Nature & Environment
What is aquaponics - and how can fish poo help feed the world?
...systems), and the system is even more water efficient than hydroponics, producing two products using the same water. Fish food is the only major input required, and it’s easier to use bio-controls against pests compared to soil-based agriculture. Fun at the farm BBC presenter Kate Humble now runs the Humble by Nature teaching farm on a hill above the Wye valley in...