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I grow following Dr. Bruce Bugbee + Daniel’s Science in Hydroponics + GreenGene videos, along with My Notes from OG.
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My grows are now summarized and indexed in a single-post thread.
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Here ill just include articles, podcasts, pics, and other spam I find interesting.
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if you have any science or experimental content (video/pic etc) please post it without asking permission, it will always be welcomed.
method:
Grow in a sphagnum peat + coarse vermiculite medium, lightly amended with gypsum and dolomitic lime (peat can be substituted with pre-buffed Coco Coir), and feed a general purpose fertilizer like Peter’s 20-10-20 Peat Special at 1.3 EC throughout the entire grow (in flowering phosphorous may be increased up to 50mg/L.).
Note: the medium was updated for an online course to: 75% peat, 13% vermiculite, 12% rice hulls, 0.7kg/m3 wetting agent, 1kg/m3 wollastonite, and 1.3kg/m3 hydrated lime.
Layout:
12/12 Space (3 x 3):
20/4 Space (2.5 x 2.5):
Lights:
3 Chilled/Growmau5 Puck V2 (300W LM301b) - (12/12 Space)
2 Chilled Puck V4 (200W LM301b) - (12/12 Space)
1 Atreum (100W LM301b) and
1 Viparspectra (100W LM301b) - (20/4 Space)
Vent:
AC Infinity Raxial S6 (no carbon filter) for photos
iPower 175 cfm (no carbon filter) for autos
Medium:
40% PEAT
40% VERMICULITE
20% PERLITE (my vermiculite is not as coarse as needed, so I add 10-20% perlite for aeration)
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Dolomitic Lime at 40g per 28.3L of medium and
Gypsum at 10g per 28.3L of medium
Fertilizer:
Veg: 20-10-20 Peter’s Peat Lite Special (6g per 10L tap - through out the grow)
1.2 - 1.3 EC
Flower: 20-10-20 Peter’s Peat Lite Special at 1.3 EC + Monopotassium phosphate (MKP)
Ideal values:
For veg: (these are all mg/L). N- 120, P- 30, K- 129, Ca- 50, Mg- 17, S- 21, Si- 8, Fe- 1, B- 0.40, Mn- 0.32, Zn- 0.32, Cu- 1, Cl- 1, Mo- 0.06. For flower increase P up to 50mg/L.
Tap Water PPM - 120
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Added
-3ml of Calimagic
-very light dose Armor SI 1 ml per 10 L - start 2 weeks after sow.
-50ml of fresh coconut water per Liter after transplanting.
-Phosphoric Acid as PH down.
-Monopotassium phosphate (MKP) to increase P in flower (up to 50mg/L) -
PH low 6 (i measure with strips)
VPD:
Target Values:
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In Veg: .05 to 1
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In Flower: .08 to 1.4
