Grow for fun only
Well-Known Member
Hey buddyI found the Giveaway activity from the ledgrowlightsdepot, say they will send a mars ii 400 led grow light, you check the link they offer and good luck to you guys : tinyurl.com/mars400
Guide to Nutrient Deficiency or Toxicity
- Thread starter nick17gar
- Start date
Kent Sage
Active Member
A lot of growers I have seen are getting great result from cobs with LEDs and paying less to run them. I am considering buys a few for xtra flower power lolthat's good buddy and thx for sharign the growing tips, you are experienced for the growing, i am very new., but i heard that use sulphur will damage the light. you use the sulphur during the plants growing ?
have you used other lights from marshydro? like the cob, i see the forum see many guys do diy cob light, do you think it's safe to diy a light ?
https://www.mars-hydro.com/media/catalog/product/cache/2/small_image/300x/17f82f742ffe127f42dca9de82fb58b1/2/_/2_18_2.jpg
I do use sulphur traces in the soil as well as a pesticide with pyrethrins and sulphur mix. Sulphur helps with the respiratory system of the plants so I find that a foliar feed with it works well. Found some on the market
Interesting fact: pyrethrins attack the nervous system of the insects, when used as a foliar feed they will try to eat the leave and freeze right to the leaf.
They are found in nature within chrysanthemums if your looking for a bug repelling companion plant
DIY lights can be less expensive, but without a qualified electrician it could be risky, with all electrical components make sure to check polarity and cover all exposed leads. Most of the time lights with chipsets a less expensive to run imho of course
Grow for fun only
Well-Known Member
Hey buddy, Sulphur is a reason to get the light damaged gradually ,cuz Fe + S = FeS 
Plus Sulphur makes the health problem like cancer if use it in the room very often or people have the Sulphured buds for long time. so suggest get it away earlier even it help the good yields
Plus Sulphur makes the health problem like cancer if use it in the room very often or people have the Sulphured buds for long time. so suggest get it away earlier even it help the good yields
your Right..
BluRidgeBaby
Member
Wonderful post. I read completely but i am still stuck.. if you get a chance would you read my post.. or just look at the pictures and give me a quick diagnoses if possible. I am not a noob but i just can't figure out whats going on.
Thanks again for this guide i will definitely come back to it in the future.
https://www.rollitup.org/t/name-this-deficiency-vote-inside.974300/
Thanks again for this guide i will definitely come back to it in the future.
https://www.rollitup.org/t/name-this-deficiency-vote-inside.974300/
mariguanisimoo
Member
Hi, new here
I made the switch from GH to Jacks Hydro and Cal Nit on my last grow and I have been having issues
I have been feeding 600ppm, 360ppm jacks and 240ppm calnit (500scale)
Ph 6.0
Dwc
Strain white widow
Thanks
I made the switch from GH to Jacks Hydro and Cal Nit on my last grow and I have been having issues
I have been feeding 600ppm, 360ppm jacks and 240ppm calnit (500scale)
Ph 6.0
Dwc
Strain white widow
Thanks
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Bountykiller420
Well-Known Member
looks like a Mg deficiency, add epsom at 1gram per gallon
Lightning420
New Member
Awesome write up! So glad I found this
I’m having some issues myself with a new grow. I had received a few clones from a friend. It was late 8n the season and I currently don’t have a room set up, so I have been growing outdoors. It’s getting late and seasons are turning fast so I’m going to have t bring them in VERY soon. My plants are in cloth pots, medium is Coco Andy perlite (coco pearl brand). The last week I’ve had a caterpillar issue and I think I controlled that but now my leaves are changing colors and looks like Nuer burn! Any help??
I’m having some issues myself with a new grow. I had received a few clones from a friend. It was late 8n the season and I currently don’t have a room set up, so I have been growing outdoors. It’s getting late and seasons are turning fast so I’m going to have t bring them in VERY soon. My plants are in cloth pots, medium is Coco Andy perlite (coco pearl brand). The last week I’ve had a caterpillar issue and I think I controlled that but now my leaves are changing colors and looks like Nuer burn! Any help??
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Grow for fun only
Well-Known Member
the third evil here
Grow for fun only
Well-Known Member
wanna taste
john wishmyer
Well-Known Member
hey lads, saw the symptoms of phosphorus abundance...new growth on my plant is finally coming in much clear no signs of a burn curl ect. im just wondering for future reference do you guys think my plant was lo locked out of those micros due to a abundance of P? pics included
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Grow for fun only
Well-Known Member
Seems it is from Nitrogen Toxicity or overwatered. Probably you accidentally give the plants give too much Nitrogen, especially in the flowering stage. This results in dark, shiny, clawing leaves. If so just reduce the Nitrogen your plant is getting!
If overwatered-----Make sure that water drains freely from the bottom of your container (it’s recommended that you provide enough water to get at least 20% extra runoff every time you water your plants as long as your plants are drinking well).
