As we move into week 5, we're keeping a close eye on plant #2, which is showing some different characteristics than plant #1, namely, nutrient deficiencies.
We seem to be dealing with it okay so far, having reduced the nitrogen input and increased the calcium and magnesium. I think these girls are anxious for some phosphorous and potassium but we're being cautious and will be feeding under 400ppm, starting tomorrow.
Day 29:
- increased HLG Elite 360 fixture's light intensity, from 65% to 70%.
- minor LST adjustments and some leaf tucking to both plants.
- installed reciprocating fan at top of tent, blowing fresh intake air across the light fixture and down to the plants.
Day 30:
- watered with a 500ppm nutrient solution, 4ml per gallon of Remo Nutrients' Flowering line, but with General Hydroponics' "CaliMagic" replacing Remo's "MagNifiCal", due to the lower Nitrogen content.
- pH'd to 6.2/6.3
- minor LST adjustments
Day 31:
- calcium deficiency is showing up more on plant #2. Is there PK deficiencies as well? I'll continue feeding cal-mag and flowering nutes this week but i need to do a runoff test, and/or maybe a slurry test.
Day 32:
- watered with a 270ppm solution of "CaliMagic" (Cal/Mag).
- pH'd to 6.4
- slurry test done with 100ml of soil and 200ml of distilled water at pH7.0. Tested slurry after 5 minutes, had a pH of 6.1.
Day 33:
- Plant 2 still showing a severe deficiency, which i assume is still calcium & magnesium, although the stems of the leaves are very purple and despite the genetics, i think this is indicative of deficiency issues as well.
- Oddly, Plant 1 is not showing the same issues.
Day 34:
- did some light defoliation, removing a few small, lower shoots from the lower branches and a few of the lowest fan leaves.
- increased HLG "Elite 360" fixture intensity from 75% to 80% (approx. 145 watts per each QB96 board).
- Temp: 78F (lights on); 62-66F (lights off)
- RH: 46-55% (lights on); 60-62% (lights off)