Save the Blue Dream- Need help pa pa please

[strangeflavor]

Take a gander at these photos of my blue dream ( 2 gallon pots), chem dawg (3 gallon pot) and sour diesel (3 gallon pots) . I am at a day 34 since transplant and day 14 of the flowering cycle. I have yellow dots, curled under tips that are brown and crispy and necrotic spots. I am using soil less sunshine mix number 4 and organic nutrients- Buddha Grow -10ml Buddha Bloom 15 ml, half cap of maxicrop liquid seaweed and 1 teaspoon of Earth Juice. I have been checking the ph of runoff water and found that the Blue Dream has consistently had between 5.75 and 5.98 ph. The yellow spots appeared on the 27th and I fed the plants on the 24th so it might be nutrient burn ????? The average temperature is 75 with a low of 65 and high of 81. The humidity is around 30-40 % when the light is on and 50-70% when the light is off. I have a 150 cfm inline fan taking air out and two 12'' computer fans bringing air in. I have been giving them water and nutrients at 6.10 to 6.40 ph. I can not figure out if I am dealing with deficiencies from lockouts, or nutrient burn or heat stress. The room has great ventilation and the temperature stays in the 70's when the light is on and off it goes into the mid 60's. The ph level of runoff between the three strains vary but here is a little break down.
Water/Nutrient solution ph going in = 6.26
runoff Sour Diesel = 6.43 ph
runoff Sour Diesel= 6.34 ph- this plant is a foot shorter then the other sour d
runoff Chem Dawg= 5.98ph, 6.00ph
runoff blue dream= 5.76ph
runoff blue dream= 5.84
I flushed the blue dream that had the most progressive problems and left the other alone because it looked healthier The ph of the flushed runoff was significantly higher then the usual runoff @ 6.30 ph. I hope this is enough information- i made a post with sweet pics about a month ago and no one commented, so lets get someone who knows some things to help a closet gardener out ! I filled out the question sheet on the last post and can copy and paste it if that helps with more information.

 

[jim_browsky]

What have you tried in the last month, since your last post?
What is you water source?
From those pics, it looks like a calcium/iron deficiency. You
can get both of those from a good quality blackstrapp molasses,
or you can buy some MagiCal or cal-mag.
This could be caused by too much K or not properly draining your
soil or soil pH too low(acidic) or just not feeding them enough.

 

[jim_browsky]

Why did you pick all of those leaves off the plant in the first pic?
I just let them be until they are all yellow and fall off or are very easily removed.

 

[strangeflavor]

Since the last post I have been feeding the plants about every three days Roots Organic with 10 ml of Buddha grow (2–0.5–0.25) 15 ml Buddha bloom 0.5–2–1.5, a half cup of maxi crop liquid seaweed and a teaspoon of Earth Juice for the Micronutrients- all mixed in with 1 gallon of water.
Our water source is the hose and in my profile there is a water chart from our area. We have highly alkaline water so I have been using ph down to achieve the proper ph level in the water.
I have been fallowing roots organic feeding schedule and watering in between the three day feedings.
Am i not feeding them enough or not watering them enough ? I am not sure what you mean by not draining them properly- when I water them or feed them I always check the ph of the runnoff and have been keeping charts. The blue dream runoff is always below 6 and most of the time below 5.8.

And I guess i freaked out when I saw all the yellow dots on the blue dream and cut the worst ones off- you are right I should of just left them until they fall off but this is my first grow so the mistakes are adding up quickly. Thank you for responding to the post. One last question, the cut off leaves are not nutrient burnt ?

I am going to get some cal mag and add that to the equation.

 

[Owl Mirror]

cutting leaves off the plant doesn't make the problem go away
just because it's now out of your sight ;>}

I guess i freaked out when I saw all the yellow dots on the blue dream

Try sitting alone in your flower room, looking at this and not cutting them off ;>}

 

[jim_browsky]

In a soilless medium like peat, I find it best to feed them 2 out of
3 waterings. I am not familiar with Buddha nutes, but feeding
them every three days with 25mL/gallon of nutes and then more
additives on top of that seems like overkill. You are most likely
locking out some of the calcium and magnesium by feeding them
too much K or your nute mix is not pH'ed properly.
With Promix(which is similar) I feed a normal feeder at the most only
15mL/gallon of nutes and 5mL/gallon Cal-mag pH'ed to around
6.0-6.5, I would much rather underfeed and correct the problem
later rather than trying to fix a lockout or overfert problem from
overfeeding. I start them at around 4mL/gal of Cal-mag and 8mL/gal PBP grow.
-Jim


The leaves you cut off look like the beginning of Ca deficiency(on
the edge of leaves) and full on Ca deficiency(where it has started
spotting).