You should see water coming out the bottom within a minute or two after watering. Then don’t water your plants again until the soil is dry up to your first knuckle.
Whenever a seedling has droopy leaves, it means that the roots are either not getting enough water (underwatered) or not getting enough oxygen (overwatered). This seedling has been chronically watered too often, preventing the roots from getting enough oxygen. As a result, the seedling has stayed small and mostly stopped growing.
john wishmyer
Well-Known Member
Must have not included enough info ive noticed a trend on here that people tend to go straight to over watering yet if you tell them how little you water they go straight to undering watering..for the record i only water when my pot is extremely light as well as well as taking in how hot weather is. she in a 3 gallon smart pot. i decided to feed her P in anticipation for her flower cycle but i must have added a bit much because she showed nitrogen tox symptoms followed by mag def symptoms, ive read that too much phosphorus will lock out micros. i flushed with about 2 gallons of water and back to normal within a week. im going to assume that my statement was correct, which is that the excess P caused a lockout which was then corrected by a simple flush. Just wanted some input to see if my hypothesis was correct. if you look at my photos i have included, theres a couple fan leafs which exhibited these symptoms as well as a new clean ones with absolute no symptoms of excess or deficiency.
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MyFloridaGreen360
Member
An inadequacy of this causes yellowing of the clears out. its regular amid vegetative essentially on the grounds that the plant is utilizing it up similarly as quick as your placing it in. It likewise occurs amid blooming now and then on the grounds that most blossoming manures contain practically zero nitrogen, as this is certainly not a key supplement in that period of the vegetation's cycle.
Bblazzed530
New Member
can anyone tell me why this plants leaves are rolling
Grow for fun only
Well-Known Member
This looks like the result of excessive heat, root problems (possibly from overwatering) and/or suffering from extreme humidity levels (such as very high or low humidity).
Grow for fun only
Well-Known Member
When the serrated edges of marijuana leaves curls or tipped up like that, it’s often a sign of temperature stress, overwatering/root problems or extreme humidity levels. This plant was overwatered and living in high heat, which is what caused these symptoms.
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Grow for fun only
Well-Known Member
When the problem is low humidity, the leaf will also often fold in the middle, like a taco.
What’s your temperature in your grow area? Is there a hot spot around these plants from the grow light?
If this is happening to the plants which are closest to your grow light, that’s a hint that the problem may be temperature related.
If your light is simply too close, you can move the bulb further away from these plants and this issue may resolve itself. However, these leaves are showing symptoms of heat stress, without light stress (burning / spotting), so it’s more likely that the light is a good distance away and the heat just isn’t being controlled properly.
If plants are also droopy, it’s likely you’re dealing with watering or root problems.
When growing with hot HID lights, good ventillation and an exhaust fan will go a long way towards preventing all these problems. If the whole grow area is too hot with stagnant air, you will want to consider venting out all that extra heat.
Having good air movement, like a small fan in your grow tent blowing over the tops of your plants, can help prevent hot spots from forming directly under your grow lights.
What’s your temperature in your grow area? Is there a hot spot around these plants from the grow light?
If this is happening to the plants which are closest to your grow light, that’s a hint that the problem may be temperature related.
If your light is simply too close, you can move the bulb further away from these plants and this issue may resolve itself. However, these leaves are showing symptoms of heat stress, without light stress (burning / spotting), so it’s more likely that the light is a good distance away and the heat just isn’t being controlled properly.
If plants are also droopy, it’s likely you’re dealing with watering or root problems.
When growing with hot HID lights, good ventillation and an exhaust fan will go a long way towards preventing all these problems. If the whole grow area is too hot with stagnant air, you will want to consider venting out all that extra heat.
Having good air movement, like a small fan in your grow tent blowing over the tops of your plants, can help prevent hot spots from forming directly under your grow lights.
Tas devil
Well-Known Member
Hi guys .have a little problem with my outdoor near 4 months ols sunset sherbet.plant is a nice sise big stem and laterals but i have noticed in least couple weeks leaves about 4-5 nodes from the top have a light color at base of leaf and also im seeing leaves 2nd from the top going a light color between the veins and is progressing rather quickly..i gave them there feed on 27th which was aloe and kelp ferment with fulvic acid.and on the 2nd jan gave them a foliar spray of the aloe kelp ferment fertilizer as it has cal mag in it..soil in 2 places i checked ph was 6.5 6.6..im not seeing any improvement and am thinking maybe its manganese but only guessing plant has had 1 cup of oyster shell before planting etc with other amendments..i do have some professors nutrients go green which is a 4 in 1 nitrogen cal mag and iron im considering on giving it...i also have a plant in different area different soil which has the same def but both plants beside it are fine and one is different strain.but both are sunset sherbet...i just dont know what to give them.should i try the go green 4 in 1..last pic is another plant thats more advanced .. 
