Wedding Cake [Auto, Barney's, Solo]

Noticed some brown trichomes on a few buds today. There aren't many yet, but I've started to gradually reduce the amount of fertilizers and prepare for soil flushing. This, along with the grassy smell that's been breaking through my filter and filling up the space, reminds me of the upcoming harvest. Not liking the look of the leaves at all. Their brown color and the tendency to curl up suggest some issues. What these problems are, I can't tell, and at this stage, I'm definitely not going to make any radical changes to the growing conditions.