Hydroponic farming, a method of growing plants in nutrient-rich water, is highlighted as a solution to increasing crop production due to the loss of arable land from construction. This method uses less water and space, and can increase yield. However, it may not be suitable for root crops. The CEO of Ridol Hydroponics, Mr. Richard Twum-Barimah Agyapong, notes that while the initial setup can be expensive, it can be made more affordable for smallholder farmers by incorporating local materials. The technology could also attract young people to agriculture.