, [online] 16(4), pp.1065–1074. https://doi.org/10.4067/S0718-95162016005000078

Rusu, T., Moraru, P., Ranta, O., DROCAS, I., Bogdan, I., Pop, A.I. and SOPTEREAN, M., 2011. No-Tillage and Minimum Tillage – their Impact on Soil Compaction, Water Dynamics, Soil Temperature and Production on Wheat, Maize and Soybean Crop. Bulletin UASVM Agriculture, 68, pp.318–323. https://doi.org/10.15835/buasvmcn-agr:6460

Sakho-Jimbira, S. and Hathie, I., 2020. The future of agriculture in Sub-Saharan Africa. Southern Voice. Policy Brief No. 2. [online] Available at:

Sombroek, W.G., Braun, H.M.H. and Pouw, B.J.A. van der, 1982. Exploratory soil map and agro-climatic zone map of Kenya, 1980. Exploratory Report - Kenya Soil Survey (Kenya). [online] Available at: https://library.wur.nl/WebQuery/edepot/399397 [Accessed 4 May 2023]

Tandzi, L. and Mutengwa, C., 2019. Estimation of Maize (Zea mays L.) Yield Per Harvest Area: Appropriate Methods. Agronomy, 10, p.29. https://doi.org/10.3390/agronomy10010029

Templer, N., Lelei, J.J. and Onwonga, R., 2017. Soil Available Nutrients, pH and Yield Variation in Legume - Maize Systems Utilizing Two Phosphorus Sources in Kabete Kenya. International Journal of Research in Agricultural Sciences, 4, pp.2348–3997.

Zapata, D., Rajan, N., Mowrer, J., Casey, K., Schnell, R. and Hons, F., 2021. Long-term tillage effect on with-in season variations in soil conditions and respiration from dryland winter wheat and soybean cropping systems. Scientific Reports, [online] 11(1), p.2344. https://doi.org/10.1038/s41598-021-80979-1

Zhao, L., Liang, X. and Wu, F., 2014. Soil surface roughness change and its effect on runoff and erosion on the Loess Plateau of China. Journal of Arid Land, 6, pp.400-409. https://doi.org/10.1007/s40333-013-0246-z

Zirimwabagabo, C., Rudahaba, N., Cubaka, K., Rudahaba, N., Birindwa, B., Mukotanyi, S. and Bashagaluke, J., 2022. Impact of Tillage and Phosphorus Application on Agronomic Efficiency of Maize (Zea mays L.) in the Eastern Part of DRC. Journal of Experimental Agriculture International, 44, pp. 35-50. https://doi.org/10.9734/JEAI/2022/v44i930847




URN: http://www.revista.ccba.uady.mx/urn:ISSN:1870-0462-tsaes.v28i3.62799

DOI: http://dx.doi.org/10.56369/tsaes.6279

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