Lime should only be applied after a soil test ? but your PH was good so I don’t think that had any effectsI read after the fact that you should wait about 6-8 weeks after putting anything down to take a soil sample. I had a lime mixture put down on Oct 21st so that could explain some of the spikes.
 
	 
 
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		