Dutch Passion Dutch passion auto ultimate with dutch pro autoflower soil nutes

[TRIPDOG]

At the end of this grow I will list the schedule I used. I'll also list how the nutrients affected the pH of my water.

Water pH = 8.1

Week -6 plain pH water
Week -5. Plain pH water
Week -4. 2ml grow a & b, 1ml take root, 2ml multi total, 0.5 cal mag = solution ph 6.9
Week -3 2ml grow a & b, 1ml take root, 0.5 cal mag = solution pH 6.9
Week -2 2.5ml grow a & b, 1ml take root, 2ml multi total, 0.5 cal mag = solution pH 6.6
Week -1 3ml grow a & b, 1ml take root, o.5 cal mag = solution pH 6.5?
Week 1. 2ml bloom a & b, 1ml take root, 1ml multi total, 0.5 cal mag = solution pH 6.9
Week 2 2ml bloom a & b, 0.2ml explode, 0.5 cal mag = solution pH 6.7

The above is from this and my other euforia grow.

Tempted to stop adjusting the pH altogether. If the soil pH drops through the grow perhaps these higher values would be better. Either that or just add one drop of pH down to bring it under 6.5............

 

[Gonzo]

Calibra you said you have been getting low pH run off with your grows as well. I presume yours is not as low as mine. Someone mentioned that pH down can build up in the soil lowering its pH. Not sure if this is true or not but I noticed Dutch pro have a pH down for grow and another for bloom. My pH down is not Dutch pro but is same as the bloom pH down. What are you using? As I seem to add down every time I think I will buy the Dutch pro grow pH down.

Hello,

As you can see, soil is acidic as expected. You calculate 5,3 but in fact it is most probably lower. This is the range where nutrients are not availale any more because of chemical bindings, no matter if they are in soil. There is nothing wrong with acidic soil relating to roots. They like it, but they can not feed. That is the problem and you can see it on leaves.

The statement about accumulating acids in soil can be heard in an interview with Hesi owner on Youtube. No matter if Hesi, as well as Dutch pro sell them, you should know how to use them.

When Dutch pro recommends ph range, they expect you to mantain that range in your soil, they can not help you with your mistakes. It is very well known, that soil mostly gets acidic with time, so grower should be prepared for that and calculate that.

What you can do now is:

- flush with 3 x volume of your pots (tapped water would be just fine) and finish with light feeding
- add dolomite lime, but it works slowly
- feed as much as possible through leaves. Check with all your nutrients if they can be used for foliar feeding.
- stop adding any acids

and maybe something else that I have no idea of it.

If you continue with 5,8 feeding, you will finaly poison your soil. If you do everything to lift ph and help with some foliar feeding you will get some nice buds. Situation is not beyond repair, but unfortunatelly yield will be affected.

I think foliar feeding can save very much here, but I do not know how much food gets into plant this way. Flush works to some extend and you need litres and litres of water until ph starts to drop down slowly. Dolomite lime works slow, but repairs situation a little bit. Nothing of these work as magic stick.

I had experienced a lot of ph here and there battles and finally decided to switch to AN PH perfect. I am testing it now.

What I have written to you are my opinions and my understanding of plants, get some more opinions, maybe asking 24h help from experts would be good idea. Waira knows a lot about foliar feeding, you just have to ask question there (with detailed descriptions).

And maybe acidity is not the only source of your troubles, do not forget that also. We have all made a lot of mistakes thinking that we had known the rght answer when that was not really the case.

Good luck and be carefull with decisions.

 

[Ken357]

Hey there Tripdog,

I thought I'd add my $0.02 worth because I see you've been having the same problems as I with PH and CalMag lockout. I've been growing in coco coir for a while now and I know to keep PH of the nutrient solution at a PH of 5.8 - 6.0 in coir. But in new soil which apparently is buffered I always shoot for a PH of 6.8 instead of 5.8. This is what I've always heard when talking to experienced growers. In my humble opinion i would try to avoid any PH down for a while to raise soil PH a bit. I have been experimenting with the addition of beneficial bacteria, Humic acid, and enzymes to help breakup salt build-ups in the soil. Maybe some Epsom salts would help also. And of course flushing which can be troublesome in soil...

Anyway, happy growing and bending stalks to ya!
Cheers, Ken357

PS I'm subbed! ;-)

 

[TRIPDOG]

Thank you gonzo so much for your help. And I thought I was doing OK lol. Thanks ken too.
So my soil pH is too low and needs increasing.
Only have 4 or 5 weeks left so bit too late.
Think will try to increase pH over next couple of weeks but might be too late so will folia feed with alg a mic taking care to spray leaves avoiding buds.
My other grow auto euforia will increase pH also.
Going to look into a soil pH probe as well.

 

[Ken357]

Thank you gonzo so much for your help. And I thought I was doing OK lol. Thanks ken too.
So my soil pH is too low and needs increasing.
Only have 4 or 5 weeks left so bit too late.
Think will try to increase pH over next couple of weeks but might be too late so will folia feed with alg a mic taking care to spray leaves avoiding buds.
My other grow auto euforia will increase pH also.
Going to look into a soil pH probe as well.

Sounds like a plan Tripdog! Foliar feeding and slowly increasing pH should get you there. A good pH probe for soil isn't a bad idea either. Testing runoff is kinda tricky. Especially if the holes in your pots have the salt buildup showing.
I'm still in the process of leaching salts etc from my coir by way of slightly higher pH of my nutrient mix and allowing a 30% runoff each time I water. Slowly but surely I'm seeing improvement. [emoji6]

 

[faded187]

what up trippdog? yeah bro 5.8 isn't for soil. soil should be 6.3-6.8. I would just start feeding at 7.0 for a lil bit till it slowly raises back up. its prolly low from putting to low in. but maybe have to top dress with lime.we see in couple days do runoff test again. if I know answer here you can pm me and maybe I can help depending on results on what we have to do.yeah if you can pick up an accuate 8 soil probe it would make your life way easier.lol peace my friend

 

[calabria420]

what up trippdog? yeah bro 5.8 isn't for soil. soil should be 6.3-6.8. I would just start feeding at 7.0 for a lil bit till it slowly raises back up. its prolly low from putting to low in. but maybe have to top dress with lime.we see in couple days do runoff test again. if I know answer here you can pm me and maybe I can help depending on results on what we have to do.yeah if you can pick up an accuate 8 soil probe it would make your life way easier.lol peace my friend

On the topic of the accurate 8 soil probe , does anyone know of where to buy or get one shipped in Canada without going through the border-customs.....(so much BS to get stuff through customs when buying from ebay or amazon .....) Anyone with any suggestions .......

 

[Marty5678]

Hi trip dog, I'm no pro at all, only on my first grow, dutch passions auto ultimate as well with a few others thrown and I've always though ph'in your nutes to 5.8 was for hydro grows and you need to be more about the 6.4-6.8 range for soil grows I think.

marty

 

[TRIPDOG]

 

[TRIPDOG]

Hopefully last post shows Dutch pro info. PH bit was why I was confused. Note this is soil autoflower not the plain soil nutes.