By draining them I'm talking about drying them out between
watering.

 

[jim_browsky]

cutting leaves off the plant doesn't make the problem go away
just because it's now out of your sight ;>}



Try sitting alone in your flower room, looking at this and not cutting them off ;>}

Are you the next Andy Goldsworthy? That's some nice art man.

 

[strangeflavor]

thanks for the info jim. I will heed your advice in regard to the amount of nutrients and am going to get some cal mag. I will post some more pictures in a few days and well see if I can get a turn around on these deficiencies.

 

[Owl Mirror]

Are you the next Andy Goldsworthy? That's some nice art man.

LOL looks like he has more time on his hands than I do ;>}

 

[Moldy Dreads]

This could be caused by too much K or not properly draining your
soil or soil pH too low(acidic) or just not feeding them enough.

Looks like the roots were a bit overwatered for a few days. That causes nutrient lockout too..just let them dry out a but, what you have is quite common..shouldn't hurt harvest specially if only on lower , older leaves etc..

 

[jim_browsky]

Check out his documentary, Rivers and Tides. It's amazing (and heart wrenching) to watch him work.

 

[strangeflavor]

Jim B
You said you like to feed them 2 out of 3 waterings. How many times a week do you water? 3 or does it vary? It seems like I was giving them to much water and giving them to much nutrients every 3 days. I wanted to give you the NPK for the roots organic buddha- as fallows- buddha grow is 2-.5-1.5 and the bloom is .5-2-1.5. Right now I am blending the two for the first few weeks of flowering, then it switches to just bloom. 25 ml per gallon of these every three days could cause to much K and lead to the dead edges and curling tips ? I also got some cal mag but I am waiting till the soilless has dried out much more then I have been letting it. Thanks for the help.

-noob

 

[strangeflavor]

Also how does one go about checking the radiant heat in the room ?

 

[jim_browsky]

Depending on their overall size, how long they have been in a
particular size pot, room temp, etc.- I normally water two times a
week. Maybe three towards the last few weeks of flowering when
they're real thirsty. Sometimes once a week when first
transplanted or while in veg. The best way to tell is to pick up
your pot and feel how heavy it is. When it feels mostly dry or just
a little weight around the bottom of the container, then water. The
point about feeding them is it's better to give them smaller
amounts of nutes and increase if they tell you to. Same with
watering, water them less, more often. My plants in 3L pots drink
750mL of water in two days.

As far as the N-P-K-Mg-Ca values read this. You plug your
numbers in the calculator then add them up, it's really self
explanatory. So for me using 2/3 RO and 1/3 tap water with PBP
for flowering I use:
18mL/gal PBP Bloom(soil)
5mL/gal PBP Bloom(hydro)
5mL/gal MagiCal
to come up with the N-P-K-Mg-Ca values of:
N-123
P-108
K-252
Mg-54
Ca-109
I use this exact mix for ebb and flow, with my water this produces
and EC of around 1.6. For soil 1.6 is too high, do not feed them
that much every feeding only half of the amounts, then the third
time just straight water. pH the nute mix to around 6.0-6.5. Hope
this helps. And yes, too much potassium can start locking out
other nutrients. And by radiant heat, you mean what exactly?

 

[strangeflavor]

Truthfully I just asked about radiant heat because I read some post about people having trouble with their radiant heat. Is it the heat that comes directly off the bulb to the plants and not the total air temperature ? If its not an issue then disregard that question. Thanks again for the information, much obliged.

 

[strangeflavor]

Also may I as what 2/3 RO is ?

 

[jim_browsky]

Reverse Osmosis.
Yeah, the radiant heat from bulbs sucks. You could measure it with a
thermometer at canopy level. That's how I check temp in my room,
that and my reservoirs have thermometers in a couple of them too.