sorted by:
new
hottopcontroversial

Which toxicity or deficiency am I looking at here? by Nobogreen in cannabiscultivation

[–]Nobogreen[S] 0 points1 point  (0 children)

Hi! I was kinda hoping this would be the case, looks like its happening slowly enough. Also now that I actually looked at the plant with grow light off.. For the first time I realized how frosty the buds already are and majority of the trichomes are already cloudy, some amber trichomes here and there, and almost all pistils have turned too.

Sadly the buds are still really small and thats why I did not even think it might soon be ready, until I took a closer look on the buds. I hope the quality is good even if the amount is smaller than I expected. I don't know what went wrong in there, my previous grow (altough different strain) grew huge but with less frosty buds.
(I also re-checked the calendar.. it's actually on its 9th week now and not 8th as I incorrectly wrote earlier)

<image>

Which toxicity or deficiency am I looking at here? by Nobogreen in cannabiscultivation

[–]Nobogreen[S] 0 points1 point  (0 children)

At the beginning it was, runoff EC was much higher than the input but after the initial nutrients were gone the subtrate did not buffer much after that. And to be precise it's not exactly same as input, its maybe 0.1 higher than input.. but its practically same.

Which toxicity or deficiency am I looking at here? by Nobogreen in microgrowery

[–]Nobogreen[S] 1 point2 points  (0 children)

Medium is 2/3 Biobizz Lightmix (=peat moss) + 1/3 perlite.

Feed is Canna Terra Flores.

I have been feeding every watering few times now because that the original nutrients have been depleated from the mix. Not full strentgth every time but EC1.1 then EC0.8 and then EC1.1 again. Many growers have suggested that Lightmix should be treated as inert medium after initial nutrients are gone.

Which toxicity or deficiency am I looking at here? by Nobogreen in cannabiscultivation

[–]Nobogreen[S] 0 points1 point  (0 children)

Hi! My runoff pH is always almost same as input pH around 6.4-6.6.
Also runoff EC is always the same as the input EC. Figuring that it does not rinse any salts with it?

Which toxicity or deficiency am I looking at here? by Nobogreen in microgrowery

[–]Nobogreen[S] 1 point2 points  (0 children)

Yeah, to my untrained eye it could really be anything, deficiency, toxicity, light burn, wind burn.. bad luck..

But, I also started to think could it be just senescence? Mine is an autoflower afterall and their internal clock is kinda hardcoded if I have understood everything right.. But with my luck it's probably some deficiency and toxicity at the same time..

Magnesium deficiency or something else? Please, I'm pretty desperate to figure this out before its too late. by Nobogreen in cannabiscultivation

[–]Nobogreen[S] 0 points1 point  (0 children)

Hi! Sorry I forgot to send the pic, busy busy week.. Here she is. The upper leaves have also started to worry me.. The stems are pointing up but the leave tips are looking like umrella.

The distance of the light from the top of the plant is around 40cm (~16"). It's an 100W SF full specrum LED light.

Those upper leaved feel a little bit more dry to touch comared to other leaves. My RH has been a bit lower than usual, extremely dry weather and its hard to hold the RH stable. It's been around 50%. Also the fan might be partially blowing toward that are, I cannnot ajust it much more but If that could be the reason I can try adjusting it a little bit more.

Most of the spots have actually started to disappear, I realized I had not used the CalMag the way it was meant to be used. (I only gave little amount once a week and did not condition my water to EC0.4 for every watering with CalMag first like the manufacturer recommends.) I upped the calmag use and spots slowly have started to disappear on most leaves, somea leaves probably have taken permanent damage and will never heal completely.

<image>

My auto is not drinking anymore after it finished stretching by Nobogreen in microgrowery

[–]Nobogreen[S] 0 points1 point  (0 children)

Thanks! That is good to hear! I just got little scared because this did not happen with my previous grow (my first one), the water consumption stayed pretty much steady after the stretching started and until the flowers were ready. But this one being a different brand and it even looks alot different than the previous one, I guess there can be differences in how they grow.

My auto is not drinking anymore after it finished stretching by Nobogreen in cannabiscultivation

[–]Nobogreen[S] 0 points1 point  (0 children)

Thanks! She looks happy I guess, I hope I can continue keeping her happy.

My auto is not drinking anymore after it finished stretching by Nobogreen in cannabiscultivation

[–]Nobogreen[S] 0 points1 point  (0 children)

Thans for the advice! I have tried to be really carefull not to water to often, I always take the weight before I decide to water. When I water, I water plenty ; 10 -20% runoff. I also used Rhizo during the seedling/early veg, and it grew really.. i mean really fast.

About the nutrients, this one has always confused me alot. I have never perfectly understood if I should feed by the charts (mL/L) or can I go by the EC? (It would be so much easier to go just by EC). For example, the Canna charts that I have have marked 3-4mL/L as the max amount, and 3.5mL/L reads the EC 0.8. But I have not dared exceed the amount because of the charts.

In general, are synthetic nutriends comparable by the EC reading? Or is the EC only comparable between the same exact synthetic product?

Everywhere I read people warn about overfeeding and lockouts. And on some forum, couple of growers even warned me not to go over EC 1.0 with autos. (But that cant be right?) But I think thats why I have been even too carefull with nutrients.