Abstract ▼ AI-Helper

Sargassum horneri is a seaweed belonging to the order Fucales of the
Phaeophyceae, and it inhabits the coasts of Korea, Japan, and China. In 2015,
a large-scale damage caused by drifting seaweed was reported for the first time
in Korea. However, there are currently no solutions to elimin...

Sargassum horneri is a seaweed belonging to the order Fucales of the
Phaeophyceae, and it inhabits the coasts of Korea, Japan, and China. In 2015,
a large-scale damage caused by drifting seaweed was reported for the first time
in Korea. However, there are currently no solutions to eliminate Sargassum
horneri biomass. In this study, the soil physicochemical properties and soil
microbiome were analyzed to verify the potential of Sargassum horneri biomass
as a fertilizer. The Soybean was cultured using Sargassum horneri treated soil
to identify the proper ratio of Sargassum horneri biomass and soil. In addition,
biomethane production of Sargassum horneri biomass was observed through the BMP
test. The result of the soil physicochemical properties analysis was suggested
the cation exchange capacity which indicating the fertility of the soil,
increased in proportion to the amount of Sargassum horneri biomass. Through the
soil microbiome analysis, the fungus Candida subhashii and the bacterium
Priestia aryabhattai was shown the high relative abundance in the Sargassum
horneri treated soil, and it was presumed to be related to the degradation of
the biomass. As a result of the soybean cultivation experiment, it was observed
that the soybean biomass was the best in the 4% treated soil, and the growth
of soybeans was inhibited in the 8% treated soil due to the high Arsenic
concentration. Accumulated volume methane of Sargassum horneri was measured
similar to the cellulose used as a positive control.