way4too2high0
Well-Known Member
plant is at 5 weeks and a couple days ago i noticed the branches turning purple and start decending to the bottm of the main stem. nutrients, light cycle, ph, and moisture are fine. should i give it more nitrogen?
No don't give it any Nitrogen, purple stems is not an indication of Nitrogen deficiency.plant is at 5 weeks and a couple days ago i noticed the branches turning purple and start decending to the bottm of the main stem. nutrients, light cycle, ph, and moisture are fine. should i give it more nitrogen?
true on molybdenum; sounds more like p. however, i don't agree with the statement on phos. i beleive that's exactly what is wrong, as even strains with genetically purple stems do not show much more than purple freckles if fed properly. if you notice any yellowing at the veins of the leaves, feed with a flower fert once, and switch back. that should provide enough phosphorous to the plant until you flower... after the first few weeks of flower, you'll be feeding with higher p and k values anyway.Monitor the situation and watch the leaf colours - if they start changing colour then its possible it's deficient in P, but what I can tell you with 99% confidence is that's it is not deficient in Molybendum - Cannabis plants rarely ever suffer Molybendum deficiency and it's the rarest of the nutrients to be found deficient in Cannabis plants - the plants simply don't use enough of it to become deficient in that nutrient.
Then we'll have to agree to disagree. There's plenty of plants that have genetic purple stems and they're purple not freckled - I had some on my last grow and they were not deficient in Phosphorus as I've already stated. They have purple stems for exactly the same reason that some varieties in flower produce purple buds - and they're not deficient in P either.i don't agree with the statement on phos. i beleive that's exactly what is wrong, as even strains with genetically purple stems do not show much more than purple freckles if fed properly.
If his ph is within the correct range as he stated in his original post, how does he have a lockout? Are you now saying that the P deficiency is being caused by over-feeding?edit, i just saw your post. stop feeding with high p, you have a lockout.
most times, when fertilizers are overused, a salt buildup occurs, which alters the soil ph, and causes lockouts. i have seen this most with bloom nutes. over using p resulting in a lockout of p. a defficiency caused by nutrient lockout.imo, it's nothing to seriously worry about.