I have no idea whats wrong
- Thread starter Dboi87
- Start date
OUTDOOR FARMER
Well-Known Member
by chance pot too small root showing on bottom of pot, how often watering
firsttimegrower1993
Member
Magnesium deficiency, and maybe too much watering
firsttimegrower1993
Member
Also could be Calcium, but take a look here https://www.rollitup.org/marijuana-plant-problems/488004-guide-nutrient-deficiency-toxicity.html
Popcorn900
Well-Known Member
Your lights are to close for one(the curling of the leaves). Get them out of those little cups because that is most likely your culprit. I bet when you transplant there will be just a mass of root lol. They're too big for those cups thats why there dying. Good luck.
rikcherron99
Active Member
i agree with pop but you might have multiple things going wrong, pot size, to close to lights, possible deficiency
if re potting and raising the light doesnt help then check out some threads on deficiencies
if re potting and raising the light doesnt help then check out some threads on deficiencies
HeartlandHank
Well-Known Member
transplant, water with a balanced feed. Then, look for healthy NEW growth.
Dboi87
Well-Known Member
Well I appreciate the replies. I definitely have not over or under watered. And for my last grow I experimented with a couple plants in two ounce dixie cups and those went for two months and were fine. In fact both plants went to about 14 inches before I transplanted and flowered them and there were no necrosis like there are here. The light is a little 26w cfl I use for sprouting seeds before going under my HIDs. So my guess is either a deficiency or a fungus. However, it's planted in new happy frog soil. Shouldn't there be more than enough nutrients in the soil? The plants only two weeks old
GandalfdaGreen
Well-Known Member
I am very interested in whats is going on here. Could you tell me about your water's ppms, ph? What kind of water is it?
Dboi87
Well-Known Member
The water is regular tap water. My last grow was tap water from beginning to end with no problems. I've never ph'd my water so maybe that has something to do with it. I wouldn't even know how to test ph in soil though. And again I haven't fed any nutes with the soil being new happy frog soil which has a reputation for burning plants to begin with. I've changed since my last grow which went great, which is why I'm worried it may be some fungus or disease.
tusseltussel
Well-Known Member
transplant that thing first, it wil probably clear up with just that...
Dboi87
Well-Known Member
You guys may all be right about transplanting. I'm in no way refuting that. I'm just wondering why 2 weeks in a 42 oz cup would cause problems when I've played around keeping plants in tiny 2 oz dixies with no problems. They were actually healthier looking than my plants in 3 and 5 gal smart pots. I'll try it though and report what happens
HeartlandHank
Well-Known Member
It looks like a few deficiencies.. Mag being the biggest.
A balanced feed should clear it up..If you want to do more, try Botanicare Cal Mag along with your feed.
Magnesium is easily leached from some media/soil... your no feed watering could have leached it out and left nothing to replace it.
Magnesium is mobile in the plant... This is why you see it in the older leaves and not the newer growth. And, part of why I say mag.
Botanicare Cal Mag+ and Earth Juice Micronutrients are two good bottles to keep around for as needed use.
I like Botanicare Cal Mag as a little N Boost to my regular feed as well...
I highly doubt a fungus is your problem... Maybe check out your root health.
If the plant is not rootbound then no need to transplant. Pretty much, if roots are spinning around the container, then you could benefit from a transplant.
A good rough guide is 1gal media per 1 month of growth.. I do that +1, roughly..
Big root systems are key to big yields. A plant with the above rule vs a plant with 1/2 as much media will yield more every time.
Popcorn900
Well-Known Member
To test PH in soil you can just catch some run off from a flush or buy a probe(expensive). By your own statement "I haven't fed any nutes" leads me to believe that they are dying because of the dixie cups. But it could be the dirt as well is it a new bag? maybe it was bad?. Also some strains will do very well in small pots or cups in your case others won't. Is this the same strain you have used before?
HeartlandHank
Well-Known Member
Yep. Some are very sensitive. The worst cases I have seen involved excessive preflower clusters in veg along with a mess of problems. slowed growth, fungus susceptible, nute lockouts, etc. Similar to reveg. Almost like it autoflowers followed by reveg.
I'm pretty sure sativa blueberry is sort of known for that. I experienced it with two different blueberry plants (same cross), also recall Chimera talking about that issue with some of DJ Short Blueberry. It might have just been specific to that plant (B130 male), not sure. I think I remember seeing other folks BB crosses do the same on ICMAG.
Popcorn900
Well-Known Member
I have seen grows of people just using beer cans and getting single cola plants that are on average yielding 7 gram a plant. I have seen this done in many grows the biggest I saw in person was 100 cans in a 10x10 room with a 1200 w sun agro vertical(I never did a follow up on the yield though). It's the damndest thing to see in person a room stacked from floor to roof with beer cans with a pot plant growing out of it lol.
HeartlandHank
Well-Known Member
Haha, yeah, that would be cool too see.
Dboi87
Well-Known Member
The dixie cups were the last grow and eventually I transplanted. Just wanted to see how far I could take them. This plant is in a 44 ounce foam cup with holes put in at the bottom for drainage. I was following UBs germination method. He says to transplant in three weeks from 16 oz cups. Since I've planted in a cup much bigger and because it's only been two weeks I highly doubted pot size being the culprit but like I said I will try to transplant anyways.
Dboi87
Well-Known Member
I'm glad you mentioned the micros. Besides a handful of companies most don't list micronutes. Ill definitely look into those
recap
What wrong is:
1) you're using tap water (did you bubble your water to get rid of chlorine?)
2) you're not using Cal/mag. <---deficiency classic brown spots
3) your container is too small. causes stress. If you must grow in soil look into fabric pots.
4) you're not checking your ph. Make a batch of water Ph 6.5. Flush your plant with it. Catch the run off and measure the Ph.
Not doing these things is like driving in the dark with no lights on. You'll be moving along but sooner or later you're going to crash.
I grew in soil for 3 years before finally switching to dwc. Wish I had switched sooner. Its very easy. 2x the growth rate.
Have you grown in dwc ?
What wrong is:
1) you're using tap water (did you bubble your water to get rid of chlorine?)
2) you're not using Cal/mag. <---deficiency classic brown spots
3) your container is too small. causes stress. If you must grow in soil look into fabric pots.
4) you're not checking your ph. Make a batch of water Ph 6.5. Flush your plant with it. Catch the run off and measure the Ph.
Not doing these things is like driving in the dark with no lights on. You'll be moving along but sooner or later you're going to crash.
I grew in soil for 3 years before finally switching to dwc. Wish I had switched sooner. Its very easy. 2x the growth rate.
Have you grown in dwc ?