Annual grains feed the world, but they create problems. Perennials are thrifty. Their long roots hold on to soil, water, and fertilizer, which means less pollution. Humans made an unwitting... Read more
Image by neilalderney123 via Flickr It has pretty much become a given that grain crops, such as wheat and barley, need to be started from scratch every spring. This means farmers must buy se... Read more