Annual change and temporal change of fertilizer component in rooftop garden thin substratum light soil
Takanori Kuronuma, Saori Hashimoto, Ryuta CHIMURA, Haruaki YOKOKAWA, Kazunori Sakamoto, Hitoshi Watanabe
Journal of the Japanese Society of Revegetation Technology
Urban Farm DB summary
This study investigated the annual changes in lightweight soil in a thin substratum rooftop garden planted with Zoysia grass. No annual changes were observed in grass growth or soil physical properties. Soil organic matter tended to increase after construction, and nutrient salt content was comparable to golf course green soil diagnostic standards. However, nutrient salt levels in unused lightweight soil were significantly higher than after construction and decreased annually. No difference in nutrient salt content was confirmed with or without additional fertilization, suggesting the need for fertilization management tailored to the unique rooftop environment.