DAVIS, Calif. -- The University of California Cooperative Extension has unveiled new studies analyzing production costs for olive oil, peaches, onions, almonds, sunflowers and lettuce.

Each analysis is based on hypothetical farm operations and uses input from farm advisers, researchers, growers, accountants and other experts, according to a UC news release.

Tables show a range of profits based on prices and yields, the costs and returns per acre, hourly equipment costs and other data.

The studies can be viewed online at http://coststudies.ucdavis.edu or can be obtained at Cooperative Extension offices or by calling 530-752-6887.

— Tim Hearden