Yellowing leaves while flowering? Correct the problem with a high N food.

[Old Uncle Ben]

9/10 people here are not farmers; clearly but mocking & condescension isn’t a good way to lead them towards betterment IMO

Perhaps impart some your knowledge in a more humble way; while also being open minded to others & their attributes - I promise you there’s people here whom can even teach an ornery old dog a few new tricks - and others whom would appreciate your knowledge much more if delivered in a more respectable way

You attract more flies with honey….type a deal

Peace UB

Been doing this forum thing, teaching, busting myths and bullshit for 25+ years, before there was the internet as we know it. PGP and secret encrypted server chain linking between growers was how we communicated. And you?

The elitist lecturers, the chest beaters, the posers, is what makes me, or made me a long time ago jaded when it comes to cannabis forums. I just happen to say what others are afraid to say who know better.

I also consider organic purists wackos. sorry. It's a cult, a religion, feelings over facts with this group. You want some reality? Then spend some time here rather than cannabis forums - https://puyallup.wsu.edu/lcs/

What is organic fertilizer? - Garden Myths

Organic fertilizer. What is the real difference between organic and synthetic fertilizer? Why is organic fertilizer better for your plants?

www.gardenmyths.com

You express some of the wacko stuff you find here to a "normal" professional gardening group, say to vineyard managers/owners such as me and you'd be laughed right out the door.

I have not learned much if anything from cannabis forums in all these years because there is very little botanical principles embraced. I do science, period.

Stay green and healthy,
Uncle Ben

 

[Old Uncle Ben]

Tissue analysis tells very little.

Grapevine Nutrient Management: Petiole Sampling and Analysis

Grapevine nutrient status can be determined by three methods: Observing visual symptoms. Analyzing vine tissue samples. Performing soil tests. These methods should be performed regularly by scouting visual symptoms each season, analyzing tissue samples either annually or every...

ohioline.osu.edu

 

[Old Uncle Ben]

Chest beating aside, can I see a few links and pictures to back up the rhetoric around here?

Thank you,
UB

 

[wild cat]

Również uważam organicznych purystów za wariatów. Przepraszam. To kult, religia, uczucia ponad faktami z tą grupą.

Napiszę w ojczystym języku ponieważ translator który używam nie tłumaczy za dobrze. Nie rozumiem czemu tak uważasz i nawet nie chcę tego zrozumieć , być może Ty będziesz miał podobnie z moim tekstem. Ogrodnitwo organiczne to potęga, której nie jest w stanie zastąpić nic. To coś więcej niż grube topy i wybujała roślina. To smak, zapach, cała esencja z odpowiedniego medium którego efektem jest kwiat subtelny a czasami zabujczy i jesteś w stanie to wyczuć i opisać z większą wrażliwością. Użyj dobrego tłumacza. Pozdrawiam.

 

[revegeta666]

Napiszę w ojczystym języku ponieważ translator który używam nie tłumaczy za dobrze. Nie rozumiem czemu tak uważasz i nawet nie chcę tego zrozumieć , być może Ty będziesz miał podobnie z moim tekstem. Ogrodnitwo organiczne to potęga, której nie jest w stanie zastąpić nic. To coś więcej niż grube topy i wybujała roślina. To smak, zapach, cała esencja z odpowiedniego medium którego efektem jest kwiat subtelny a czasami zabujczy i jesteś w stanie to wyczuć i opisać z większą wrażliwością. Użyj dobrego tłumacza. Pozdrawiam.

Try this mate

translate polish english - Google Search

 

[Old Uncle Ben]

Going back to the core reason for this thread, we have a pic of a plant that we are told recovered from a lack of N. I look at it, and see no reason to suggest it now has too much.

Yes, that was the core reason for the thread. I was trying to make a point to those who watch as their plants continue to lose leaves prematurely because they keep on abusing them with bloom foods. Again, they are so brainwashed into this absurd internet driven mindset that they can't correct.

