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oai:figshare.com:article/34054536 2026-10-02T05:36:10Z category_34 portal_316 item_type_3 month_year_10_2026

Table 1_Anthroponics: nutrients recovery from human urine and their reuse as fertiliser to grow spearmint (Mentha spicata L.).docx Ibrahim El Saliby (2092570) Juan Lucas (25162566) Sherub Phuntsho (2092564) Ho Kyong Shon (2092561) Environmental Science anthroponics circular spearmint urine derived fertiliser urval <p>In this study, we investigated the use of Urval fertiliser, a fertiliser produced by a nutrient recovery process from human urine, to grow spearmint. Urine contains about 0.8–2 g/L of phosphorus (P) and about 3–7 g/L of nitrogen (N) which are excreted by humans in addition to other nutrients and is therefore a good resource for nutrient recovery. A total of thirty spearmint plants were employed in this study to check the effect of fertiliser type (Urval/U; Ca-Mg Grower/CM) and potting media (Vermiculite/V; Coco chips/C; Peat and Perlite/PP) on plant height, branching and biomass. CMV consistently produced the greatest increase in plant height, indicating a more balanced nutrient supply. CMPP and CMC also enhanced plant height relative to UV, UC, and UPP. A similar pattern was observed for stalk production, with CMV generating the highest number of stalks, followed by CMPP and CMC, aligning closely with the observed height responses and reinforcing the better performance of the commercial fertiliser across multiple growth parameters. Notably, UV resulted in higher stalk numbers than UC and UPP, indicating that vermiculite is a more suitable growth medium for Urval application. Biomass data showed that CMV produced larger spearmint plants followed by CMPP and CMC, while UV performed best among Urval treatments followed by UC and UPP.</p> 2026-10-02T05:36:10Z Dataset Dataset 10.3389/fenvs.2026.1872561.s001 https://figshare.com/articles/dataset/Table_1_Anthroponics_nutrients_recovery_from_human_urine_and_their_reuse_as_fertiliser_to_grow_spearmint_Mentha_spicata_L_docx/34054536 CC BY 4.0