Enhancing growth and yield of sweet potato (Ipomoea batatas L.) through fertilizer supplementation strategies

Paper Details

Research Paper 08/05/2025
Views (71) Download (3)
current_issue_feature_image
publication_file

Enhancing growth and yield of sweet potato (Ipomoea batatas L.) through fertilizer supplementation strategies

Catherine N. Payadon, Artemio A. Martin Jr.
Int. J. Agron. Agri. Res.26( 5), 83-98, May 2025.
Certificate: IJAAR 2025 [Generate Certificate]

Abstract

Organic fertilizers in sweet potato cultivation enhance soil fertility, boost crop productivity, and ensure food security, especially in staple potato-producing regions. Organic sweet potatoes have improved nutritional profiles, addressing malnutrition and supporting SDG 3: Good Health and Well-being. Additionally, organic inputs reduce reliance on synthetic chemicals, aligning with SDG 12: Responsible Consumption and Production and SDG 13: Climate Action. This study evaluates various organic fertilizer sources on the growth, yield, and quality of three sweet potato varieties—Bintong, Bengueta, and Okinawan. A split-plot design was used, with variety as the main plot and six fertilizer treatments as subplots: full NPK, reduced NPK, and reduced NPK supplemented with vermichar, vermicompost, biochar, and Black Soldier Fly (BSF) frass. Results revealed that Bengueta exhibited the highest computed yield (15.43 t/ha), though differences among varieties were not statistically significant. Among fertilizer treatments, BSF frass combined with reduced NPK significantly produced the highest yield (15.94 t/ha), followed by vermicompost (15.67 t/ha), highlighting the potential of organic amendments to outperform full synthetic fertilizer in tuber production. Combinations like Bengueta × Biochar and Bintong × Vermichar demonstrated superior performance in yield and Total Soil Stability (TSS). Bengueta is recommended for high-yielding production, while BSF frass and biochar are effective organic inputs for improving yield and quality, with future research validating these findings across various environments.

Abayomi YA, Ajibola AT, Fashogbon AE. 2022. Influence of fertilizer sources on vegetative growth and root yield of sweet potato varieties. International Journal of Plant & Soil Science 34(5), 24–33. https://doi.org/10.9734/ijpss/2022/v34i530899

Adekiya AO, Adebiyi OV, Ibaba AL, Aremu C, Ajibade RO. 2022. Effects of wood biochar and potassium fertilizer on soil properties, growth and yield of sweet potato (Ipomoea batata). Heliyon 8(11).

Bayuelo-Jiménez JS, Ochoa-Cadavid I. 2014. Phosphorus acquisition and internal utilization efficiency among maize landraces from the central Mexican highlands. Field Crops Research 156, 123–134.

Boru M, Kebede WT, Tana T. 2017. Effects of application of farmyard manure and inorganic phosphorus on tuberous root yield and yield related traits of sweet potato [Ipomoea batatas (L.) Lam] at Assosa, Western Ethiopia. Advances in Crop Science and Technology 20.

Brewer CE, Chuang VJ, Masiello CA, Gonnermann H, Gao X, Dugan B. 2014. New approaches to measuring biochar density and porosity. Biomass Bioenergy 66, 176–185.

Domínguez J, Edwards CA. 2011. Relationships between composting and vermicomposting. In: Edwards CA, Arancon NQ, Sherman RL (Eds). Vermiculture Technology: Earthworms, Organic Wastes, and Environmental Management. CRC Press, 11–26.

Duan W, Wang Q, Zhang H, Xie B, Li A, Hou F, Dong S, Wang B, Qin Z, Zhang L. 2018. Differences between nitrogen-tolerant and nitrogen-susceptible sweet potato cultivars in photosynthate distribution and transport under different nitrogen conditions. PLoS One 13(3).

Echer FR, Dominato JC, Creste JE. 2009. Absorção de nutrientes e distribuição da massa fresca/seca entre órgãos de batata-doce. Horticultura Brasileira 27(2), 176–182.

