Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy

Accept

Recommended

Recommended

Grow QuestionsK deficiency?

K deficiency?

PeterSagestarted grow question 2 years ago

in the last pictures you can see what to me look like an early deficiency of K. Since she is in the first stages of flowering I would say that's the case, reading the literature online i noticed a lot of similarities, what do you think?

Solved

Feeding. Deficiences

like

Robertsanswered grow question 2 years ago

Yes you correct. She is wanting a lot of potassium and phosphorus. Might want to check what your soil ph is doing.

1 like

Complain

Selected By The Grower

GrowingGrannieanswered grow question 2 years ago

You're spot on.... and the fix is a bit complicated as you really need to figure out WHY you've got this deficiency... this is a good article to help you out... https://www.royalqueenseeds.com/blog-potassium-deficiency-in-cannabis-plants-a-how-to-guide-n671 Good luck!

1 like

Complain

Similar Grow Questions

Solved

LSD Auto BarneysFarm is showing nutrient deficiency. I need some help to get this girl unstressed.I'm using BioBizz LightMix with the BioTabs Starter Kit in 25L pots (prepared the medium from the beginning with 3 biotabs). I have three girls where 2 of them are running healthy, only the LSD Auto is making trouble. How can I fix the problem which you can see on the image?

Feeding. Deficiences

a month ago

4

3

Solved

Ph value is decreasing despite BioBizzUp I don´t get it I´m trying to increase the Ph value but it is permanently falling again to a value of 4,2. Any idea what could be the reason why my Ph adjustments (BioUp) are not taking effect in the soil. Additional question for SD: What to do with the brown leafes? Remove them?

Feeding. Deficiences

a month ago

8

Solved

Definecy or Overwatering or something other?Hello guys! I think somthing is going bad. I attach some photos from the problem and also attach a full watering note. In a nontrained plant the leaves is curling down. I also have a diarie from the growth. Can anybody help me to fix this problem? Thanks and big up.

Setup. Strain - Autoflowering

Feeding. Deficiences

2 months ago

1

6

Solved

some kind of deficiency?👋👋👋 is this some kind of deficiency?

Leaves. Curl down

Leaves. Other

Feeding. Deficiences

2 months ago

3

Solved

What does she need?What does she need? Should I give more cannabio bloom and water for here?

Feeding. Deficiences

3 months ago

5

5

Solved

phosphorus and boron anomaly Could someone please explain the precise mechanism underlying the phosphorus anomaly? As anticipated, availability decreases with increasing pH, yet it exhibits a sudden surge at pH 8.5. What is the exact (bio)chemical rationale behind this phenomenon? Boron has a similar pattern

Feeding. Chemical composition

Feeding. Deficiences

Feeding. Other

2 months ago

30

20

Solved

PALE LEAVES + YELLOWING + BLACK SPOTs Check the pictures OGS. 100% organic, water PH: 6:3 all along. Aloe/coconut + FF Big Bloom. I'm leaning towards a nutriment lock. I was able to correct another issue a couple of weeks ago with flushing. But still I need to feed them, it's too early for water only. What do you thi

Leaves. Dropping off

Leaves. Color - Pale

Feeding. Deficiences

3 months ago

3

2

Solved

I keep loosing leaves to some sort of nasty necrosis. It affects leaves at all levels, small and big randomly. I had to remove a lot of dying foliage At first it looks like a asymmetrical spot of leaf starting to thin out to lighter color then tissue dries and turn black. I have high runoff EC3.3 and I blame Easy boost pellets because I only add rootjuice 1ml/L and sugar royal 0.5ml/L to my water. What is it and how I fix it?

