Let's play guess that deficiency

[OldSmokie76]

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?

 

[ArmoredGoat]

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?

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

 

[RippedTorn]

Magnesium

 

[OldSmokie76]

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

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.