Maha Vajiralongkorn, crown prince of Thailand, attends the Royal Ploughing ceremony at Sanam Luang park in Bangkok, Thailand, on Monday, May 9, 2016. This year may be a better one for Thai rice production. At least, that's what two sacred oxen and a ceremonial lord forecast at an annual ploughing ceremony. Photographer: Dario Pignatelli/Bloomberg via Getty Images