W9.Day.1(61)
โThere is a minor nutrient issue - the tips of the leaves are burning due to excess fertilizers. The drainage water test showed a slight acidification of the soil with an increase in TDS by +500 and a decrease in pH by -0.2. To remedy this, I diluted the prepared fertilizers with spring water, reducing the nutrient level from 1300 to 800 TDS. After one day of this regimen, the drainage water indicators dropped to TDS +200 and pH -0.1. The plant is drinking well. We'll stick with this scheme for a couple of days and see whether to revert back or not.
W9.Day.3(63)
โShe started drinking poorly, and I decided to take a radical approach to the problem of excess phosphorus and potassium and a lack of magnesium and calcium - I completely removed phosphorus and potassium from the watering. Jessica responded to me with such blooming that the scent became very, very strong.
W9.Day.4(64)
โSwitched to the new scheme. More Calcium and Magnesium, less Phosphorus and Potassium. Drinks very well. Smells - insane. Picks up very very high at this age (already tasted low bud๐ ). There are more nutrient burn on the tips, but i think all shall be ok.
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.