Need help identifying deficiencies

[Bmoney]

I have 2 photo blueberry plants 4 weeks flower and im starting to worry about my bud production they are pretty small at this point compared to the other strains in this room starting to see yellowing at the bottom of the plant and not many trichomes at the top im growing in a foxfarm OF mixed with some pit moss amended with chicken poop (slow release nitrogen and fox farm 555 ive been giving compost and nutrient teas every week

 

[Pbass]

Looks like nute burn to me on those tips? I'm just a neophyte, but maybe just some water for a few feedings? CHeers mate, GL!

 

[Bmoney]

Yea i thought so too but then i started yellowing idk if thats a nute burn problem or a ph problem i generally keep my ph between 6.0-6.5

 

[Bmoney]

More photos of the yellowing ita starting at the bottom and its only a few leaves at a time i pull them off and the next day its a couple more i water once a week with nutrient and compost tea and i amended with fox farm dry amendment and i also added in some fishbone meal to a few plants

 

[Bmoney]

And for one of my blueberrys the buds look a little underdeveloped this is 4 weeks into flower does anyone think these are revegging

 

[Bmoney]

And for one of my blueberrys the buds look a little underdeveloped this is 4 weeks into flower does anyone think these are revegging