Thought is was p deficiency but?

[Artstone]

Now I and seeing the rust colored spots, not sure if it is potassium, btw 25 days in flower the strain goes 8-9 wks

 

[Bluey]

So on the dark green leaves yep and a little bit of pigment loss and minor burn.

On the light green leaves plant behind lot of pigment loss and yellowing margins also, huge burn on tips or a deficiency and some red along edges of a couple of fingers, no real rust spots.

Medium? pH range of inputs? EC of any inputs? What are you feeding them?

 

[Artstone]

So on the dark green leaves yep and a little bit of pigment loss and minor burn.

On the light green leaves plant behind lot of pigment loss and yellowing margins also, huge burn on tips or a deficiency and some red along edges of a couple of fingers, no real rust spots.

Medium? pH range of inputs? EC of any inputs? What are you feeding them?

Fox farms soil ph last watering was 6.5 and feed week 8 on ff schedule . Reading your comment does it look like burn on the dark plant and deficiency on the lighter green plant?.

 

[Bluey]

I'd say burn on the dark one is minor, so I'd cut back nutes just a fraction.

The issue with the light green leaves is likely lockout from way too much nute. I'm guessing here becausecI don't know how much your currently giving her. It may be not enough and a P deficiency but I'm not sure either way.

Edit. Oh and I'd vary the pH 6.5 to 6.8 in flower too....

 

[bdeegan]

Have you checked the ph of the soil or runoff? I struggled with ff soil running very low ph even though I was watering with 6.5-7phed water.

 

[dirtymike]

Magnesium and zinc

 

[Allenpro]

I dont think its a P deficency it looks more like something is blocking Mag. Flush, Flush, Flush and when to start feeding again depends on your media, you can clear hydro in a day but soil takes a week or so

 

[Allenpro]

And feed at 1/2 strength when you start again

 

[Artstone]

Thanks everyone, yeah I did a sledgehammer flush on Friday, but fucjed up and only 1/2 the volume my auto water battery died.

i didn’t want to do again next day for fear of over watering, doing the remaining sledgehammer now.

 

[Allenpro]

I am not sure how sledge hammer works but I know alot of those flush agents flush everything including the bacteria you want to keep

 

[Artstone]

Thanks allenpro!

 

[Artstone]

Have you checked the ph of the soil or runoff? I struggled with ff soil running very low ph even though I was watering with 6.5-7phed water.

I can’t find a soil ph tester worth shit! Every one I tried had the ph nailed on the high range, I don’t think they were accurate. Are you still using fox farms? I’ve soured on it but I’m used to it 💩

 

[Artstone]

I dont think it’s a P deficency it looks more like something is blocking Mag. Flush, Flush, Flush and when to start feeding again depends on your media, you can clear hydro in a day but soil takes a week or so

What do you use for flush? And what quantity? I needed to feed last night so gave the remaining sledgehammer, but instructions say use 2x your normal watering and I didn’t , but did 2 strait sledgehammer watering. Wondering if I should give a 2x fush over weekend

 

[Bluey]

When flushing out the medium I think it's a good idea to use pH'ed water. It's fine to add nutes to it at a ratio suitable for the stage of growth, but typically ½ to ⅔ strength.The idea is to wash out everything in the medium and get its pH back to where it should be. Adding nutes lessons the stress on the plant especially if in a medium like coco. You need good runoff and quite a bit of it to clean out the crap.

If I am at a point I need to flush because nothing else is working I'll put like 3gal through a 5 gal pot but I only do it once as it is pretty stressful for the plants.

 

[bdeegan]

Totally agree all “soil” tester don’t work worth a damn. The secret is to make a soil slurry. Take a few small scoops of soil, mix with distilled water and stick your ph probe in the mud. While you’re there, you can also take a tds/ec reading to get an idea of how many nutes are left.

 

[bdeegan]

For what it’s worth I don’t use fox farms any more. Consistently having ph issues and getting inconsistent quality and ph out of a new bag. I tried two different liquid nutes one salt one organic based while using ff but still had ph issues. I’ve been using Promix hp with Gaia green organic dry/power nutes for the last year and I’m sold. Easier, no mixing nutes, basically a “water only” grow, all organic, and no crazy ph swings. I also have started reusing/amending the soil so less $ spent.

 

[bdeegan]

Nectar for the gods makes a great product to flush with. Herculean Harvest. It is basically liquid bone meal, 0-6-0. It is very mild and what nftg recommends to every watering and to flush with. That is the only “liquid nute” that I hung on to just in case I have to flush one out.

 

[dirtymike]

Magnesium and zinc

 

[Artstone]

So it’s water day, last 2 waters where with sledgehammer as I said , today doing plain water and about 20% more than usual feed to try and flush a little more.

 

[Artstone]

new issue buds getting heavy and falling over so at almost 5 weeks I put in a scrog net. I know this is late and so most buds are under the net. I am wondering if there’s a way to get the plants to stretch so the can be pulled above the net. Any ideas?