Leaves. Tips - Die

Leaves. Color - Black or grey

Feeding. Deficiences

3 months ago

5

5

Solved

Buon giorno weed doctors, did anyone have similar uniform chlorosis at the top or maybe knows what's up? What could be the reason and the solution? Th Is this some sort of immobile nutrient deficiency or excess? Could this be caused by heat and light stress? She is 80cm tall and almost touches the lights in the tent. I'm usually suffering from Calmag and Nitrogen issues and haven't yet experienced yellowing from the top. Thanks

Leaves. Color - Yellow

Plant. Too tall

Feeding. Deficiences

3 months ago

2

2

Solved

PH-Problems in Soil Before repotting, the pH value in the soil has always fallen to below 5.5. The plants always have an iron deficiency. I then repotted the plants and that worked well for 14 days. Now they are showing PH deficits again. The soil has PH 5,4 -4,8. What could be the reason?

Setup. Substrates

Feeding. Deficiences

4 months ago

1

2

Solved

LEAVES CENTER GETTING PALE ?I need your help. Nutrient issues or lock... What's your diagnosis OGs ? But I'd like to fix this before I go 12X12. What's do you think it is guys? I got these 3 culprits in mind: nitrogen, iron , sulfur ? 100% organic, water PH: 6:3 all along. Aloe/coconut + FF Big Bloom.

Leaves. Color - Pale

Feeding. Deficiences

4 months ago

1

1

Solved

Suspected Nitrogen Deficiency Noticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

7 months ago

2

2

Solved

notice any nutrient deficiencies or toxicity ?Hi guys, I was wondering if you could tell me if you notice any nutrient deficiencies or toxicity auto 25° /55%rh / ts1000 distance 60cm 75%power 40 dli (photone) feed two days ago and still wet with 700 ml 0.5ml bllom Budcandy 1ml 1ml rhinoskin 0,5 calmag Ph 6.4

Other. General questions

Feeding. Deficiences

7 months ago

1

3

Solved

Deficiency because she starts to flower? Leaf tipps light green. Some purple at the stems.I have not fed her, just a bit here and there. So I do believe she starts to need her medication. Its going to the end of preflower week1. Symptoms: some light tipps and some purple at the stems. Solution: feed her P and K. could add some CalMag ? Or Still feed more NPK?

Leaves. Color - Yellow

Setup. Strain - Autoflowering

Feeding. Deficiences

7 months ago

4

4

Solved

Autos reacting to All-Mix: Slight nitrogen overload?Pheno one showed very "leathery", weak, hanging leaves of dark green. Same time the fungus gnats had a run and the population doubled. After second LST also the stronger plant showed those signs on the younger upper leaves. Also curled down a little. Slight nitrogen toxicity?

Leaves. Curl down

Feeding. Deficiences

7 months ago

2

1

Solved

Deficiency What do you think the deficiency is in the last picture?

Feeding. Deficiences

7 months ago

5

5

Solved

Magnesium deficiency looked for similar cases in grow questions and now think it’s a magnesium deficiency. I use biobizz Calmag 0.5-0.8 ml/L like in guide. Last week 1 ml/L. but magnesium deficiency does not go away, Question for biobizz users, how much Сalmag can be used before overdose?

Feeding. Deficiences

7 months ago

5

8

Solved

Idk what's wrong Can anyone help me figure out what's wrong with this baby? Special queen photo, week 8 of veg, organic pellet fertilizer added directly in soil. Always watered just water, seemed so healthy till last week, then leaves started yellowing a bit.. Nutrient deiciency/excess? Wdy think

Leaves. Color - Yellow

Feeding. Deficiences

Techniques. Topping

7 months ago

2

Solved

Nutes Deficit - Yellow lower leaves and yellow tips. What to do?

Leaves. Tips - Die

Leaves. Color - Yellow

Feeding. Deficiences

6 months ago

3

1

Solved

Runoffs are significantly below inputs-Do I have a problem?Runoff continues to be a mystery. When watering I continue to get significantly less Ph and PPM (4.8 ph and 109 ppm) than my inputs (6.2 ph and 155 ppm) but the plant looks healthy. I have no idea what is going on or if its even a problem. Should I be worried and what can I do?

Feeding. Deficiences

6 months ago

6

4