According to DAP News:

A tractor plowing land for planting crops runs over a landmine and explodes; one person dead and another person seriously injured.

Battambang:
At least one person died and another was seriously injured when their tractor, plowing land for planting cassava, ran over a landmine. This incident happened at 9:10AM on January 1 2016.

According to the local authorities: the dead person, who was driving the tractor, was identified as Hov Vit(សៅ វិត), 28years old, male.
The seriously injured person was identified as Sun Saen (ស៊ុន សែន), male, 27years old.
The tractor was completely destroyed.

Read more here.