yellowing leaves and little blots

[manu323]

My plants have yellowing leaves from the bottom to a little
bit to the middle, and some blots prob' nute burn at leaves
more at the top.
I just can't seem to find the right dosage for my fertilizer or something,
when i gave my plants the recommended dosage several leaves curled
and dried up.Now i'm giving them less then the recommended dosage
bit it still doesn't seem right.
Can anyone help me or have any idea?
Fertilizer is Bio-bloom and topmax from bio-bizz.
I have three females 4 weeks into flowering.

Thanks in advance

 

[The_Duhcider]

pics would be helpful, or at least more descriptive terms, ie color of spots, are they fuzzy? Etc...

 

[jash]

you have to start with 1/4 of prescript dose and increase gradualy,im using also biobizz products and i killed a plant wich was planted in heavy prefert soil,you should remember that even if organic and their ratio seems light they can burn your plants if not attend with dose. post some pics if possible

 

[manu323]

here are some pics, but you don't see the yellow leaves and spots.
I'll continue giving them a quarter of recommended dose.
http://www.marijuanapassion.com/forum/showthread.php?t=17502

i don't know if the yellow leaves need more or less fertilizer.

 

[jash]

whats your soil ratio?the plant i burned was planted in fresh-unflushed soil 16/18/20 and she was doing very well till started using nutes at 1/2 strength at beging of preflowering,if yellowing continues with 1/4 maybe your soil is heavy prefert and you should cut nutes at all and wait to see what happens