The aim of this trial was to assess any damage to the top four leaves of the wheat crop canopy (as a percentage of leaf area affected [LAA]) seven days after treatment application at second node (GS32) and booting (GS43) stages with different forms of nitrogen. The specific objectives were to:
• assess the phytotoxicity (scorch) of liquid Easy N versus solid urea at GS32 and GS43
• compare the impact of applying liquid Easy N through streaming nozzles and flat fan spray jets
• assess the impact of co-applying emulsifiable concentrate (EC) or suspension concentrate (SC) formulations of foliar fungicides with liquid Easy N
• examine the influence of water rate on scorch at both application timings.

• In a low-yielding (3–4 t/ha) wheat trial (cv Trojan) affected by transient waterlogging, applying liquid- nitrogen (N), in the form of Easy N®, through flat fan jets was slightly more damaging than streaming jets in terms of phytotoxicity to the key upper leaves, though this was not significant.
• The level of damage was exacerbated when the liquid fertiliser was mixed with fungicides; particularly when applied at booting (GS43). 
• The amount of phytotoxicity measured when a fungicide was added depended on the formulation and the angle and leaf layer of the canopy leaf exposed to the spray. 
• An emulsifiable concentrate (EC) formulation of fungicide generated twice the level of damage to that observed with suspension concentrate (SC) formulations.
• There were small differences between SC formulations of fungicides but in the main these were non-significant. Adding extra water reduced leaf scorch, but the effect was small relative to other differences observed. 
• Similar effects were seen when an adjuvant was added to the SC formulation. The variable nature of the yield results did not allow significant comment to be made on yield data.