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Yellowing leafs.
- Thread starter PotHero
- Start date
yeah sounds like N to me... any pics?
If the upper leaves appear normal, with no redness of the veins, or blotches, or pale stripes between veins, it's most likely underfeeding (specifically nitrogen) or insufficient light to the lower part of the plant.
But you'd need to give more information to be certain, and/or post pics.
But you'd need to give more information to be certain, and/or post pics.
Sounds like nitrogen, but over watering can cause nitrogen absorbption issues and over feeding can cause nitrogen lockout...
is the plant showing any spotting or crispy leaves or is it a good plant and just has the yellowing leaves on the lower part of the plant?
is the plant showing any spotting or crispy leaves or is it a good plant and just has the yellowing leaves on the lower part of the plant?
PotHero
Member
This may help out a little.
How long has this problem been going on? About 4 days.
What STRAIN are you growing? Not exactally shure, i know its kush and indica.
What was the establishing technique? (seed or clone?)seed
What is the age of your plants? Little more than a month.
How Tall are the plants? about 8 inches
What PHASE (seedling, vegetative or flower) are the plants in? Very early flowering.
What Technique are you using? (SOG, SCROG etc) Not shure, first grow.
What size pots are you using? (Include how many subjects to pot) Very small potts, less than half gallon. Going to transplant soon as flowers pop up.
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)ProMix. very cheap soil is all i know.
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful*Currently using foxfarm big bloom and alaskan fish fertilizer. 1 tablespoon per gall gallon for alaskan, 2 per gallon for foxfarm. (only using alaskan shit becuse i need more nitrogen, other than that i wont be using it again.
What is the TDS/EC/PPM of your nutrients used?foxfarm 0.01-0.03-0.07, alaskan 5-1-1.
What is the pH of the "RUN-OFF"? Dont know
What method of pH test was administered? Using Strips? pH pen?Not currently testing the pH
How often are you watering? Usually every 2 days, lateley once a day, its been hot so the soil is drying out alot faster.
When was your last feeding and how often are you feeding? Well i just have the nutes mixed with the water so basically every time i water they get fed.
What size bulb are you using? 2 150 watt cfl's
What is the distance to the canopy? about an inch on one of my plants, the other ones a little lower.
What is your RH Factor? (Relative Humidity) no clue
What is the canopy temperature? no clue
What is the Day/Night Temp? (Include fluctuation range) no clue
What is the current Air Flow? (cfm etc.) idk just have a 3 computer fans set up, one intake. one inside my grow space just blowing on the plants, and one exaust fan.
Is the fan blowing directly at plants? yeah
Is the grow substrate constantly wet or moist? moiste
Is your water HARD or SOFT? its distilled.
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? distilled.
Has plant been recently pruned, cloned or pinched? nope
Have any pest chemicals been used? If so what and when? not really, just the nutes i listed.
Are plant's infected with pest's? not that i know of, a few mosquitos and nats have gotten into my growspace but i dont think they have done any damage.
How long has this problem been going on? About 4 days.
What STRAIN are you growing? Not exactally shure, i know its kush and indica.
What was the establishing technique? (seed or clone?)seed
What is the age of your plants? Little more than a month.
How Tall are the plants? about 8 inches
What PHASE (seedling, vegetative or flower) are the plants in? Very early flowering.
What Technique are you using? (SOG, SCROG etc) Not shure, first grow.
What size pots are you using? (Include how many subjects to pot) Very small potts, less than half gallon. Going to transplant soon as flowers pop up.
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)ProMix. very cheap soil is all i know.
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful*Currently using foxfarm big bloom and alaskan fish fertilizer. 1 tablespoon per gall gallon for alaskan, 2 per gallon for foxfarm. (only using alaskan shit becuse i need more nitrogen, other than that i wont be using it again.
What is the TDS/EC/PPM of your nutrients used?foxfarm 0.01-0.03-0.07, alaskan 5-1-1.
What is the pH of the "RUN-OFF"? Dont know
What method of pH test was administered? Using Strips? pH pen?Not currently testing the pH
How often are you watering? Usually every 2 days, lateley once a day, its been hot so the soil is drying out alot faster.
When was your last feeding and how often are you feeding? Well i just have the nutes mixed with the water so basically every time i water they get fed.
What size bulb are you using? 2 150 watt cfl's
What is the distance to the canopy? about an inch on one of my plants, the other ones a little lower.
What is your RH Factor? (Relative Humidity) no clue
What is the canopy temperature? no clue
What is the Day/Night Temp? (Include fluctuation range) no clue
What is the current Air Flow? (cfm etc.) idk just have a 3 computer fans set up, one intake. one inside my grow space just blowing on the plants, and one exaust fan.
Is the fan blowing directly at plants? yeah
Is the grow substrate constantly wet or moist? moiste
Is your water HARD or SOFT? its distilled.
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? distilled.
Has plant been recently pruned, cloned or pinched? nope
Have any pest chemicals been used? If so what and when? not really, just the nutes i listed.
Are plant's infected with pest's? not that i know of, a few mosquitos and nats have gotten into my growspace but i dont think they have done any damage.
That signals lockout from overfert, overwatering, poor soil pH, or some combination of those.PotHero said:
The fix is a little harder, but this is it:
Check the pH of your soil runoff.
Flush your plant well with plain water adjusted to compensate for any soil pH problems you have observed.
Now feed immediately with a complete grow fert (if you are running one with 7% N, the other numbers should be about 3 or 4, and there should be a listing of micronutes on the back too) mixed at half what the bottle says.
Now check that your pot drains very well, and if there is a built-in catch tray, rip it off. You can also drill more holes in the bottom and sides to improve oxygenation to the root zone.
Good luck.
Buzz Lightyear
Member
Transplant to larger containers now. Be sure that your soil mix contains dolomite lime or garden lime with a high magnesium content. I noticed that some miracle grow soil mixes, for example, dont include lime so you can add some at 2 teaspoons per gallon of soil mix.PotHero said:
Your adding about 200 ppm nitrogen with the fish ferts. That's a pretty strong dose to do daily. I suggest cutting this down to only 100 ppm nitrogen...use half as much.
Happy growing!
