New perennial grain crops at Lönnstorp Research Station
Annual cereal crops such as wheat, barley and rye have been cultivated for thousands of years for food and animal feed. They must be sown each growing season, often involving soil tillage, which can increase the risk of soil erosion and associated nutrient losses. To help reduce these impacts, researchers have worked for several decades to develop perennial grain crops through plant breeding and the domestication of wild species. Once established, these crops can produce grain for several consecutive years without needing to be resown.