Tropical Punch (Deer Food)

These girls are coming along good. They are starting with the same problem as the God Bud. Yellow leaves at the bottom, but burnt tips from trying to boost the nitrogen. Next week im gonna add the nirvana bud boost. Some of my nutes were left in the truck of my car all summer, would that have made them go bad? I wonder if they would be the cause of the yellow leaves.. it was shortly after I started using the old food. Im gonna go buy some fresh nutes and try that..