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Thread: Any idea what this deficiency might be?

  1. #21

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    Just a couple weeks ago they were so healthy and bushy no drying and bright green leaves


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  2. #22

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    They look really malnourished for one, did all the leaves fall off? You need some new leaf growth back on before you think of flipping. Can you get the plants lifted so they arent on the floor for two ideally anywhere around 25 to 26 degrees is ideal but above that is k too, long as you dont get up much higher, temps down to 5 degrees less is cool. Whats the humidity situation and watering schedule,??? when you get them greened up, you should try and get the environmental condition's good so they take up the nutrients.

  3. #23

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    I actually took another look today after resetting the minimum and maximum temp it's dropping a lot when the lights are off it gets all the way down to about 60 Fahrenheit, could that be a problem?


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  4. #24

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    I took off al the leaves because they were either drying and crumbling up or turning brown and black


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  5. #25

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    I dont know farenheit, you dont want a big gap between lights off and on, and too low temperatures at night will fuck the plants up, which you dont want when your repairing them Was your watering schedule ok and humidity pre your leaves changing. Its unusual to go from really healthy to awful without some tell tale signs of hunger/burn/waterlogging/thirst/etc?

  6. #26

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    Thats around 15 C , too cold mate..

  7. #27

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    Cut and paste , you do need to sort your feed out and watering and humidity but re temp, hope the cut and paste below helps
    Temperature and marijuana plants

    The temperature in your grow room is very important for the photosynthesis of your marijuana plants. For example, low temperatures reduces evaporation through the leaves. The result is that the suction force, which takes up nutrients via the roots, becomes smaller. The nutrients that are necessary, but aren’t absorbed, remain in the growing medium and eventually disintegrates in the root environment. A high acidity in the growing medium reduces the working of the roots which makes the plant absorbs less water and nutrients, and the growth can even come to a halt.When the light is turned on, an ideal temperature for the cuttings and seedlings is between 68F and 77F (20C and 25C). As the plants get older they can evaporate a little bit more and the temperature may increase to a maximum of 82F (28C). When the lights are off, the temperature should lie between 62F and 72F (17C and 22C). Another important rule is that the temperature differences between day and night cannot be too high, a maximum difference of 10C. So when it’s 82F (28C) during the day, it cannot go below 64F (18F) at night

  8. #28

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    My humidity is usually around 50 it dosnt get any higher since I only got a small humidifier and I water whenever the dirt is dry depending on the size of the pot usually about 3-5days


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  9. #29

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    Quote Originally Posted by KAYA_MANny View Post
    My humidity is usually around 50 it dosnt get any higher since I only got a small humidifier and I water whenever the dirt is dry depending on the size of the pot usually about 3-5days


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    When you say dry, do you mean the top few inches or you let it dry out? could do with getting the humidity up a bit, even some wet towels would help a little

  10. #30

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    Like about 2 inches or so then the soil starts to feel a little moist.. ok I'm going to add a few towels to... what's an ideal humidity?


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  12. #31

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    above 60, might not get there with a couple of towels but it will help. Your soil drain ok, long as the roots are ok, I think it saveable. Stick something under the pots too, 15c at night and a cold concrete floor and low humidity and hungry, she will be weak and need some tlc mate

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