Discussion

Image Citation: (Green Souq UAE, 2024)

The purpose of this study was to analyze the diversity of microbial groups found in the soil of native and non-native soil samples through pH, soil moisture, functional and genetic biodiversity testing, which would allow for the gardeners to understand how the soil impacts the plant's growth. From the experiment, we concluded that the only area in which there was significant statistical differences was within the moisture levels of the native and non-native soil samples. Through prior research, it was determined that both our native and non-native plants require similar pH levels for growth, however, differences in soil moisture content between needed. Our native species, Symphytotrichum-Xera, does best in soil made of sand, clay, and silt, showing slight acidity, with levels between 5.8 - 6.5, and direct sunlight (Secuianu, 2022). While our non-native species, tomatoes, typically thrive in well-drained sites, where the pH is a little acidic, ranging between 6.2 and 6.8. Where excess or diminished nutrient levels as well as inadequate sunlight could disrupt plant growth and limit the abundance of fruit produced (University of New Hampshire, 2021). When visiting the gardens, it was apparent that the native soil was drier, and crumblier, whilst the non-native soil was moist and richer. Otherwise, the soil samples held no significant statistical difference in regard to the functional and genetic biodiversity of the soil. The investigation of how the biodiversity of soil samples from urban gardens differ between native and nonnative species provide helps important information on soil health and functionality (Nielsen et al, 2015). Giving our community gardens the opportunity to implement various strategies to enhance the soil, improving the garden's nutrient levels and overall production to aid food insecurities within the community.