At first glance I have found no acceptable explanation for why to change direction of tillage on a 4 hectares inclusion parcell within a large block of agricultural unit.
Probably some anti-erosion experiment as being situated on a bank-slope of an ancient waterflow. - Check GE tilted view by elevation exaggeration level 2-3:
Preventing erosion on agricultural lands with surface gradient above 12%, tillage direction is recommended to be perpendicular to the slope direction. (As per applicable agricultural regulations in Hungary.)