Fan J, McConkey B, Wang H, Janzen H. 2020. Sustainable soil management through improved organic inputs: A review. Agriculture, Ecosystems & Environment 273, 170–180.

Gebre GG, Teshome A, Dechassa N. 2020. Effect of organic and inorganic fertilizers on growth and yield of sweet potato (Ipomoea batatas L.). Heliyon 6(5), e03986. https://doi.org/10.1016/j.heliyon.2020.e03986

Gemenet DC, Hash CT, Sangog MD, Sy O, Zangre RG, Lieser WL, Haussmann BIO. 2015. Phosphorus uptake and utilization efficiency in West African pearl millet inbred lines. Field Crops Research 168, 48–56.

Gurmu F, Hussein S, Laing M. 2018. Genotypic variation and trait association in orange-fleshed sweet potato clones. Journal of Crop Improvement 32(1), 75–92.

Gurmu F, Hussein S, Laing M. 2019. Genotype and environment interaction effects on the growth and yield performance of orange-fleshed sweet potato clones. Agronomy 9(10), 624. https://doi.org/10.3390/agronomy9100624

Hagh ED, Mirshekari B, Ardakani MR, Farahvash F, Rejali F. 2016. Maize biofortification and yield improvement through organic biochemical nutrient management. Idesia 34, 37–46.

Hoque TS, Hasan AK, Hasan MA, Nahar N, Dey DK, Mia S, Solaiman ZM, Kader MA. 2022. Nutrient release from vermicompost under anaerobic conditions in two contrasting soils of Bangladesh and its effect on wetland rice crop. Agriculture 12, 376.

Hřebečková T, Wiesnerová L, Hanč A. 2019. Changes of enzymatic activity during a large-scale vermicomposting process with continuous feeding. Journal of Cleaner Production 239, 118127.

Kimathi B, Nyende AB, Demo P, Ngamau K. 2021. Agronomic and morphological characterization of selected sweet potato genotypes in varied agro-ecological zones. Journal of Agricultural Science 13(2), 102–112.

Kimathi B, Nyende AB, Demo P, Ngamau K. 2021. Agronomic performance of selected sweet potato genotypes under varied environmental conditions. Journal of Agricultural Science 13(1), 10–18. https://doi.org/10.5539/jas.v13n1p10

Kitagawa Y, Yanai J, Nakao A. 2017. Evaluation of nonexchangeable potassium content of agricultural soils in Japan by the boiling HNO3 extraction method in comparison with exchangeable potassium. Soil Science and Plant Nutrition 64(1), 1–7.

Klammsteiner T, Turan V, Fernández-Delgado Juárez M, Insam H. 2020. Suitability of Black Soldier Fly Frass as soil amendment and implication for organic waste hygienization. Agronomy 10(10), 1578.

Lazcano C, Domínguez J. 2011. The use of vermicompost in sustainable agriculture: Impact on plant growth and soil fertility. In Soil Nutrients, Nova Science Publishers, 1–23.

Lehmann J, Joseph S. 2015. Biochar for Environmental Management: Science, Technology and Implementation. Routledge.

Lirikum KLN, Thyug K, Mozhui L. 2022. Vermicomposting: An eco-friendly approach for waste management and nutrient enhancement. Tropical Ecology 63, 325–337.

Loebenstein G, Thottappilly G. 2023. The Sweetpotato. Springer International Publishing.

Manschadi AM, Kaul HP, Vollman J, Eitzinger J, Wenzel W. 2014. Reprint of Developing phosphorus-efficient crop varieties—an interdisciplinary research framework. Field Crops Research 165, 49–60.

Ning YW, Ma HB, Zhang H, Wang JD, Xu XJ, Zhang YC. 2015. Response of sweet potato in source-sink relationship establishment, expanding, and balance to nitrogen application rates. Acta Agronomica Sinica 41(3), 432–439.

Njoku DN, Ogbonna PE, Edeh HI. 2019. Response of sweet potato (Ipomoea batatas L.) genotypes to organic and inorganic fertilizer application in Southeastern Nigeria. Journal of Crop Improvement 33(4), 527–543.

