Deficiency or over doing it?

AANDMFARMS · Dec 13, 2021

Hi All,
1st coco grow having some issues trying to figure out what deficiency or over watering / feeding. 1 gallon fabric pot day 38. Sour Diesel by ilgm. Mix gallon RO (0ppm) to start add 3mls protekt, 3mls calimagic,3mls each canna coco a & b, cannazym 3mls ppm 510. Ph 5.8 Add 1.5 mls orca liquid mycorrhizae. . Feed between 250-400 mls to achieve 15-20% run off. Feed each day once a day. Temps fluctuate 66-78. Rh 50-60%. Ec Run off when feeding is 230. 150 led full spectrum. Light is 30 inches away. Can someone please help. Thanks in advance. To me edges of tips upper leaves are dark new growth does look like it might be coming out same way. Canna coco professional plus no par or vod meter.

mysticepipedon · Dec 13, 2021

Looks like a bit of a magnesium deficiency.

AANDMFARMS · Dec 13, 2021

mysticepipedon said:
Looks like a bit of a magnesium deficiency.

Ok thank you for your time.

Custom45 · Dec 13, 2021

Hi, I'm a newbie grower so interested in posts like these. Obviously not doubting you at all mysticepipedon, but from the pics what makes you say mag deficiency?

mysticepipedon · Dec 14, 2021

Custom45 said:
Hi, I'm a newbie grower so interested in posts like these. Obviously not doubting you at all mysticepipedon, but from the pics what makes you say mag deficiency?

On the first and third pic you can see slight chlorosis between the veins of some of the leaves.

This is only slight.

Custom45 · Dec 14, 2021

Thanks. I'm always keen to learn how to read a plant and understand what it needs.

AANDMFARMS · Dec 14, 2021

mysticepipedon said:
On the first and third pic you can see slight chlorosis between the veins of some of the leaves.

This is only slight.

Thanks for the explanation.

mysticepipedon · Dec 14, 2021

Certain deficiency symptoms, like magnesium (Mg), nitrogen (N) and potassium (K), you will see again and again, because they are so common.

If it's not an obvious one that you've seen before, start thinking about things in a step-wise manner:

1. What part of the plant is showing the symptom? Is it a growing point or mature leaves? If it is a growing point, the problem is an immobile nutrient in the plant. If it's a lower leaf, the problem is a mobile nutrient in the plant. ("In the plant" as opposed to "in the soil.")
2. Is your pH in the right range for your media/method of growing? If not, the nutrient might be in the soil, but it's not in a form the plant can take up. Adjusting the pH can make the nutrient more soluble and plant-available.
3. Is there any reason to believe an interaction with another nutrient is causing lockout? The reason could be that you just recently added a lot of calcium (Ca), phosphorus (P) or N. Look at the Mulders Chart to get a handle on possible nutrient interactions.

Mobile nutrients include N, P, K, and Mg. These show up on lower leaves.

Immobile nutrients include Sulfur (S) — though some texts say it's mobile, Ca (though sometimes it's a little mobile), and just about all the micronutrients (the metals, like iron, manganese, copper, zinc, nickel). These show up on growing points.

Deficiency symptoms on lower leaves never go away when you fix the problem, so don't expect it. Deficiency symptoms at growing points usually do go away when you fix the problem.

4. Once you know whether it's a mobile or immobile nutrient, look at the assorted charts and pictures of the specific symptoms in a google search.

5. Sacrifice a goat* at an alter in front of your tent to let the plants know that you are on the case and searching for guidance.

*Two chickens and a hamster can substitute for a goat.

FuriousStyles · Dec 14, 2021

mysticepipedon said:
Certain deficiency symptoms, like magnesium (Mg), nitrogen (N) and potassium (K), you will see again and again, because they are so common.

If it's not an obvious one that you've seen before, start thinking about things in a step-wise manner:

1. What part of the plant is showing the symptom? Is it a growing point or mature leaves? If it is a growing point, the problem is an immobile nutrient in the plant. If it's a lower leaf, the problem is a mobile nutrient in the plant. ("In the plant" as opposed to "in the soil.")
2. Is your pH in the right range for your media/method of growing? If not, the nutrient might be in the soil, but it's not in a form the plant can take up. Adjusting the pH can make the nutrient more soluble and plant-available.
3. Is there any reason to believe an interaction with another nutrient is causing lockout? The reason could be that you just recently added a lot of calcium (Ca), phosphorus (P) or N. Look at the Mulders Chart to get a handle on possible nutrient interactions.

