“Market gardeners on the banks of the River Niger are clearing the river of this invasive plant and 13 market gardening cooperatives are producing compost, fish-meal, biogas and paper,” Krasposy Kujinga, who is based at the Okavango Basin Research Institute, in Botswana, told The Zimbabwean.
“The technique is simple: First they dig a pit and line it with layers of straw, finely chopped water hyacinth and animal manure and repeat this until the pit is full,” he said.