Spraying crops with compost tea could help give plants a natural defence against disease, resulting in lower costs and pushing up long-term yields by up to 27%. Duchy Originals Future Farming Programme is trialling compost teas on two organic farms and one conventional arable unit across England. Compost tea is made by mixing dry compost with non-chlorinated water, which is aerated in a large vat to multiply the micro-organisms. Liz Bowles, the Soil Association’s head of farming, is managing the […]