W10.Day.1(68)
โโToday, I missed a sure chance to lose Jessica. I got tired of the swings with pH and TDS, and decided to flush the soil totally with my new pump. This process took about 8 hours and required around 35 liters of spring water with adjusted pH! The TDS at the entrance was 60, while the first liters of flushing showed +1900 TDS. After a very long and persistent flushing, I managed to settle at pH +0.1 and TDS +200. It was a very challenging evening. However, it was more than worth it!
W10.Day.2(69)
โโStarted using my new pump for irrigation.
โโToday, I additionally flushed the soil with 15 liters of targeted fertilizers. The pH stabilized, as did the TDS. It was very exhaustingโ11 hours of time and 50 liters of fluids. Never use baking soda to fix the pH.
โโRemoved a row of fan leaves that were most affected by thermic chemical burnsโcleared the path for light to reach the lower, healthier leaves. Uncovered a number of hidden buds. Raised the lights to its maximum height.
W10.Day.4(71)
โโThe pH of the drainage water rose above 7 again, and I flushed the soil with 50(!!!) liters of fertilizer, stabilizing it to 6.8.
W10.Day.5(72)
โโDrainage test in the morning show 6.9 and i washed again with 30 liters of fertilizers to 6.7. For now, switched nutrition plan to AN standard and fix in water ph to 5.7.
W10.Day.7(74)
โโOn the burn-damaged leaves of the main colas, orange trichomes begin to appear. However, I don't focus on themโI only observe the trichomes on the healthy areas of the buds.
โโWeek's Summary:
โโโโ- Mastered the Zen of soil flushing
โโโโ- Couldn't wash out the elevated pH from the soilโpreparing a watering solution with pH adjustment to 5.7
โโโโ- Started using a pump for irrigation
โโโโ- The smell is very intense, thick, and resinous.
โโโโ- Finally figured out to change the lighting for the shots and saw snowy fir trees ๐ฒ
I like the craftiness ๐! I have made good experiences with Scr.o.G ing and lights under the canopy. Would only add them in flower though, I had added somewhere around 90w at 30 cm distance on a lollipopped plant. No fluff or popcorn buds anywhere to be found.
@MyDearDiary, always a pleasure, but again, itโs mostly about the individuals preferences. I just wanted to highlight to you that from my perspective there should be no issues to start carefully removing old leaves, without worrying that youโll stunt your plant. The more you grow the better youโll be able to read your plants. Seems like the curiosity is there already ;) any other questions, you can always DM me directly, if I can, Iโm always happy to help.
@Salokin, Thank you very much for this article
It seems that in a home setting, it's quite challenging to determine the photosynthetic activity of leaves and identify the moment it decreases. Making such decisions should be based on experience and the age of the plant and its individual leaves. I would be happy to conduct a series of studies.
Is there a university somewhere that studies marijuana growth? ๐
@MyDearDiary, hey growmie, I read this a while back, which was studied on sativa plants and their leaf photosynthesis rate with age
โ Compared with the maximum estimated y-intercept value, Amax and Rd decreased by 50% and 75% after approximately 9 and 28 days (Figure 1 and Figure 2). Similarly, Ls and ฯCO2 decreased by 50% and 75% after approximately 8 and 22 days. Although photosynthetic capacity declined steadily after leaf full expansion, we note that the compensatory metabolic activity of Rd decreased.โ
Full paper here https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7076434/
A wouldnโt deny that a mature leaf has a higher photosynthesis rate, however, as soon as maturity is reached the rate will go down, but also their metabolic consumption.
what is nice colour for your eyes, maybe far away from spectrum plant needs.
What ever cool leds you would use, they still heat up, that will play up with plant, because they touch each other.
output of such strip will make maybe brighter for your eye, but wont bring any countable result. through all strip its 10-15 W maybe, so what it brings ??? plus spectrum ;)))
i thought its one of photo contest attemps, but by your description - you are serious with it.
Hope it will work for you, but by pure math and facts - it should not.
All the Best !
@AsNoriu, The issue of temperature is not a concern for me, as I regularly use an infrared thermometer and make sure everything is within acceptable limits. Besides, the garland doesn't operate throughout the entire light day.
I treat this as a fun experiment.