Ochieng JA, Wamalwa M, Owuoche JO. 2023. Morphological characterization of sweet potato genotypes for vegetative traits. African Journal of Agricultural Research 18(3), 124–132.

Ok YS, Chang SX, Gao B, Chung HJ. 2015. SMART biochar technology—a shifting paradigm towards advanced materials and healthcare research. Environmental Technology & Innovation 4, 206–209.

Ozyazici G, Turan N. 2020. Effect of vermicompost application on mineral nutrient composition of grains of buckwheat (Fagopyrum esculentum M.). Sustainability 13, 6004.

Padhan B, Kumar A. 2021. Comparative effect of organic amendments on soil properties and growth performance of sweet potato. Indian Journal of Agricultural Sciences 91(9), 1423–1427.

Quilliam RS, Glanville HC, Wade SC, Jones DL. 2013. Life in the ‘charosphere’—does biochar in agricultural soil provide a significant habitat for microorganisms? Soil Biology and Biochemistry 65, 287–293.

Ravi V, Chakrabarti SK, Makeshkumar T, Saravanan R. 2014. Molecular regulation of storage root formation and development in sweet potato. Horticultural Reviews 42, 157–208.

Romano N, Webster C, Datta SN, Pande GSJ. 2023. Black Soldier Fly (Hermetia illucens) frass on sweet potato (Ipomea batatas) slip production with aquaponics. Horticulturae 9(10), 1088.

Sandana P, Kalazich J. 2015. Ecophysiological determinants of tuber yield as affected by potato genotype and phosphorus availability. Field Crops Research 180, 21–28.

Singh AB, Deo C, Kumar S, Jain A, Shukla R. 2018. Response of different organic sources on growth and yield of sweet potato (Ipomoea batatas L.) cv. NDSP-65. Journal of Pharmacognosy and Phytochemistry 7(2).

Singh S, Misal NB. 2022. Effect of different levels of organic and inorganic fertilizers on maize (Zea mays L.). Indian Journal of Agricultural Research 56, 562–566.

Sohi S, Wade SC, Kern J. 2017. Consistency of biochar properties over time and production scales: A characterisation of standard materials. Journal of Analytical and Applied Pyrolysis 132, 200–210.

Souffront DKS, Salazar-Amoretti D, Jayachandran K. 2022. Influence of vermicompost tea on secondary metabolite production in tomato crop. Scientia Horticulturae 301, 111135.

Tom S, Richard Q, Aline PP, Eduardo M, Luke B, Jose L, Gomez-Eyles M. 2015. Application of biochar for soil remediation. In: Guo M, He Z, Uchimiya M. (Eds.), Agricultural and Environmental Applications of Biochar: Advances and Barriers 63, 295–324.

Tufa TT, Daba MH, Worku WB. 2023. Evaluation of interaction effects of sweet potato varieties and fertilizer sources on growth and yield components. Agriculture and Food Security 12(1), 45.

Uwah DF, Undie UL, John NM, Ukoha GO. 2013. Growth and yield response of improved sweet potato (Ipomoea batatas (L.) Lam) varieties to different rates of potassium fertilizer in Calabar, Nigeria. Journal of Agricultural Science 5(7), 61–69.

Villordon AQ, Ginzberg I, Firon N. 2014. Root architecture and root and tuber crop productivity. Trends in Plant Science 19(7), 419–425.

Vyas P, Sharma S, Gupta J. 2022. Vermicomposting with microbial amendment: Implications for bioremediation of industrial and agricultural waste. BioTechnologia 103, 203–215.

Workie H, Belay T, Tadesse T. 2020. Growth and yield response of sweet potato (Ipomoea batatas L.) varieties to different organic and inorganic fertilizers. Journal of Plant Nutrition 43(16), 2491–2502.

Zörb C, Senbayram M, Peiter E. 2014. Potassium in agriculture- Status and perspectives. Journal of Plant Physiology 171(9), 656–669.