View attachment 1196968
Mobile nutrients include N, P, K, and Mg. These show up on lower leaves.

Immobile nutrients include Sulfur (S) — though some texts say it's mobile, Ca (though sometimes it's a little mobile), and just about all the micronutrients (the metals, like iron, manganese, copper, zinc, nickel). These show up on growing points.

Deficiency symptoms on lower leaves never go away when you fix the problem, so don't expect it. Deficiency symptoms at growing points usually do go away when you fix the problem.

4. Once you know whether it's a mobile or immobile nutrient, look at the assorted charts and pictures of the specific symptoms in a google search.

5. Sacrifice a goat* at an alter in front of your tent to let the plants know that you are on the case and searching for guidance.

*Two chickens and a hamster can substitute for a goat.

@mysticepipedon can you please post this chart in a separate thread so maybe just maybe it would get sticky'd by a mod. That is if it has not been already.

AANDMFARMS · Dec 14, 2021

mysticepipedon said:
Certain deficiency symptoms, like magnesium (Mg), nitrogen (N) and potassium (K), you will see again and again, because they are so common.

If it's not an obvious one that you've seen before, start thinking about things in a step-wise manner:

1. What part of the plant is showing the symptom? Is it a growing point or mature leaves? If it is a growing point, the problem is an immobile nutrient in the plant. If it's a lower leaf, the problem is a mobile nutrient in the plant. ("In the plant" as opposed to "in the soil.")
2. Is your pH in the right range for your media/method of growing? If not, the nutrient might be in the soil, but it's not in a form the plant can take up. Adjusting the pH can make the nutrient more soluble and plant-available.
3. Is there any reason to believe an interaction with another nutrient is causing lockout? The reason could be that you just recently added a lot of calcium (Ca), phosphorus (P) or N. Look at the Mulders Chart to get a handle on possible nutrient interactions.

View attachment 1196968
Mobile nutrients include N, P, K, and Mg. These show up on lower leaves.

Immobile nutrients include Sulfur (S) — though some texts say it's mobile, Ca (though sometimes it's a little mobile), and just about all the micronutrients (the metals, like iron, manganese, copper, zinc, nickel). These show up on growing points.

Deficiency symptoms on lower leaves never go away when you fix the problem, so don't expect it. Deficiency symptoms at growing points usually do go away when you fix the problem.

4. Once you know whether it's a mobile or immobile nutrient, look at the assorted charts and pictures of the specific symptoms in a google search.

5. Sacrifice a goat* at an alter in front of your tent to let the plants know that you are on the case and searching for guidance.

*Two chickens and a hamster can substitute for a goat.

Great information thanks again.

mysticepipedon · Dec 15, 2021

FuriousStyles said:
@mysticepipedon can you please post this chart in a separate thread so maybe just maybe it would get sticky'd by a mod. That is if it has not been already.

That's a Mulders chart. You can find them by googling it.

dextr0 · Dec 19, 2021

FuriousStyles said:
@mysticepipedon can you please post this chart in a separate thread so maybe just maybe it would get sticky'd by a mod. That is if it has not been already.

Cannabis Infirmary

Get help identifying plant problems, symptoms, pests, disease, stress, and other cultivation issues. Include photos and grow details for better answers.

www.thcfarmer.com

Seamaidens “The Charts”....she was always on it when it came to deficiencies.

FuriousStyles · Dec 20, 2021

dextr0 said:
Cannabis Infirmary

Get help identifying plant problems, symptoms, pests, disease, stress, and other cultivation issues. Include photos and grow details for better answers.

www.thcfarmer.com

Seamaidens “The Charts”....she was always on it when it came to deficiencies.

Wealth of knowledge for free.

RavynJax · Dec 20, 2021

Add 3/4 Tablespoon of Epsom Salt (100% Magnesium) (Make sure it's unscented) to each gallon of water! Do not feed Magnesium for the first 2 weeks when switching to bloom.

D_G · Dec 26, 2021

Can you start watering multiple times a day? That gives them fuckton of more nutes

Deficiency or over doing it?

Deficiency or over doing it?

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