Sharing Bluepine Test here in case it is useful to someone.
It is only a demo, but the notes on the page may help if you are planning a similar experiment.
According to the Lâm Đồng Department of Agriculture and Environment, the salt production area is nearly 560 hectares concentrated mainly in Vĩnh Hảo, Phan Rí Cửa, and Tân Thành, among others.