Have A Plant Problem? Check Here First

NaturesMed

NaturesMed

Active Member
I have been a successful grower in the past with my personally tweaked schedule of GH 3-part with some epsoms and additional PK boosts during flower.

Some details:
Ebb and Flow of 5gal buckets with Hydroton clay
Ph around 5.8 - stays pretty steady
PPM 750-800 @ 700 conversion - Also stays pretty steady
Flooded 2x/day, 12hrs apart
RO water
GH 3 part with calmag+epsoms, PK boost for FLR - Ratios listed below
Temps 67-79, humidity normal



My water at my current location went hard in the middle of the summer and I purchased an RO filter. Everything was great at first, I added Cal-Mag at 5ml/15-10-5 of 3 part and set my concentration at about 750 ppm on 700 conversion factor.
The actual numbers for 100gal of solution were:
450ml gro
300ml micro
150ml bloom
150ml calmag
and 4.5 tsp epsom salt

They seemed quite happy with this through veg, but in the second week of flower(after switching to the inverted FLR formula) they started to show some yellowing at the bottom. I interpreted it as magnesium deficiency and upped the calmag and epsom for the third week.
Numbers for 100 gal:
125ml gro
250ml micro
375ml bloom
300ml calmag
6 tsp epsom
250ml P/K-13/14.
Still around 750 ppm @700 conversion and kept at 5.8 Ph

But the deficiency only seemed to accelerate, some light brown necrosis can be seen in the 4th and 5th pictures. I am not sure if it is magnesium deficiency or possibly nitrogen deficiency(can't tell for sure if its interveinal chlorosis), which the visual signs suggest. But by adding extra calmag plus, I have already added more of both!

I have also added a high dose of PK booster, however I have always had great success at that rate in the past...

Thoughts:

Mag
I think it looks most like magnesium deficiency, but I am adding so much calmag and epsoms that I dont know if thats possible. Mag could be getting locked out by too much calcium, but calmag supplies both in proper ratios, plus i am adding extra mag to the cal/mag ratio with epsoms. Mag could be getting locked out by too much potassium but I have used similar levels without any problem in the past.

Nitrogen
It also looks kind of like nitrogen deficiency to me, but I am not sure why I would be seeing that at this point.

P+K
I really dont think it is Phosphorus or Potassium deficiency, I have dealt with both aplenty and it resembles neither.

Ph control
I keep very close watch and maintain Ph in between 5.7 and 5.9, usually at 5.8. This has always worked tremendously for me and I dont believe Ph is causing this problem..

UNDERWATERING
I am new to Ebb and Flow schedules, used to be a DWC, and I am ONLY FLOODING TWICE/DAY, 12 hours apart, even though the plants are 3-5 ft and bushy. They do have 5 gallons of clay media to fill out with roots and I never really see drooping from thirst so I kept it infrequent to avoid rot.
Is it possible that the plants aren't getting enough nutrients simply because they aren't being flooded enough?

ANY INSIGHT IS GREATLY APPRECIATED!!! I have tried to include all pertinent details, but please dont hesitate to ask if not...

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XxM1k3YxX

XxM1k3YxX

Member
NaturesMed said:
XxM1k3YxX - Your pics look to me like either potassium or calcium deficiency. The lower leaves which are starting to exhibit interveinal chlorosis indicate a K(potassium) deficiency, which is accompanied by the edges burning as you are seeing. However you can see an edge burn from simply a calcium deficiency without chlorosis if other deficiencies are not also present. Note: Often times, due to Ph or other lockout, multiple deficiencies present themselves simultaneously, confusing the identification process. Check out the below chart to see if you are locking out nutrients by means of Ph. Best way is to test your runoff to get a better idea what the soil Ph is at, then feed water ph can be adjusted. Another possible cause is hard water. Believe it or not if you water is hard and full of calcium, it can actually prevent calcium from being absorbed because the calcium present is in the form of carbonate which cannot be absorbed by the plant and will actually clog roots preventing other nutrients from being properly uptaken. My water read at 110ppm @ 700 conversion out of tap and it was nearly impossible to grow in, at least hydroponically. Conversely, if you have good water with low starting ppm and are seeing calcium deficiency, the plants could need extra calcium and a product like cal-mag will help

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Thanks bro they both turned out to be a male and hermie but this info will be helpful in the future, Thanks again.
 
WeedKillsBrainCells

WeedKillsBrainCells

Well-Known Member
View attachment 1819414View attachment 1819415

any ideas? recently its been moved to extremely low wattage due to problems with lighting, and its around its flowering time. its 30 days old or so. this was just a test run as its a regular seed so itll probably be male, but id like the plant to survive long enough just to see. the lower leaves are near dead now, but some of the big fan leaves are showing yellow/brown on the tips. i figured it was a lack of light due to only being the bottom leaves, but the fans too? theyve been fed nutes recently, once half dose, twice full dose.
 
alltrac

alltrac

Member
photo11123.jpgView attachment 1825896

Any info/opinion would be appreciate, im near to harvest,time became hotter and the sun came back but last week was a lot rainy whit moisture and around 2-5C at night now its around 10-12C in night is it really becuz bad temp that the lead became darker on top and is there any chance to ruin my harvest?should i harvest know or before?Thx a lot
 
Kushbacca

Kushbacca

Member
I wonder if those photos that kick off this thread are still around. Seeing as this is a sticky thread is would be great to have all that information.
 
MoonRaver

MoonRaver

Active Member
I'm not sure if everyone is having this problem but the pictures in this guide aren't loading. Would be nice if it were fixed. :)

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The site that used to host the pictures changed their url's to the pics. Think the links need to be fixed.
 
Uncle Jimmy

Uncle Jimmy

Member
my plants are 4 weeks into buds and alot of the leave are turning brownish and dying. Leave are yellowish but the buds are coming on. any suggestion?
 
*BUDS

*BUDS

Well-Known Member
Poor lighting for flowering causing bud stunting and leaf drop and lack of vigor. Next time only flower with hps and keep temps 75-80 to avoid the stringy stretchy plants that you have.
 
J

jooseboxx7

Member
Just toped my plants all but one are cool. on the top of one of the plant is slumped over just at the top will put pics up later please help
 
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