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I am running GCD Auto for the third time now. 3 plants in a 60cmx60cm tent. They are always reliable, yield well and are stress resistant. They do not need alot of nutrients either. I use basic Lightmixx and just add some organic nutrients when they start to flower. I added some worm castings at the beginning of flowering as well for the first time this grow, worked well.
In 10l or 12l pots they reach around 80cm to 100cm in height consistently under 18/6 lights.
- almost there, just flushing with water for another week
- waiting for the purple fade to reach the bottom leaves
- already harvested the smaller ones, looks like a decent harvest
- look at those stems, one of them just looped
Very smooth smoke. Berry and sugary smell and flavors. Good yields. Not too much frost, but after curing it has a really nice bag appeal. I had the best yields with no training or topping, but repeated defoliation when needed. You stunt the growth potential otherwise. The plants and buds can get quite leafy, but do not really get stressed even with heavy defoliation. Overall very easy to grow and a good yielder.
- P1 69.5g dry. This was the smallest plant... pretty happy with that
- looks larfy on the pics, but most are pretty firm buds + lazy trimming
- strawberry smell, cocolate, cacao, no citrus
- below par frosting imo, but the other plants look more frosty.
- smoked a small one before curing. It packs a punch.
- P3 54.5g dry. This was the smaller one of the two "Sativa" Phenotypes. It got fertilizer burned in the 6th weeek of flowering, the growth got a little stunted there.
- This is better quality bud, than p1.
- strong strawberry, sweet smell
- nice frost, not crazy, though.
- Also smoked a small one while trimming. It also packs a punch, lets see after curing, should improve a lot
- P2 75g dry. Had some bud rot on one of the top colas to cut out. It was a little cold at night, I guess. Lesson learned.
- Much more frost.
- Strawberry and Citrus smell
- packs a punch
Overall I am very satisfied with the yield for the 60x60 tent. 2g / w.
I had better quality bud from the same strain in the past, but nowhere close to the yield. Again, the quality is great, but I prefer more frost and complex terpine profiles.
I used 18 / 6 light cycle for the entire grow. I think it was too cold at night. Temps when down to 12-15 for a couple of weeks and were maybe not warm enough with 21-22 Celsius during the day.
Usually I just blast them 24 hours with light, but energy got expensive. This is really the only thing that I changed compared to earlier grows.
This is what I use for nutrients:
Soil: Lightmixx + 5% Worm Castings
During veg: Gut & Günstig Universaldünger (its 4-1-2, close enough, reactive use, around 300-500ppm every 3rd watering from week 3)
During flowering: Alternate between "Omas Gemüseglück(worm castings tea)" and "Bio Bloom" for the first 8 weeks of flowering (500-1000ppm ramping up)