W7.Day.1(47) The soil is still contaminated, and I have to adjust the pH by 0.7. The poisoning occurred at the very beginning of the flowering stage, and there's a chance that the sodium will be flushed out soon.
W7.Day.2(48) She is feeling better. Soil toxicity decreased from +0.8 pH and +600 TDS to +0.6 pH and +100 TDS.
W7.Day.3(49) She is fine. But i'm figuring out why drainage water ph changing during the day with same source.
W7.Day.4(50) The buds are actively growing. The soil pH is becoming more stable (+0.7 pH = +0.5 pH, TDS +100). Added phosphorus and potassium through Big Bud.
W7.Day.5(51) Removed B-52 from feeding scheme. Soil toxicity was eliminated.
W7.Day.6(52) To ensure that the issue with the soil and fertilizers is resolved, I trimmed the yellow tips on the leaves of one of the plants. If yellowing appears, the problem still exists.
With the light from below, the lower plants are developing significantly more actively (compared to my previous grow).
I also realized that the upper part of the tower is unnecessary. It currently only creates additional shade and doesn't allow the flowers to fully spread their leaves. I've dismantled the upper part; now I just need to figure out what to do with the LEDs.
W7.Day.7(53) She is fine and actively grow it's buds.
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.