Need some advice

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Doc9151

Member
This is my first grow. Bag seed from Mexican brick. Using 400watt MH for veg, 600 watt Hps for flower. They started flowering May 20th. PH (soil ) 6.8, run off 6.5. Temp range in veg room stays constant at 78ºF, 60%. Flower room ranges from 79º-68ºF, with 77º as the average lights on temp. humidity range 63%-40%relative with digital device. They were started in yard dirt then moved to happy frog. Using FF trio. They require water every 2-3 days. The yellowing started 4 days ago and is progressing. Any advice is appreciated. I'm guessing its more indica dominant by the leaves. I also vegged for 90 days.1465870372872-352509643.jpg 146587045482822972878.jpg 14658705343181981176886.jpg 14658706442561910540880.jpg
 

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polishpollack

polishpollack

Well-Known Member
mixing yard dirt with potting soil might be an issue. using additional ferts with happy frog might be too much fert as happy frog has fert in it.
 
bravedave

bravedave

Well-Known Member
Yeah, not a happy plant. Not familiar with the FF trio, but I assume your nutes changed in the last month. What is the current NPK? What is telling you to water? ...I am in peat and water seldom is needed after 2 days...seems to me reg. soil would stay wetter longer.
Bottom line is I had a similar problem a year ago and I went to half nutes and then none...putting my head down and pushing to the finish. With mine, I later attributed it to a lack of Mg only because since that grow i started adding a little epson salt (1/8 tsp per gallon) early, about halfway through veg, and have avoided that early/fast yellowing.
 
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Doc9151

Member
I use a digital probe to check when to water this probe is 8", im pretty sure its not a water issue. They have been in the happy frog soil for 2 months, so, i would think the plants would have used what came in the soil. I did not add anything for the first month after planting in the happy frog. The only things i have added: FF trio, molassess (3wks ago) and water, nothing else. There are no bugs either. I have a 300x microscope and look regularly. Using rapitest soil test kit. N1 Nitrogen deficient, k3 sufficient, p3 sufficient. Last night was a feed night and the schedule calls for nitrogen so we will see.
 
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Doc9151

Member
bravedave said:
Yeah, not a happy plant. Not familiar with the FF trio, but I assume your nutes changed in the last month. What is the current NPK? What is telling you to water? ...I am in peat and water seldom is needed after 2 days...seems to me reg. soil would stay wetter longer.
Bottom line is I had a similar problem a year ago and I went to half nutes and then none...putting my head down and pushing to the finish. With mine, I later attributed it to a lack of Mg only because since that grow i started adding a little epson salt (1/8 tsp per gallon) early, about halfway through veg, and have avoided that early/fast yellowing.
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Thanks for the reply, i added some info to to the you requested. Thanks again. Love your avatar, i'm from the poarch creek tribe in atmore ala.
 
coreywebster

coreywebster

Well-Known Member
Read this link, the whole page. Rule it out if you don't feel it appropriate. Linking it because of the stem colour and the curling down.
http://www.growweedeasy.com/phosphorus-deficiency-cannabis
If your ph is 6.8 and your run off is 6.5, does that not mean your root zone is 6.3 ish? Slightly low for P uptake. Hate to complicate a thread but if it is it can be resolved and if not ruled out. GL Doc

@bravedave I think Alienwidow was looking at some of the dark green leaves and the clawing down as seeing an N tox.
 
Diabolical666

Diabolical666

Well-Known Member
I used FF soil n nutes for years..ff lacks cal mag big time. Get some cali magik and add it with your feedings. How much water are you giving during waterings and how much light you running?, whats temps?
Ahh nm i reread..lower that rh to 20-40% range
 
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Doc9151

Member
Diabolical666 said:
I used FF soil n nutes for years..ff lacks cal mag big time. Get some cali magik and add it with your feedings. How much water are you giving during waterings and how much light you running?, whats temps?
Ahh nm i reread..lower that rh to 20-40% range
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128oz in and 20 oz run off, i measure everything in a calibrated beaker
 
D

Doc9151

Member
bravedave said:
Yeah, not a happy plant. Not familiar with the FF trio, but I assume your nutes changed in the last month. What is the current NPK? What is telling you to water? ...I am in peat and water seldom is needed after 2 days...seems to me reg. soil would stay wetter longer.
Bottom line is I had a similar problem a year ago and I went to half nutes and then none...putting my head down and pushing to the finish. With mine, I later attributed it to a lack of Mg only because since that grow i started adding a little epson salt (1/8 tsp per gallon) early, about halfway through veg, and have avoided that early/fast yellowing.
Click to expand...
They are in an air-conditioned room will that have any effect on why I'm watering every 2 days possibly
 
Dr. Who

Dr. Who

Well-Known Member
Diabolical666 said:
To much water. Very little run off needed. This is why you have clawing, yellowing at the bottom with crunchy leaves. Overwatering causes roots to drown and not uptake nutes
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Great easy to understand answer!


Just like Diaboligirl said earlier ;-)....Get that RH down to 50 = high limit ! 45 is better!
 
Alienwidow

Alienwidow

Well-Known Member
bravedave said:
Would you mind explaining the "less N" part?
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The plants clawing. I figured the yellowing in between the leaf veins looks like mag def, so changing the food to lean more twards mag and dropping the N down would probably let him keep the same ppms and target the mag more.
 
SoOLED

SoOLED

Well-Known Member
ill throw my hat in: I'm gonna say, you don't have enough drainage, you need more air from the bottom. they seem water logged. you should be able to mold the soil with moisture content w/o excess water being released

also its a good idea to check for bugs, root aphids mostly....

get some proper pots too.
 
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