VICKSBURG, AZ - Like a desert mirage, the Almarai hay farm about 100 miles west of the Valley sprawls out on almost 10,000 acres. Buildings rise from the dust, and an endless stream of delivery trucks come and go. The bustle of activity is from alfalfa feeds as far as the eye can see. Saudi Arabian state-run media reports Almarai bought the land last year. That was after a Saudi government directive to conserve that nation's natural resources. Experts say underground reservoirs and ancient aquifers have almost dried up in Saudi Arabia after decades of modern farming. And since Almarai...