Shrimp heads sweeten the watermelon: 30 years of sandy-soil circular farming on Co To Island
On the outlying island of Co To in Quang Ninh province in northern Vietnam, there is a family that has spent 30 years practicing a method of turning shrimp heads into compost and returning it to the sandy seaside watermelon fields. Reported on July 3, 2026, by Nong nghiep Moi truong, a specialist paper affiliated with Vietnam's Ministry of Agriculture and Environment, the fields draw tourists who visit the island...
