As far as I know, it's the first time that the "Royal Plowing Ceremony" is held in Siem Reap province. It has been always celebrated on the terrace in front of National Museum called "Veal Mén" in Phnom Penh. The event attracted hundreds of thousands locals and tourists who almost flooded Angkor Thom. The event is held on the 0205010.
Even the king's car needed to take another route to enter Angkor Thom as its main gate was flooded by both local and international visitor who try to entered Angkor Thom to witness the event.