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Growing Under Glass

Growing in greenhouses and poly-tunnels

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  • Posts

    • Tony K
      Water/feed is 23 degrees; lighting is 600w HPS; approx 60 cm above canopy. Until recently it was higher than that - I'd raised it a while back to try and reduce the potential for heat/burn problems. But given that I seemed to have a Nitrogen toxicity issue I lowered it as I'd read that the plants can't process the N as readily with insufficient light.     Oh yes, I'm a firm believer in that! Next time its Growers Ark for me, see if that changes things.     I'll struggle to get a reliable EC but pH should be attainable.   Thanks for your input, it is much appreciated.
    • MK11
      What temperature is your feed?what light are they under how high is it? ime once you see a calcium problem it's too late,your forever chasing your tail. calcium is a chelator and assists lots of processes in the plant,it is easily washed out and hot dry atmospheres and highly transpiring plants soon lack calcium.   what i have done in the past cut off all the necrotic parts of the leaves,they aint doing you or the plant any good lower your temps,improve air flow Check the ec  & ph of your run off  next time you water with bloom feed. You'll still get a smoke out of them.
    • Ned Flanders
      Howdy doodles dude Better off being a bit heavier handed with the training.  Avoid trimming autos if you can. Upload some pics let us appraise the situation.   
    • ratdog
      if only it were that simple