AgWeb posted an interesting story from Bloomberg Businessweek on the history of agriculture in California which explains why they grow so much alfalfa there, even though it is a very water-intensive crop. Milk is the #1 agricultural commodity produced in California, edging out almonds and grapes. Much of it is consumed in-state, but quite a bit is exported to other states as well. The alfalfa is the most nutritious, highest protein feed for the dairy cattle and stores well. You can read the story with the title above here.
