Hello to everyone.
I go with the data first:
Setup: indoor
Light: HPS 400W
Strain: RQS Northern Lights, clone
Medium and pot: Soil and 25L/6 gallons pot
Humidity and temp: sometimes a little dry but always at good parameters besides that
Plant stage: Bloom, week 3 day 6
Medical (lol) history: plant always had good health, except for a little yellowing of the tips on early veg, and been dealing with some gnats the last weeks.
Actual problem:
During week 3 of flowering i started to find brown spots on some leaves. First day where a few leaves, and by now are a little more than a few. I would say that at least in every cola i found a leaf with those spots.
Besides that, almost every other day i remove yellow/dead leaves from the bottom of the plant, but one day i removed like 20 leaves that where yellow: i just touched them and they would just fall.
I read a few guides and for my understanding it looks like calcium deficiency.
But doing some further reading and believing that those spots can be just a "detail" in the whole problem, i started to think that the plant just needs a little more food, specially N. This idea is based on how the rhytm of yellowing lower leaves scaled up quickly during flowering third week, and by seeing that newer leaves look a little bit more pale (although under the HPS is tricky to see).
Feeding schedule has been light since a little nutrient burn appeared on early veg.
I am using Hesi nutrients, never went higher than 3ml/L, maximum dose is 5ml/L.
Attached pintures are from the roots before transplanting from 10L/2gal pot to 25L/6gal, and the rest were took yesterday, day 6 of week 3 of flowering.
So, what would you say? Thanks in advance for the replys, and sorry if something is not so good written, been a long time not writing in english.
I go with the data first:
Setup: indoor
Light: HPS 400W
Strain: RQS Northern Lights, clone
Medium and pot: Soil and 25L/6 gallons pot
Humidity and temp: sometimes a little dry but always at good parameters besides that
Plant stage: Bloom, week 3 day 6
Medical (lol) history: plant always had good health, except for a little yellowing of the tips on early veg, and been dealing with some gnats the last weeks.
Actual problem:
During week 3 of flowering i started to find brown spots on some leaves. First day where a few leaves, and by now are a little more than a few. I would say that at least in every cola i found a leaf with those spots.
Besides that, almost every other day i remove yellow/dead leaves from the bottom of the plant, but one day i removed like 20 leaves that where yellow: i just touched them and they would just fall.
I read a few guides and for my understanding it looks like calcium deficiency.
But doing some further reading and believing that those spots can be just a "detail" in the whole problem, i started to think that the plant just needs a little more food, specially N. This idea is based on how the rhytm of yellowing lower leaves scaled up quickly during flowering third week, and by seeing that newer leaves look a little bit more pale (although under the HPS is tricky to see).
Feeding schedule has been light since a little nutrient burn appeared on early veg.
I am using Hesi nutrients, never went higher than 3ml/L, maximum dose is 5ml/L.
Attached pintures are from the roots before transplanting from 10L/2gal pot to 25L/6gal, and the rest were took yesterday, day 6 of week 3 of flowering.
So, what would you say? Thanks in advance for the replys, and sorry if something is not so good written, been a long time not writing in english.
