The pilot had earlier landed in the paddock which was adjacent to the homestead to seek assistance regarding a broken down vehicle being used in the spraying task. Prior to commencing the takeoff run the pilot did not inspect the proposed takeoff path. Initially the aircraft takeoff run acceleration was more sluggish than normal, due to the traversing of patches of soft wet ground. Acceleration improved. However, the aircraft was approaching some trees so the pilot turned it to provide a greater ground roll distance. The aircraft became airborne for a short time, but then touched down in long wet grass which degraded its acceleration. It then hit a fence and nosed over.
