• Home
  • Forums
  • Medical Cannabis Cultivation
  • Cannabis Infirmary
  • Please Help!!! Possible Calcium Magnesium deficiency or overload?

Please Help!!! Possible Calcium Magnesium deficiency or overload?

  • Thread starter Thread starter Cogseye
  • Start date Start date Jan 19, 2020
  • Tagged users Tagged users None

Please Help!!! Possible Calcium Magnesium deficiency or overload?

Cogseye Jan 19, 2020 13 Replies 1,344 Views
Page 1 of 1 · Replies 1–14 of 14
1

Cogseye

Posts
2
Reactions
1
Joined
Jan 19, 2020
Points
3
Jan 19, 2020
#1
Plants are 4 weeks into flowering. Ph of soil and runoff in proper ranges. Starts at the top and moves down. Seems to only affect fan leaves for the most part. Any ideas?
 

Attachments

  • please-help-possible-calcium-magnesium-deficiency-or-overload.jpg
    683.1 KB · Views: 198
  • please-help-possible-calcium-magnesium-deficiency-or-overload-2.jpg
    308.1 KB · Views: 116
  • please-help-possible-calcium-magnesium-deficiency-or-overload-3.jpg
    592.3 KB · Views: 113
  • please-help-possible-calcium-magnesium-deficiency-or-overload-4.jpg
    465.8 KB · Views: 115
  • please-help-possible-calcium-magnesium-deficiency-or-overload-5.jpg
    732.3 KB · Views: 109
Quote Reply

Nugg

Posts
702
Reactions
882
Joined
Apr 16, 2018
Points
93
Jan 19, 2020
#2
Any idea of ppm.room temps,rh,light hight,type of soil ect.?
 
Quote Reply

oldskol4evr

Posts
12,306
Reactions
36,504
Joined
Oct 18, 2015
Points
438
Jan 19, 2020
#3
gave um a pk boast right ?
 
Reactions: Beachwalker
Quote Reply

dire wolf

Posts
4,921
Reactions
10,542
Joined
Jun 24, 2019
Points
263
Jan 19, 2020
#4
Looks like they got really hot one day, or nute fried to me.....
Ok lets go with nutrient toxicity
Or hmmm...
 
Quote Reply

Beachwalker

Posts
7,055
Reactions
14,445
Joined
Apr 10, 2019
Points
313
Jan 19, 2020
#5
Why are you spraying them?

Recalibrate your meters then do a slurry test and tell us the pH & ppm results
 
Reactions: Moshmen
Quote Reply

weedtech

Supporter
Posts
419
Reactions
613
Joined
Oct 24, 2019
Points
93
Jan 19, 2020
#6
Oh, my. I did this recently to a new strain ( Lemongrass ) that really didn't like my CalMag habits. But I saw it in veg. The BlackJack was good with it, but in the Lemongrass it turned into a lock-up clusterfuck. I typically use 3-5ml/gal. but I think the real fuck up was using General Organics CaMg+ just once because it was on the shelf and I had run out of Botanicare. Lets just say these are two that don't run well together if you are too lazy to feed separately.

Sorry you are in flower. That's gonna stunt and hurt badly. It looks like multiple lockup to me.
 
Reactions: Moshmen
Quote Reply

Cogseye

Posts
2
Reactions
1
Joined
Jan 19, 2020
Points
3
Jan 20, 2020
#7
Wasn't spraying I had just finished flushing the pots. A little dropped on the plant... PH after recalibration from slurry test was 6.7 PPM was 632.
 
Reactions: oldskol4evr
Quote Reply

OldManRiver

Posts
1,390
Reactions
2,880
Joined
Jul 20, 2017
Points
263
Jan 20, 2020
#8
They look like too much N to me.
 
Reactions: detroitjoe and dire wolf
Quote Reply

Beachwalker

Posts
7,055
Reactions
14,445
Joined
Apr 10, 2019
Points
313
Jan 20, 2020
#9
Cogseye said:
Wasn't spraying I had just finished flushing the pots. A little dropped on the plant... PH after recalibration from slurry test was 6.7 PPM was 632.
Click to expand...
Those numbers are acceptable so something else is wrong, what are you feeding and when you cut back on nitrogen?
 
Quote Reply

HeLLfiReZ

Posts
267
Reactions
543
Joined
Jan 15, 2020
Points
93
Jan 20, 2020
#10
To much calcium is my guess. I do things a little different than most. I use cal nitrate 15.5-0-0. With fertilizers. 0 to 7-x-x. Depending on the life cycle. Give me the ability to be in complete control of n.
 
