End of Life Cycle?

[Frank M]

Problem: Fan Leafs turning yellow to brown
Medium/grow method: Miracle Grow soil mix (I know it sucks)
Feed: and supplements used: Minor 2-3 ml’s per Gallon of GH flora series used because of fert. In soil mix
water source: Distilled or PH'ed Tap water
Strain/age: Female Seeds: Auto Speed Bud 83 days
light used: LED A19 (4) 2700K / (3)Grow a19 leds
Climate: Basement In new Tent for past month with small heater temp's 68-75F
Soil PH 6.0

OK this had some issues with this a month ago and Went for a small Gro-tent with heater to fix the cold issue that had stunted growth and was messing with nute uptake changed to 12/12 for a little while to get flowering goingagain and then back to 20/4

So this sucker is 83 days old with a 3+ weeks of stunted growth from cold.
Is it just it's Death Knell or is their a nute problem like a nitrogen deficiency.

 

[KonopCh]

Up your NPK, she has at least 4 weeks till finish.

 

[Frank M]

ok will do keeping fingers crossed

 

[Waira]

-- Frank, what's good? .... OK, try to get that soil pH up to 6.4-ish,...how did you test it? ..... and yes, MG soils are garbage, and usually have pH issues built in! ... which leads to my worry here, that you have a lockout going from either off pH and/or ion overload in the soil... there may be nutes in there, but not necessarily the right ones in the right amounts, especially secondary and micronutes,.... try a foliar of epsoms at 1tsp/qt, (or the Ca-Mg in a pinch, half strength), and use a wetting agent to make it coat and stick better, which allows more to be absorbed,.. get tops and bottoms of leaves,.....



....N defc. hits lowers first and worst,.. this looks more like advanced Mg defc.

 

[Frank M]

-- Frank, what's good? .... OK, try to get that soil pH up to 6.4-ish,...how did you test it? ..... and yes, MG soils are garbage, and usually have pH issues built in! ... which leads to my worry here, that you have a lockout going from either off pH and/or ion overload in the soil... there may be nutes in there, but not necessarily the right ones in the right amounts, especially secondary and micronutes,.... try a foliar of epsoms at 1tsp/qt, (or the Ca-Mg in a pinch, half strength), and use a wetting agent to make it coat and stick better, which allows more to be absorbed,.. get tops and bottoms of leaves,.....



....N defc. hits lowers first and worst,.. this looks more like advanced Mg defc. View attachment 842900

I was thinking MG def also, Soil ph was tested with an Accurate 8 that I bought for a Christmas present for myself.

Knew my water was Hard but I Figured out my Tap water is VERY VERY HARD water district web page says 20 grains per gallon at last check it was 234ppm out of tap.

Did a foliar spray of Epsom over the weekend and last plain watering 2 days ago was with Epsom salt only.

Just trying to figure out a good and quick way to up the soil PH now.

Only other thing i can think of is root bound in a 5 gal bucket because i can feel roots when sticking a finger in the soil about an inch down.

some pics from today. I only pulling dead leaves off if they come off with no pressure if I have to tug they stay.

 

[Waira]

...well, 234ppm is not quite that bad fortunately! Still, this would be bad for growing,.. cumulative inputs would start to drive pH up, and resist like hell to adjusting in-pot,.... Good on the A8 unit! With that reading, I'd start mixing Di and tap to about 150ppm, to get some carbonate buffering in there and help get the soil pH up to 6.4-ish,.... new pics, showing N defc, fan tapping, some of which of course is normal at this stage,... might be a touch of P defc. starting too, so feed her more.. with a sizeable plant demands are high,... with the Micro part, there's a good amount of n in there, and micronute defc. often show around this time as well,... so bloom + micro extra's... fans won't stop fading, but this will slow down the pace some,... stop the foliar now, you don't want a lot of slat residues building up, or risk mold,... maybe do a clean water spray or two to ?rinse" her some, and redissolve what's on there,.. early in light cycle is best, to make sure she's fully dry by lights out....

 

[Frank M]

Thanks @Waira You are always a BIG help. I do think the Epsom salt helped and My Ghost Pepper and 7 pot red brain pepper plants really liked it too, they perked right up