1. Regional Context & Agricultural Challenge

In the low-lying beel basins of Tungipara, Kotalipara, and southern Gopalganj, agricultural land remains submerged under 4 to 8 feet of monsoon water for five to six months every year, making conventional soil farming impossible.

2. Technical Implementation & BARI Protocol Applied

Generations of Bangladeshi farmers pioneered ‘Dhap’ (or Baira)—the world’s oldest community-scale organic hydroponics. Farmers weave buoyant rafts (up to 50 feet long) from invasive water hyacinth (Kachuripana), paddy straw, and aquatic weeds. Seeds are pre-germinated inside small round balls (‘Tema’) made of coir dust and aquatic peat before being transplanted onto the floating beds.

3. Harvest Results, Economic Impact & Grower Outcome

Recognized by the Food and Agriculture Organization (FAO) of the United Nations as a Globally Important Agricultural Heritage System (GIAHS), Gopalganj’s floating gardens empower over 25,000 wetland families to harvest three to four cycles of chemical-free vegetables during peak floods, before breaking down the decomposed beds as rich organic compost for winter crops.