Effects of Human Urine on Growth and Yield Parameters of Tomato (Solanum Lycopersicum) In Sumbrungu in the Upper East Region of Ghana: Implications for Sustainable Agriculture
DOI:
https://doi.org/10.53555/jaz.v46i1.5147Keywords:
Fertilizer, sustainable, tomato, utilization, urine, vegetablesAbstract
Purpose: With implications for sustainable agricultural practices, this study sought to determine how human urine, applied as fertilizer, affected the growth and production parameters of tomato (Solanum lycopersicum) in Sumbrungu, Ghana.
Design/Methodology/Approach: Three different urine dilutions (1:3, 1:5, and 1:10 with water) plus a control group (no urine) made up the Completely Randomized Design (CRD) utilized in the experiment. Until they bore fruits, tomato seedlings were raised in poly bags and given weekly treatments. Growth parameter measurements were made every two weeks, and soil samples were also collected.
Findings: The effects of urine fertilization on tomato output, blooming time, and growth were substantial. The plants with the highest average number of leaves (91.33), largest leaf area (6.77 mm²), thickest stems (1.00 mm), and most fruits (6.67) were produced by the 1:3 dilutions, whilst the tallest plants (60.67 cm) were created by the 1:5 dilutions. Nonetheless, the 1:3 treatments had a higher frequency of fruit decaying. Six weeks after transplanting, the 1:3 treatments were the first to flower, followed by the 1:5 treatments after seven weeks. No flowering was seen in the control group.
Research Limitation/Implication: The research was restricted to one growth season and one place. In order to optimize dilution ratios for various soil types, evaluate long-term effects on soil health, and address potential issues regarding pollutants in human urine, more research is required.
Practical Implication: The results imply that human urine can be a useful fertilizer for tomato farming in Ghana when it is appropriately diluted. It seems that the ideal dilution ratios fall between 1:3 and 1:5, striking a balance between promoting fruit quality and growth.
Social Implication: This study advances sustainable farming methods in underdeveloped nations by maybe providing an affordable substitute for chemical fertilizers. For widespread adoption, however, implementation may encounter logistical issues and cultural impediments that must be resolved.
Originality: The significance of this study rests in its ability to guide Ghana and comparable regions towards more sustainable farming methods, so promoting food security, resource conservation, and economic development in ways that are both locally and globally relevant.
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References
1. Addo, A., & Lee, S. (2020). Cultural perceptions and adoption of urine-based fertilizers in Ghana. Journal of Agricultural Sociology, 35(2), 78-92.
2. Addo, A., Mensah, K., & Johnson, T. (2020). Challenges facing smallholder farmers in Ghana: A comprehensive review. African Journal of Agricultural Research, 15(3), 456-470.
3. Amoah, R., & Mensah, K. (2022). Variability in crop response to urine fertilization: Implications for research design. Journal of Sustainable Agriculture, 47(4), 301-315.
4. Amoah, R., Owusu-Ansah, E., & Kugblenu, Y. (2021). Logistical challenges in implementing urine-based fertilization systems in Ghana. International Journal of Agricultural Sustainability, 19(3), 215-229.
5. Anderson, L., & Thompson, R. (2020). Optimal dilution ratios of human urine for maize cultivation in semi-arid regions. Agronomy Journal, 112(4), 1876-1889.
6. Brown, A., & Lee, M. (2018). Human urine as a sustainable fertilizer: A review of nutrient composition and agricultural applications. Advances in Agronomy, 140, 47-89.
7. Brown, A., Wilson, J., & Clark, S. (2020). Leaf area expansion and photosynthetic capacity in urine-fertilized crops. Journal of Plant Physiology, 246, 153-167.
8. Garcia-Lopez, M., Smith, J., & Brown, A. (2021). Circular economy approaches in agriculture: The case for nutrient recycling. Sustainability, 13(7), 3728.
9. Garcia, R., & Patel, S. (2021). Effects of human urine fertilization on growth and yield of bell peppers. HortScience, 56(5), 612-619.
10. Henderson, L., & Clark, T. (2020). Yield improvements in vegetable crops fertilized with human urine: A meta-analysis. Journal of Horticultural Science, 95(3), 284-297.
11. Henderson, L., & Patel, S. (2021). Assessing the presence of pharmaceutical residues in urine-based fertilizers: Implications for food safety. Environmental Science & Technology, 55(11), 7245-7256.
12. Kugblenu, Y., Oppong-Danso, E., & Ofori, K. (2018). Tomato production in Ghana: Current practices and future prospects. Ghana Journal of Agricultural Science, 52, 105-117.
13. Kugblenu, Y., Amoah, R., & Mensah, K. (2019). Optimizing urine dilution ratios for tomato cultivation in Ghana. Journal of Crop Improvement, 33(6), 755-769.
14. Li, X., Zhang, R., & Pang, Y. (2019). Nutrient uptake efficiency in crops fertilized with diluted human urine. Plant and Soil, 434(1), 139-152.
15. Nguyen, T., & Lee, S. (2022). Leaf expansion and nutrient content in soybean plants treated with urine-based fertilizers. Journal of Plant Nutrition, 45(8), 1156-1170.
16. Nguyen, T., Lee, S., & Kim, J. (2018). Human urine as a nitrogen fertilizer: A comprehensive review of its potential and limitations. Journal of Cleaner Production, 185, 770-785.
17. Owusu-Ansah, E., & Mensah, K. (2022). Overcoming cultural barriers to urine fertilization adoption in Ghana: A participatory approach. Rural Sociology, 87(3), 623-642.
18. Owusu-Ansah, E., Amoah, R., & Kugblenu, Y. (2021). The role of potassium in fruit development: Insights from urine fertilization studies. Journal of Plant Nutrition and Soil Science, 184(3), 356-368.
19. Rodriguez, M., & Kim, J. (2019). Optimizing urine fertilization for improved tomato growth and yield. HortTechnology, 29(3), 295-303.
20. Smith, J., & Johnson, T. (2019). Sustainable agriculture in the 21st century: Challenges and opportunities. Annual Review of Environment and Resources, 44, 281-308.
21. Taylor, A., Brown, B., & Garcia, R. (2020). Long-term effects of urine fertilization on soil health: A review. Soil Biology and Biochemistry, 141, 107692.
22. Taylor, A., Garcia, R., & Lee, M. (2021). Stem characteristics and vascular development in urine-fertilized crops. Journal of Experimental Botany, 72(9), 3456-3470.
23. Thompson, R. (2017). Historical perspectives on the use of human waste in agriculture. Agricultural History, 91(2), 241-257.
24. Thompson, R., Anderson, L., & Wilson, J. (2021). Soil acidification and microbial community changes following long-term urine fertilization. Applied Soil Ecology, 158, 103793.
25. United Nations. (2015). Transforming our world: The 2030 Agenda for Sustainable Development. Retrieved from https://sustainabledevelopment.un.org/post2015/transformingourworld
26. Wilson, J., & Clark, S. (2016). Human urine as a crop fertilizer: A review of the evidence. Journal of Agricultural and Food Chemistry, 64(18), 3439-3453.
27. Wilson, J., Clark, S., & Brown, A. (2018). Nitrogen dynamics in urine-fertilized agricultural systems. Nutrient Cycling in Agroecosystems, 110(3), 505-520.
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