Reactions: Moshmen
Quote Reply

Beachwalker

Posts
7,055
Reactions
14,445
Joined
Apr 10, 2019
Points
313
Jan 20, 2020
#11
So I looked again they're definitely overfed (dark green) the Leaf curl is from too much nitrogen and I suspect you not really flushing out the soil well on a regular basis despite those numbers?

What kind of soil is it? Also am I seeing tons of little white dots have you checked for bugs tell us more what you have going on??
View attachment 931905
 
Quote Reply

oldskol4evr

Posts
12,306
Reactions
36,504
Joined
Oct 18, 2015
Points
438
Jan 20, 2020
#12
Cogseye said:
Wasn't spraying I had just finished flushing the pots. A little dropped on the plant... PH after recalibration from slurry test was 6.7 PPM was 632.
Click to expand...
those numbers sound great actully ideal,but you didnt answer the question,did you give this plant a pk boast and seen it burning it like a flame and rush and flushed it?
ask me how i know the look,so you acheived the flush,now you washed every thing from your pot,you have to start over cause there nothing there as far as nutrients or microbe life, start feeding at 750 ppm and work your way up slowly,im thinking they should be at the 1000 ppm stage ,but work your way up,all those dead leaves need to go,doing nothing so to not attract bugs id cut um out
 
Quote Reply

HeLLfiReZ

Posts
267
Reactions
543
Joined
Jan 15, 2020
Points
93
Jan 20, 2020
#13
weedtech said:
Oh, my. I did this recently to a new strain ( Lemongrass ) that really didn't like my CalMag habits. But I saw it in veg. The BlackJack was good with it, but in the Lemongrass it turned into a lock-up clusterfuck. I typically use 3-5ml/gal. but I think the real fuck up was using General Organics CaMg+ just once because it was on the shelf and I had run out of Botanicare. Lets just say these are two that don't run well together if you are too lazy to feed separately.

Sorry you are in flower. That's gonna stunt and hurt badly. It looks like multiple lockup to me.
Click to expand...
Agreed its going to stunt bud development quite a bit. If you can get your n under control you may have to flower a couple extra weeks. Even with the extra weeks you will still get less than optimal.
 
Quote Reply

OldManRiver

Posts
1,390
Reactions
2,880
Joined
Jul 20, 2017
Points
263
Jan 20, 2020
#14
weedtech said:
Oh, my. I did this recently to a new strain ( Lemongrass ) that really didn't like my CalMag habits. But I saw it in veg. The BlackJack was good with it, but in the Lemongrass it turned into a lock-up clusterfuck. I typically use 3-5ml/gal. but I think the real fuck up was using General Organics CaMg+ just once because it was on the shelf and I had run out of Botanicare. Lets just say these are two that don't run well together if you are too lazy to feed separately.
Click to expand...
Never mix brands. Calcium and magnesium can be supplied by different compounds, and those compounds react differently with other compounds supplying NPK, in ways that can render the results insoluble to plants The chemists at each brand pick the mix that works within their line.
 
Reactions: Beachwalker
Quote Reply
Page 1 of 1 · Replies 1–14 of 14
1

Thread info

Replies 13
Views 1,344
Started Jan 19, 2020
Latest post Jan 20, 2020
Starter Cogseye
Forum Cannabis Infirmary

Latest posts

  • J
    Virginia Growers Thread - Everything VA
    • Latest: josh65
    • 11 minutes ago
    Basic Growing Information
  • How Little PPM can they handle?
    • Latest: WinJr63
    • 26 minutes ago
    Basic Growing Information
  • how to Bubble washing and tips 2024
    • Latest: WinJr63
    • 36 minutes ago
    Concentrates & Processing
  • T
    Any tips for my first guerilla grow?
    • Latest: TheIslandIsGreen
    • 46 minutes ago
    General Outdoor Growing
  • Cpurola's Outdoor grow in Southeast Michigan 2026
    • Latest: Like2Grow
    • Today at 2:19 PM
    General Outdoor Growing
  • Home
  • Forums
  • Medical Cannabis Cultivation
  • Cannabis Infirmary
  • Please Help!!! Possible Calcium Magnesium deficiency or overload?
  • Contact us
  • Terms and rules
  • Privacy policy
  • Help
  • Home
Community platform by XenForo® © 2010-2026 XenForo Ltd.
Menu
Log in

Sign up

  • Home
  • News
  • Classifieds
  • Forums
    • What's new Featured content New posts New Articles New articles New products Latest activity
  • Social
  • Strains
  • Live
  • Learn
  • Brands
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?