Late flowering deficiency, Mo? P?

C

cage

Well-Known Member
Hi guys,





So this is what we are looking at. @ 7½weeks flowering (barney's lsd)
I've been giving tap water and adjusted the ph before, but when i reached full nutes i thought the ph was fine bit below 7.
So now I took sample from the run-through water and as accurately I can read that color scale i'd say 6.7-7 ph.
I've been giving nutes by the guide 4ml bloom + 4ml topmax + 1ml bio-grow for awhile now.

By looking the guides my guess would be Molybdenum, but the ph shouldnt be the problem for it.
Which leaves me pretty much guessing here..

Help appreciated!

Merry christmas !
 
G

gagekko

Well-Known Member
Like the post above says.... Have you been supplementing Mg? I'm having the same issue and a good friend told me it Mg... Just curious if you've been using Mg and still having this issue.
 
J

jackmac

Active Member
cage said:
Hi guys,





So this is what we are looking at. @ 7½weeks flowering (barney's lsd)
I've been giving tap water and adjusted the ph before, but when i reached full nutes i thought the ph was fine bit below 7.
So now I took sample from the run-through water and as accurately I can read that color scale i'd say 6.7-7 ph.
I've been giving nutes by the guide 4ml bloom + 4ml topmax + 1ml bio-grow for awhile now.

By looking the guides my guess would be Molybdenum, but the ph shouldnt be the problem for it.
Which leaves me pretty much guessing here..

Help appreciated!

Merry christmas !
Click to expand...
I'll help you smoke it! You don't need any help - apart from that. Stop showing off! lol!

Nice
 
Dislexicmidget2021

Dislexicmidget2021

Well-Known Member
they look beautiful!At this point those leaves will more or less stay the same,she will need some nutes to counteract to much draw from the leaves,just adjust what you have been doing, lightly,it looks like your in the home stretch.
 
C

cage

Well-Known Member
gagekko said:
Like the post above says.... Have you been supplementing Mg? I'm having the same issue and a good friend told me it Mg... Just curious if you've been using Mg and still having this issue.
Click to expand...
I used about teaspoon of Epsom salt with few waterings around halfway into flowering. I think i'll try using more next time.
Did u start having this problem late in flowering?

Since i was tad high on the pH, i thought iron wasnt maybe absorbed well enough, which would leave to some buildup during late flowering and that would start blocking some other nutrients.
But as said, from this point on these are just some educated guesses.

I know they look somewhat good and there's little i can do for those girls anymore,
but there's always the next time!
 
Krondizzel

Krondizzel

New Member
Has anyone considered the strain? They look consistent. 7 1/2 weeks of flowering? You're right on the money man. Keep doing your thing, you're on the right track.
 
S

Stellah

Active Member
Not a Damn thing wrong with those beauties...late into the grow you will get these very small issues.You can begin the flush for a few weeks
 
J

jackmac

Active Member
cage said:
Hi guys,





So this is what we are looking at. @ 7½weeks flowering (barney's lsd)
I've been giving tap water and adjusted the ph before, but when i reached full nutes i thought the ph was fine bit below 7.
So now I took sample from the run-through water and as accurately I can read that color scale i'd say 6.7-7 ph.
I've been giving nutes by the guide 4ml bloom + 4ml topmax + 1ml bio-grow for awhile now.

By looking the guides my guess would be Molybdenum, but the ph shouldnt be the problem for it.
Which leaves me pretty much guessing here..

Help appreciated!

Merry christmas !
Click to expand...
Actually - just looked at your pics again - the only issue - and it doesn't matter this late in the game, but for future reference....look at pic no 2, I reckon that's what you're talking about (in error) as a 'deficiency' (because it's not a def. it's environmental) - the upcurling of the leaves; it's called transpiration - look it up and you'll know next time

Good Luck

Cheers!

ps I'll still help ya smoke it....
 
J

jackmac

Active Member
More info


  • Temperature:Transpiration rates go up as the temperature goes up, especially during the growing season, when the air is warmer due to stronger sunlight and warmer air masses. Higher temperatures cause the plant cells which control the openings (stoma) where water is released to the atmosphere to open, whereas colder temperatures cause the openings to close.
  • Relative humidity: As the relative humidity of the air surrounding the plant rises the transpiration rate falls. It is easier for water to evaporate into dryer air than into more saturated air.
  • Wind and air movement: Increased movement of the air around a plant will result in a higher transpiration rate. This is somewhat related to the relative humidity of the air, in that as water transpires from a leaf, the water saturates the air surrounding the leaf. If there is no wind, the air around the leaf may not move very much, raising the humidity of the air around the leaf. Wind will move the air around, with the result that the more saturated air close to the leaf is replaced by drier air.
  • Soil-moisture availability: When moisture is lacking, plants can begin to senesce (premature ageing, which can result in leaf loss) and transpire less water.
  • Type of plant: Plants transpire water at different rates. Some plants which grow in arid regions, such as cacti and succulents, conserve precious water by transpiring less water than other plants.


From the US Geological Survey at http://ga.water.usgs.gov/edu/watercycletranspiration.html

Edit: ps In other words, it's quite hot and dry* in there (*meaning rh low)....and a tad too much water (in the pots) perhaps....
 
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