“…Indicators that showed that sustainable agricultural practices improved the environment in which they were practiced were the most cited evidence of practice effectiveness and included water conservation, improved soil fertility, increased soil microbial activity and reduced carbon emissions (e.g. Hu et al , 2019; Manríquez-Altamirano et al , 2020; Sabar and Midya, 2022). For example, Manríquez-Altamirano et al (2020) reported the outcome of an experiment that showed that the solid waste generated by crops grown through urban agriculture, in this case, tomato stems, were very effective organic fertilizers that improved soil fertility as evidenced by the increased yield of lettuce produced by the fertilized soil.…”