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Let's play guess that deficiency

  • Thread starter Thread starter OldSmokie76
  • Start date Start date Sep 16, 2020
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Let's play guess that deficiency

OldSmokie76 Sep 16, 2020 3 Replies 1,073 Views
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OldSmokie76

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#1
So I'm looking over some leaf charts and trying to figure out some plant issues. Veg about 60 days old. Slight mite issue early. Treated with Dr Zymes. Using recycled soil. ph in the low 6's. Only amended soil. With two waterings using cal mag plus normal waterings. Allowing soil to dry a bit in between. I'm leaning toward K deficiency, P deficiency or magnesium deficiency. Or combination. Lol. Any insight would be appreciated. Should i try to bump the ph up a little?
 

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ArmoredGoat

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#2
OldSmokie76 said:
So I'm looking over some leaf charts and trying to figure out some plant issues. Veg about 60 days old. Slight mite issue early. Treated with Dr Zymes. Using recycled soil. ph in the low 6's. Only amended soil. With two waterings using cal mag plus normal waterings. Allowing soil to dry a bit in between. I'm leaning toward K deficiency, P deficiency or magnesium deficiency. Or combination. Lol. Any insight would be appreciated. Should i try to bump the ph up a little?
Click to expand...

I mostly agree with your assessment of possible causes. What I see is nutrient burn likely the result of calmag on an otherwise very healthy plant (well done). My recommendation would be to dial back the nutrients a bit for your next watering. If you’re providing a full dose, move back to half and so on. Any chance you could post the ph and ppm of your run off using the Hanna scale? Thanks
 
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RippedTorn

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#3
Magnesium
 
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OldSmokie76

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ArmoredGoat said:
I mostly agree with your assessment of possible causes. What I see is nutrient burn likely the result of calmag on an otherwise very healthy plant (well done). My recommendation would be to dial back the nutrients a bit for your next watering. If you’re providing a full dose, move back to half and so on. Any chance you could post the ph and ppm of your run off using the Hanna scale? Thanks
Click to expand...
Hanna who? I'm really a noob when it comes to ph ec or ppm. I understand the concepts but have never really paid much attention until now. I've been in very forgiving soil mix for the past 3 yrs indoor. This is first go after about a year off. I'm assuming my lazy approach to reconditioning the soil has proven problematic. Lol. I knew i should have done a fresh soil build. I do have a ph pen and i will attempt to test the run off tonight.
 
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Thread info

Replies 3
Views 1,073
Started Sep 16, 2020
Latest post Sep 16, 2020
Starter OldSmokie76
Forum Cannabis Infirmary

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