lower leaves are yellow

[growingweedoutside]

How much fertilizer (Biogrow) I should give,
do I need to put fertilizer every time I give water
Thanks

Every week, 7ml to 1L water.

growingweedoutside Reviewed by growingweedoutside on 08-09-2011. lower leaves are yellow Hi I have 2 female in a 7 litter pot, this is an outdoor grow. (see attached pictures) They are about 10 weeks old and I feed them with Bio-grow (biobizz) fertilizer 2ml/litter I notice that lower leaves are yellow I did some reading and came to conclusion that it's maybe nitrogen deficiency so I double the amount of fertilizer to 4ml/litter but had no improvement more leaves are getting yellow. PH is around 7 -6.8 Any idea how resolve this??? Thanks Rating: 5