This plant has perfect color in every respect for a pure indica. Indicas have very dark green leaves as a rule. It's just what they do. You lose chlorophyll which is at the core of producing your precious terpenes and cannabanoid production and ya done screwed the pooch.

Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.

Chlorophyll

Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis.

education.nationalgeographic.org

Simple botany, no hype,
UB

 

[piper]

Still is, like I said the backcross of the original Cinderella99 I grew 20 or so years ago looked like clones. I germed 5 from that OLD backcross, all popped, got 4 females, one male. Did another backcross in 2020 from those. As luck would have it they all got a bad case of spider mites in the greenhouse which totally screwed up the quality. Of all pests that attack cannabis I think mites are the worse. If your leaves start getting that white mottled look, tiny white pits, you got mites.

View attachment 18839743

View attachment 18839737


View attachment 18839738

I run a blueberry spacequeen given to me by a buddy at at different forum who passed away recently R.I.P oldskool830 not as good as cindy by herself, but really good I need some cindy

 

[piper]

Napiszę w ojczystym języku ponieważ translator który używam nie tłumaczy za dobrze. Nie rozumiem czemu tak uważasz i nawet nie chcę tego zrozumieć , być może Ty będziesz miał podobnie z moim tekstem. Ogrodnitwo organiczne to potęga, której nie jest w stanie zastąpić nic. To coś więcej niż grube topy i wybujała roślina. To smak, zapach, cała esencja z odpowiedniego medium którego efektem jest kwiat subtelny a czasami zabujczy i jesteś w stanie to wyczuć i opisać z większą wrażliwością. Użyj dobrego tłumacza. Pozdrawiam.

I write in my native language because the translator I use does not translate very well. I do not understand why you think so and I do not even want to understand it , perhaps you will have the same with my text. Organic gardening is a power that nothing can replace. It is more than thick tops and exuberant plant. It's the taste, the smell, the whole essence from the right medium whose result is a flower that is subtle and sometimes exuberant, and you are able to sense and describe it with greater sensitivity. Use a good translator. Greetings.

 

[piper]

I know nothing about anything

I know my jacks 20-20-20 has worked excellent from start to finish from the mid 70's till this day May 9th 2023

everyone grows different

May the bong gods be with you !

stay lit ...

 

[piper]

My Maui Mango Haze with jacks 20-20-20

 

[Tomatoesonly]

I also consider organic purists wackos. sorry. It's a cult, a religion, feelings over facts with this group. You want some reality? Then spend some time here rather than cannabis forums - https://puyallup.wsu.edu/lcs/



Stay green and healthy,
Uncle Ben

Woah... that's quite the link. Gonna take some serious time to go through all those articles. Thank you!!

 

[Old Uncle Ben]

Color and leaves are holding great - today's shot. Pistils are pretty short, not that it matters, just saying.

Man, does this one stink!

Hit it a couple of times with a little Dyna-Gro Bloom (3-12-6) and a pinch of potassium sulfate per gallon to see if they're is anything to write home about. https://dyna-gro.com/product/liquid-bloom/ Still working on a gallon of Bloom that I probably bought about 10 years ago. Comes complete with chunks that have settled out.

Grow hard,
Uncle Ben

 

[Hiddenjems]

Yes, that was the core reason for the thread. I was trying to make a point to those who watch as their plants continue to lose leaves prematurely because they keep on abusing them with bloom foods. Again, they are so brainwashed into this absurd internet driven mindset that they can't correct.

This plant has perfect color in every respect for a pure indica. Indicas have very dark green leaves as a rule. It's just what they do. You lose chlorophyll which is at the core of producing your precious terpenes and cannabanoid production and ya done screwed the pooch.

Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.

Chlorophyll

Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis.

education.nationalgeographic.org

Simple botany, no hype,
UB

There is a crossover point at a certain light intensity where a leaf is actually drawing nutrients from the rest of the plant.

Also, growing inside is vastly different than outdoors in how the plant needs pruned. Light intensity follows an inverse square law. Outdoors, the bottom of the plant is basically the same distance from the sun as the top. However, indoors the bottom of the plant can be 2-3x farther from the light source than the top.

