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phosphorus and nitrogen deficiency
Michael1234started grow question 4 years ago
soil pH 7-7.5 I gave Canna Flores 1.1 ml / L,
I have nothing to reduce the PH
should I water it with more fertilizer or leave it until the end?
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sir_isOanswered grow question 4 years ago
Imo, I'd use a little citric acid/ascorbic acid/tartaric acid and perhaps some sugars.
The citric acid can aid nutrient uptake (particularly phosphorus), ascorbic acid (vitamin c) is also beneficial, tartaric acid is essentially a potassium source and sugars are well..sugars.
Lemon, lime, other sort of acidic fruit juices could be used too. I probably wouldn't use vinegar much (maybe balsamic vinegar or apple cider vinegar).
kushinatoranswered grow question 4 years ago
So late in flower that's probably phosphorous and calcium, not nitrogen. I have the same symptoms on my older plant, but worse. You can either start to give it water PHed to 6.2 or 6.2 with a lot of runoff or flush it until the soil is at 6.5. The yellow leaves won't go anywhere though.
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InspireMeanswered grow question 4 years ago
If it were me I'd flush with PH'd water to the desired PH. It could be due to salt/nutrient build up.
You can use things like lemon, vinegar to adjust the ph.
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