1. Cook, A., Ljung, K. & Watkins, R. Human health and the state of the pedosphere. In Encyclopedia of Environmental Health 2nd edn (ed. Jerome, N.) 546–553 (Elsevier, 2011).
2. Lal, R. Restoring soil quality to mitigate soil degradation. Sustainability. 7(5), 5875–5895. https://doi.org/10.3390/su7055875 (2015).
3. FAO, IFAD, UNICEF, WFP and WHO. 2022. The State of Food Security and Nutrition in the World 2022. Repurposing food and agricultural policies to make healthy diets more affordable. Rome, FAO.
4. Bot, A., & Benites, J. The importance of soil organic matter. Key to drought-resistant soil and sustained food production. Food and Agriculture Organization of the United Nations, Rome, 2005, https://www.fao.org/3/a0100e/a0100e.pdf. Accessed 14 February 2024.
5. Martin, T. M. P. Comparative study of environmental impacts related to wheat production with human-urine based fertilizers versus mineral fertilizers. J Cleaner Prod. 382, 135123. https://doi.org/10.1016/j.jclepro.2022.135123 (2023).