25/08/23 Indoor grown salad, micro-greens, broad bean harvest

Which is better - roots deep in the earth or in a nutrient cocktail on a vertical farm? We hear about the biology of how salad crops are grown without using soil. As part of our week focusing on salad, we visit a micro-farm growing micro-greens. It's harvest time for broad beans, but one grower calls them “the forgotten vegetable”. Presented by Caz Graham and produced by Beatrice Fenton.