Leaves turning yellow
- Thread starter P3D1977
- Start date
SilentGreen21
Member
If they are turning yellow from top to down. Could be Magnesium and Potassium deficiency. Pictures definitely would help.
kinddiesel
Well-Known Member
it could be normal too . lot of leaves do turn yellow in late flower If every thing is done correctly . send us a few pics
Greenthumbntraining
Member
When ur plants are almst done flowering leaves will turn yellow
Here are the pictures , i gave them cal/mag and P/K 13,14, they are growing under 600w hps, also soil grow(inside)
my ph is around 6-6.5
peace
pictures are in this thread, have a look and tell me what you think my next step, cheers
Silentgreen21 has it on the money.
6-6.5 is to much of a variable. watering should be constant at 6.5, any lower you will be locking out P, Ca, and Mg.
straight flush at ph of 6.5 will correct it but your to far into flowering you might do more harm flushing this late. just keep your ph at 6.5 with food and at plain water too.
you will be fine.
hydrogreen65
Well-Known Member
Agree, that's why I like the nutes I use. They have enough nitrogen in the flower nutes to keep the plants from turning yellow. Yellow leaves produce no energy.
skunkd0c
Well-Known Member
they look ok, the leaves that are yellow look more crispy from burning from food or heat
but overall they look fine
if i was you i would pick off all those dead leaves, it will make it easer for you to see if it is happening
to any of the new growth,
if you have got them to this stage with only a few weeks to go do not do anything drastic you are almost there
recheck possible food and heat issues
peace
but overall they look fine
if i was you i would pick off all those dead leaves, it will make it easer for you to see if it is happening
to any of the new growth,
if you have got them to this stage with only a few weeks to go do not do anything drastic you are almost there
recheck possible food and heat issues
peace
dannyboy602
Well-Known Member
I think its normal to see leaves turning late into flowering. it tells me that harvest is near. don't sweat it.
SilentGreen21
Member
You, are ok man. They look good over all. Few leaves here and there turning yellow is normal. Don't try to change anything drastically now that you are so far into flower.
bullwinkle60
Well-Known Member
At this stage of the grow I wouldn't worry about some fucking yellow leaves, It's the bud you should cioncern yourself with.
MightyMike530
Well-Known Member
Looks like you burned some leaves and have an N deficiency in others. I think you took a wrong turn when you added the P,K.
MightyMike530
Well-Known Member
Where do you think bud growth comes from? I have always heard the leaves grow the buds, is that not true?
Greenthumbntraining
Member
Not water leaves
Nizza
Well-Known Member
the burn symptoms are most likely due to the ratio of nutes being used having an excess of PK and an absence of N, which is why you see a burn at the top and a deficiency at the bottom, along with random other stuff.
this can be avoided by leeching the soil once a month
or by having a nutrient in a different NPK range, something like 3-1-2, 6-2-4, or 9-3-6.
using something that is in this range allows you to have more control over salinity because it is more evenly uptook. A method i do is give the plants enough water so there is runoff. Each watering i do a maintenance feed which comes in 3's or 4's.
1st watering being strongest, then i step down to half, then to quarter
sometimes ill go full strength twice, but the point is that when i step down on the nutrient dosage, i'm controlling the salinity more in the medium because it is constantly being leeched out, little by little.
salt excess will give you a lot of different problems but looking at your plants they look great! good job letting them go and keeping up with the feedings
this can be avoided by leeching the soil once a month
or by having a nutrient in a different NPK range, something like 3-1-2, 6-2-4, or 9-3-6.
using something that is in this range allows you to have more control over salinity because it is more evenly uptook. A method i do is give the plants enough water so there is runoff. Each watering i do a maintenance feed which comes in 3's or 4's.
1st watering being strongest, then i step down to half, then to quarter
sometimes ill go full strength twice, but the point is that when i step down on the nutrient dosage, i'm controlling the salinity more in the medium because it is constantly being leeched out, little by little.
salt excess will give you a lot of different problems but looking at your plants they look great! good job letting them go and keeping up with the feedings