sentences:  In Bangladesh, farmers in the southwestern region cultivate vegetables on "floating gardens" usually with a bamboo-built frame base, with dried mass of water hyacinth covered in soil as bedding.As a large portion of cultivable land goes under water for months during monsoon in this low-lying region, farmers have grown this method for many decades now.The method of this agriculture is known by many names including "dhap chash" and "vasoman chash".