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MaryJaneUSA started grow question 3 years ago
Do you guys usually bring the ppm down towards the end? I have issues with nute burn and something that represents cal mag def looking, every time I get to the mid-to-end flowering.
MJ grows Sticky Zkittlez Glue
14 weeks
MJ grows Sticky Zkittlez Glue MaryJaneUSA
Sticky Zkittlez Glue
45 comments · 3 years ago
Week 11
Techniques. Defoliation
Removed answered grow question 3 years ago
By the look of your pictures, you already have Nitrogen toxicity (dark green leaves), you should cut back on the grow nutrients. Your cal mag dose is good enough and even a little on the high side, so I think what you experience is not exactly calcium or magnesium deficiency but lockout. Calcium and magnesium are locked out when there's an excess of phosphorous and / or potassium. The burnt tips on leaves support the theory that you are over feeding your plant.
mad_scientist answered grow question 3 years ago
Hello @MMJMD . All i see here is some burned tips and not any cal/mag deficiency. Just cut off a little bit the nitrogen. You are going just fine. Happy growing ! :facepunch:
The_Projexx answered grow question 3 years ago
So basically what I see here is a little bit of N toxicity nothing crazy and nothing that will hurt your plant , I wouldn't cut the strength of the nutrients down but rather do it every second watering instead . When your pumping all those nutes into the medium your plant cant absorb all of it all the time so essentially what will happen is your end up just piling nutes on top of nutes until eventually you get root/nute burns . In your case its very very mild and is very easily treatable you just need to feed them less nutrients and more PH corrected water . The reason I use PH corrected water is that that your lady's don't go into shock stunting their growth for a few days , in veg no so bad in flower causes mega stresses that are unneeded . If you feel like your running into CalMg problems in the middle of flower I would just do 2ML per litre of nutrient solution you have mixed up this will prevent the the purple of your stems . I would also advise that you do a CONTROLLED foliar spray with your CalMg solution I would spray were the least amount of bud site is this way your plant can absorb it through the leaves . I would only do this at NIGHT time because you dont want your leaves to get covered in a gross film and only do it every 5-6 days . This will put a quick end to that CalMg deff you feel you might be having . I hope this information helps you a little bit ! -Happy growing !