Rich in quercetin, shallot (Allium cepa L.) use is beneficial in controlling the COVID-19 pandemic since effective vaccines and pharmacotherapy are still in development. The study aimed to characterize functional groups of shallot tubers planted in the inorganic soil of the seasonal freshwater-wetland (IS-SFW)/Ts-of-RAMSAR-classification ecosystem. The shallot tubers that grew in IS-SFW for 60 days were manually harvested, sun-dried for seven days, and stored for two months before been pressed to produce sample juices. The peaks of wavenumber resulted from FTIR analysis were compared to the infrared database to determine possibly functional groups. The findings showed spectra changed in the fingerprint but not in the mid-IR other regions, indicated the IS-SFW did not affect functional groups beneficial in the COVID-19 treatment. The study concluded that shallot planted in IS-SFW is still beneficial in the COVID-19 treatment.

Planting shallots in lowland is constrained by the attack of plant diseases. Moler is most important diseases in shallots. The study aims to know suppression of moler diseases by ziram fungicide. The study was conducted on three types lands (peatlands, freshwater swamps and top soil) and two treatments (ziram treated and untreated). The results showed that the application of ziram fungicides was able to suppress the attack of moler disease on shallots ranges from 93-100 percent.

Swampland is one of the agroecosystems that has not been optimally utilized, especially in agriculture. This land is included in sub obtimal land in South Sumatera province. This research aims to determine the feasibility of horticulture cultivation efforts with floating methods on swampland. The location of the research was the swampland in Srimulya Village, Sematang Borang District of Palembang City  on inundated season from January to June. This study was conducted by combining interview methods and participatory observation with respondents. The method used in determining economic feasibility was business feasibility analysis using R/C and B/C Ratios. The types of data processed were primary data and secondary data with quantitative type. Based on the results, it can be concluded that  floating cultivation system for kale can add family income to swampland. With the total cost of each harvest being Rp 4.390.000,00 , an acceptance of Rp 14.000.000,00 is obtained. The net income earned every harvest is Rp 9.610.000,00. The Revenue / Cost Ratio is 3.19 while Benefit / Cost Ratio is 2.19. It can be concluded that the floating cultivation system is feasible to be implemented on swampland.