This is why you strip the bottom growth of an indoor plant.

 

[Old Uncle Ben]

This is why you strip the bottom growth of an indoor plant.

No I don't. Never have, never will on anything whether it be cannabis, a peach tree or an avocado tree. Here's some Reed avocados (you SoCal guys know this one!) hanging near the ground. They are shaded.

My avatar - notice the big buds on this Posi. Jack Herer near the bottom? This (non butchered) plant was crammed into a confined indoor space with no decent light reaching the bottom. Collection of buds are white because of the flash from the ancient Polaroid camera we used back in the day.

Again, you guys are not getting it. The carbos produced are NOT localized. They are transferred throughout the plant top to bottom via the phloem. The phloem is the tissue that is responsible for the distribution of products made during photosynthesis.

The reason why you have "larf" at the bottom is based on a hormonal response called apical dominance. Auxins tend to collect and drive tissue production at the top of the plant. They will tend to get resources first.

Apical dominance means that the growing apex of a plant controls the quiescence of buds sitting in lower positions along a shoot. This kind of bud inhibition is termed 'correlative inhibition'. Correlative inhibition usually has a gradient: the lower on the shoot, the stronger the inhibition.

https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/apical-dominance

Uncle Ben

 

[Old Uncle Ben]

There is a crossover point at a certain light intensity where a leaf is actually drawing nutrients from the rest of the plant.

Link please?

Uncle Ben

 

[Hiddenjems]

Link please?

Uncle Ben

It’s jr high math and science.

Do you have a light meter to collect data?

Inverse-square law - Wikipedia

en.m.wikipedia.org

 

[Old Uncle Ben]

It’s jr high math and science.

Do you have a light meter to collect data?

Inverse-square law - Wikipedia

en.m.wikipedia.org

Fully aware of the inverse law.

Again, I asked for info regarding your statement - "There is a crossover point at a certain light intensity where a leaf is actually drawing nutrients from the rest of the plant."

^ That's a new one on me.

Been using a GE light meter for decades. Let me see if I have an OLD post on HID's foot candle readings.

Found it! Took these readings about 22 years ago on 2 lamps I had.

DISTANCE FROM LIGHT............F.C. READING

.......................250W HPS...........600W HPS

Within 6" (Way off 10K f.c. scale, for both lamps)

6".......................10,000...............10K+

8".......................7,100.................10K+

12"......................4,800................8,700

18"......................2,800................5,600

24"......................2,000................4,200

30"......................1,400................3,300

Frame of reference: sun = 9,500 - 11,000 average, clear day;

Cool White fluor measured 2" from bulb = 1,200

Enjoy,
Uncle Ben

 

[Tomatoesonly]

Fully aware of the inverse law.

Again, I asked for info regarding your statement - "There is a crossover point at a certain light intensity where a leaf is actually drawing nutrients from the rest of the plant."

^ That's a new one on me.

I seen the info he's talking about, I just can't remember where. It was either a nutrient thread or more than likely a defoliation vs no defoliation thread. I'll update if I find it.

I don't' think I'll ever find that tidbit of info again. The one key, if anyone can do some better searching, was that if a leaf gets less than 200 umol's, it doesn't' contribute to the plant. It may have been a Youtube video??!!??
Also here's this.... from Bugbee on defoliation.

 

[Hiddenjems]

I think it may have been in a bugbee lecture.

However anyone who’s grown under lights with untrimmed plants has seen lower leaves die off from lack of light.


I’ve been monocropping the same clone for almost 7 years now in every high yield method there is. It produces the highest yield of a class bud by topping one time and stripping the bottom 1/3-1/2 during the first week of flower. I may remove a handful of leaves during flower as they die.

I have other cuts that grow very open vine like plants with lots of internodal length and very few leaves. They require minimal pruning if any at all to produce 100% class a bud and no larf.

 

[Old Uncle Ben]

Thanks